./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label36.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label36.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF --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 1f02632fff6230a332a62c3e19b9c0e1537cb9f813d08c30374ad65993036a6c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:01:35,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:01:35,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:01:35,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:01:35,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:01:35,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:01:35,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:01:35,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:01:35,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:01:35,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:01:35,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:01:35,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:01:35,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:01:35,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:01:35,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:01:35,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:01:35,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:01:35,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:01:35,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:01:35,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:01:35,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:01:35,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:01:35,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:01:35,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:01:35,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:01:35,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:01:35,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:01:35,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:01:35,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:01:35,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:01:35,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:01:35,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:01:35,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:01:35,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:01:35,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:01:35,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:01:35,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:01:35,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:01:35,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:01:35,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:01:35,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:01:35,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:01:36,040 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:01:36,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:01:36,044 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:01:36,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:01:36,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:01:36,053 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:01:36,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:01:36,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:01:36,055 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:01:36,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:01:36,056 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:01:36,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:01:36,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:01:36,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:01:36,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:01:36,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:01:36,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:01:36,058 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:01:36,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:01:36,058 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:01:36,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:01:36,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:01:36,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:01:36,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:01:36,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:01:36,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:01:36,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:01:36,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:01:36,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:01:36,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:01:36,062 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:01:36,063 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:01:36,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:01:36,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:01:36,064 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_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f02632fff6230a332a62c3e19b9c0e1537cb9f813d08c30374ad65993036a6c [2021-11-20 06:01:36,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:01:36,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:01:36,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:01:36,450 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:01:36,451 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:01:36,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/eca-rers2012/Problem01_label36.c [2021-11-20 06:01:36,555 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/data/5794f09cf/e5e0fcad16a941b5838d82f4720d93d6/FLAGb3449a5c9 [2021-11-20 06:01:37,134 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:01:37,134 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/sv-benchmarks/c/eca-rers2012/Problem01_label36.c [2021-11-20 06:01:37,150 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/data/5794f09cf/e5e0fcad16a941b5838d82f4720d93d6/FLAGb3449a5c9 [2021-11-20 06:01:37,381 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/data/5794f09cf/e5e0fcad16a941b5838d82f4720d93d6 [2021-11-20 06:01:37,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:01:37,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:01:37,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:01:37,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:01:37,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:01:37,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:01:37" (1/1) ... [2021-11-20 06:01:37,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a38922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:37, skipping insertion in model container [2021-11-20 06:01:37,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:01:37" (1/1) ... [2021-11-20 06:01:37,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:01:37,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:01:37,842 WARN L230 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_44c4f552-748a-4968-b3a5-5c9d97466fac/sv-benchmarks/c/eca-rers2012/Problem01_label36.c[18233,18246] [2021-11-20 06:01:37,901 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:01:37,910 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:01:38,014 WARN L230 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_44c4f552-748a-4968-b3a5-5c9d97466fac/sv-benchmarks/c/eca-rers2012/Problem01_label36.c[18233,18246] [2021-11-20 06:01:38,045 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:01:38,072 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:01:38,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:38 WrapperNode [2021-11-20 06:01:38,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:01:38,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:01:38,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:01:38,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:01:38,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:38" (1/1) ... [2021-11-20 06:01:38,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:38" (1/1) ... [2021-11-20 06:01:38,176 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2021-11-20 06:01:38,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:01:38,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:01:38,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:01:38,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:01:38,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:38" (1/1) ... [2021-11-20 06:01:38,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:38" (1/1) ... [2021-11-20 06:01:38,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:38" (1/1) ... [2021-11-20 06:01:38,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:38" (1/1) ... [2021-11-20 06:01:38,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:38" (1/1) ... [2021-11-20 06:01:38,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:38" (1/1) ... [2021-11-20 06:01:38,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:38" (1/1) ... [2021-11-20 06:01:38,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:01:38,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:01:38,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:01:38,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:01:38,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:38" (1/1) ... [2021-11-20 06:01:38,284 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:01:38,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:01:38,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:01:38,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:01:38,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:01:38,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:01:38,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:01:38,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:01:38,466 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:01:38,468 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:01:39,565 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:01:39,576 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:01:39,576 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:01:39,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:01:39 BoogieIcfgContainer [2021-11-20 06:01:39,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:01:39,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:01:39,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:01:39,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:01:39,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:01:37" (1/3) ... [2021-11-20 06:01:39,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b2b93a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:01:39, skipping insertion in model container [2021-11-20 06:01:39,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:01:38" (2/3) ... [2021-11-20 06:01:39,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b2b93a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:01:39, skipping insertion in model container [2021-11-20 06:01:39,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:01:39" (3/3) ... [2021-11-20 06:01:39,589 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label36.c [2021-11-20 06:01:39,594 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:01:39,595 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:01:39,669 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:01:39,680 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 [2021-11-20 06:01:39,680 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:01:39,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:39,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-20 06:01:39,736 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:39,737 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:39,738 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:01:39,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:01:39,744 INFO L85 PathProgramCache]: Analyzing trace with hash 2059373479, now seen corresponding path program 1 times [2021-11-20 06:01:39,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:01:39,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437104042] [2021-11-20 06:01:39,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:39,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:01:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:40,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:01:40,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:01:40,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437104042] [2021-11-20 06:01:40,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437104042] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:01:40,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:01:40,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:01:40,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038088414] [2021-11-20 06:01:40,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:01:40,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:01:40,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:01:40,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:01:40,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:01:40,280 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:41,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:01:41,140 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2021-11-20 06:01:41,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:01:41,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-11-20 06:01:41,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:01:41,157 INFO L225 Difference]: With dead ends: 528 [2021-11-20 06:01:41,157 INFO L226 Difference]: Without dead ends: 266 [2021-11-20 06:01:41,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:01:41,171 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 70 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:01:41,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 84 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 06:01:41,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-11-20 06:01:41,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-11-20 06:01:41,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4339622641509433) internal successors, (380), 265 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:41,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2021-11-20 06:01:41,263 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 102 [2021-11-20 06:01:41,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:01:41,265 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2021-11-20 06:01:41,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:41,265 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2021-11-20 06:01:41,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-20 06:01:41,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:41,275 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:41,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:01:41,276 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:01:41,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:01:41,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1045586682, now seen corresponding path program 1 times [2021-11-20 06:01:41,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:01:41,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104000063] [2021-11-20 06:01:41,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:41,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:01:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:41,354 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:01:41,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:01:41,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104000063] [2021-11-20 06:01:41,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104000063] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:01:41,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:01:41,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:01:41,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174193681] [2021-11-20 06:01:41,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:01:41,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:01:41,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:01:41,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:01:41,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:01:41,359 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:41,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:01:41,801 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2021-11-20 06:01:41,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:01:41,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2021-11-20 06:01:41,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:01:41,807 INFO L225 Difference]: With dead ends: 792 [2021-11-20 06:01:41,807 INFO L226 Difference]: Without dead ends: 528 [2021-11-20 06:01:41,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:01:41,810 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:01:41,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 36 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:01:41,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-11-20 06:01:41,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2021-11-20 06:01:41,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3453510436432639) internal successors, (709), 527 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:41,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 709 transitions. [2021-11-20 06:01:41,851 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 709 transitions. Word has length 108 [2021-11-20 06:01:41,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:01:41,851 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 709 transitions. [2021-11-20 06:01:41,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:41,852 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 709 transitions. [2021-11-20 06:01:41,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-20 06:01:41,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:41,855 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:41,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:01:41,855 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:01:41,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:01:41,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1471586822, now seen corresponding path program 1 times [2021-11-20 06:01:41,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:01:41,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651756723] [2021-11-20 06:01:41,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:41,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:01:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:42,172 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:01:42,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:01:42,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651756723] [2021-11-20 06:01:42,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651756723] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:01:42,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:01:42,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:01:42,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66295519] [2021-11-20 06:01:42,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:01:42,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:01:42,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:01:42,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:01:42,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:01:42,179 INFO L87 Difference]: Start difference. First operand 528 states and 709 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:42,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:01:42,876 INFO L93 Difference]: Finished difference Result 1411 states and 1882 transitions. [2021-11-20 06:01:42,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:01:42,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2021-11-20 06:01:42,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:01:42,882 INFO L225 Difference]: With dead ends: 1411 [2021-11-20 06:01:42,882 INFO L226 Difference]: Without dead ends: 790 [2021-11-20 06:01:42,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:01:42,885 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 130 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:01:42,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 81 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 06:01:42,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2021-11-20 06:01:42,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2021-11-20 06:01:42,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 1.1634980988593155) internal successors, (918), 789 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:42,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 918 transitions. [2021-11-20 06:01:42,914 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 918 transitions. Word has length 109 [2021-11-20 06:01:42,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:01:42,915 INFO L470 AbstractCegarLoop]: Abstraction has 790 states and 918 transitions. [2021-11-20 06:01:42,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:42,915 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 918 transitions. [2021-11-20 06:01:42,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-20 06:01:42,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:42,919 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:42,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:01:42,920 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:01:42,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:01:42,920 INFO L85 PathProgramCache]: Analyzing trace with hash -157225395, now seen corresponding path program 1 times [2021-11-20 06:01:42,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:01:42,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218354034] [2021-11-20 06:01:42,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:42,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:01:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:42,977 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 06:01:42,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:01:42,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218354034] [2021-11-20 06:01:42,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218354034] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:01:42,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:01:42,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:01:42,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051981072] [2021-11-20 06:01:42,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:01:42,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:01:42,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:01:42,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:01:42,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:01:42,980 INFO L87 Difference]: Start difference. First operand 790 states and 918 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:43,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:01:43,389 INFO L93 Difference]: Finished difference Result 1578 states and 1859 transitions. [2021-11-20 06:01:43,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:01:43,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-20 06:01:43,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:01:43,401 INFO L225 Difference]: With dead ends: 1578 [2021-11-20 06:01:43,401 INFO L226 Difference]: Without dead ends: 921 [2021-11-20 06:01:43,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:01:43,404 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 129 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:01:43,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 45 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:01:43,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-11-20 06:01:43,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2021-11-20 06:01:43,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.1532608695652173) internal successors, (1061), 920 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:43,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1061 transitions. [2021-11-20 06:01:43,453 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1061 transitions. Word has length 114 [2021-11-20 06:01:43,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:01:43,454 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1061 transitions. [2021-11-20 06:01:43,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:43,454 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1061 transitions. [2021-11-20 06:01:43,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-20 06:01:43,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:43,459 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:43,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:01:43,459 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:01:43,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:01:43,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1991466069, now seen corresponding path program 1 times [2021-11-20 06:01:43,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:01:43,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068711856] [2021-11-20 06:01:43,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:43,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:01:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:43,566 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-20 06:01:43,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:01:43,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068711856] [2021-11-20 06:01:43,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068711856] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:01:43,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:01:43,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:01:43,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923116723] [2021-11-20 06:01:43,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:01:43,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:01:43,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:01:43,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:01:43,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:01:43,573 INFO L87 Difference]: Start difference. First operand 921 states and 1061 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:43,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:01:43,987 INFO L93 Difference]: Finished difference Result 2364 states and 2732 transitions. [2021-11-20 06:01:43,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:01:43,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 123 [2021-11-20 06:01:43,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:01:43,997 INFO L225 Difference]: With dead ends: 2364 [2021-11-20 06:01:43,997 INFO L226 Difference]: Without dead ends: 1576 [2021-11-20 06:01:43,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:01:44,010 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 135 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:01:44,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 19 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:01:44,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-11-20 06:01:44,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1183. [2021-11-20 06:01:44,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.1505922165820643) internal successors, (1360), 1182 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:44,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1360 transitions. [2021-11-20 06:01:44,071 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1360 transitions. Word has length 123 [2021-11-20 06:01:44,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:01:44,072 INFO L470 AbstractCegarLoop]: Abstraction has 1183 states and 1360 transitions. [2021-11-20 06:01:44,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:44,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1360 transitions. [2021-11-20 06:01:44,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-20 06:01:44,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:44,081 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:44,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:01:44,082 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:01:44,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:01:44,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1453681636, now seen corresponding path program 1 times [2021-11-20 06:01:44,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:01:44,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297228004] [2021-11-20 06:01:44,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:44,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:01:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:44,166 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 06:01:44,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:01:44,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297228004] [2021-11-20 06:01:44,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297228004] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:01:44,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:01:44,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:01:44,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028652956] [2021-11-20 06:01:44,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:01:44,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:01:44,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:01:44,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:01:44,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:01:44,169 INFO L87 Difference]: Start difference. First operand 1183 states and 1360 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:44,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:01:44,784 INFO L93 Difference]: Finished difference Result 2495 states and 2925 transitions. [2021-11-20 06:01:44,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:01:44,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2021-11-20 06:01:44,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:01:44,794 INFO L225 Difference]: With dead ends: 2495 [2021-11-20 06:01:44,794 INFO L226 Difference]: Without dead ends: 1445 [2021-11-20 06:01:44,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:01:44,799 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 262 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:01:44,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 34 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 06:01:44,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2021-11-20 06:01:44,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2021-11-20 06:01:44,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.144736842105263) internal successors, (1653), 1444 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:44,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1653 transitions. [2021-11-20 06:01:44,842 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1653 transitions. Word has length 129 [2021-11-20 06:01:44,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:01:44,842 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 1653 transitions. [2021-11-20 06:01:44,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:44,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1653 transitions. [2021-11-20 06:01:44,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-20 06:01:44,846 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:44,846 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:44,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:01:44,847 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:01:44,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:01:44,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1636914809, now seen corresponding path program 1 times [2021-11-20 06:01:44,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:01:44,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11058842] [2021-11-20 06:01:44,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:44,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:01:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:44,963 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-20 06:01:44,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:01:44,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11058842] [2021-11-20 06:01:44,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11058842] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:01:44,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:01:44,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:01:44,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103237917] [2021-11-20 06:01:44,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:01:44,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:01:44,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:01:44,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:01:44,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:01:44,967 INFO L87 Difference]: Start difference. First operand 1445 states and 1653 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:45,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:01:45,568 INFO L93 Difference]: Finished difference Result 3281 states and 3775 transitions. [2021-11-20 06:01:45,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:01:45,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-11-20 06:01:45,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:01:45,581 INFO L225 Difference]: With dead ends: 3281 [2021-11-20 06:01:45,581 INFO L226 Difference]: Without dead ends: 1969 [2021-11-20 06:01:45,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:01:45,588 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 371 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:01:45,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [371 Valid, 42 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 06:01:45,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2021-11-20 06:01:45,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838. [2021-11-20 06:01:45,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.136091453456723) internal successors, (2087), 1837 states have internal predecessors, (2087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:45,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2087 transitions. [2021-11-20 06:01:45,638 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2087 transitions. Word has length 143 [2021-11-20 06:01:45,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:01:45,638 INFO L470 AbstractCegarLoop]: Abstraction has 1838 states and 2087 transitions. [2021-11-20 06:01:45,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:45,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2087 transitions. [2021-11-20 06:01:45,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-20 06:01:45,643 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:45,643 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:45,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 06:01:45,644 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:01:45,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:01:45,645 INFO L85 PathProgramCache]: Analyzing trace with hash -359253316, now seen corresponding path program 1 times [2021-11-20 06:01:45,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:01:45,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595025592] [2021-11-20 06:01:45,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:45,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:01:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:45,740 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-20 06:01:45,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:01:45,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595025592] [2021-11-20 06:01:45,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595025592] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:01:45,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:01:45,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:01:45,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722645853] [2021-11-20 06:01:45,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:01:45,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:01:45,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:01:45,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:01:45,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:01:45,743 INFO L87 Difference]: Start difference. First operand 1838 states and 2087 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:46,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:01:46,290 INFO L93 Difference]: Finished difference Result 3805 states and 4312 transitions. [2021-11-20 06:01:46,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:01:46,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 160 [2021-11-20 06:01:46,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:01:46,301 INFO L225 Difference]: With dead ends: 3805 [2021-11-20 06:01:46,301 INFO L226 Difference]: Without dead ends: 2100 [2021-11-20 06:01:46,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:01:46,304 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 275 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:01:46,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 33 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 06:01:46,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2021-11-20 06:01:46,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838. [2021-11-20 06:01:46,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.1295590636908002) internal successors, (2075), 1837 states have internal predecessors, (2075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:46,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2075 transitions. [2021-11-20 06:01:46,354 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2075 transitions. Word has length 160 [2021-11-20 06:01:46,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:01:46,355 INFO L470 AbstractCegarLoop]: Abstraction has 1838 states and 2075 transitions. [2021-11-20 06:01:46,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:46,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2075 transitions. [2021-11-20 06:01:46,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-20 06:01:46,360 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:46,360 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:46,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 06:01:46,361 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:01:46,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:01:46,361 INFO L85 PathProgramCache]: Analyzing trace with hash 21711964, now seen corresponding path program 1 times [2021-11-20 06:01:46,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:01:46,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668546808] [2021-11-20 06:01:46,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:46,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:01:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-20 06:01:46,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:01:46,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668546808] [2021-11-20 06:01:46,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668546808] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:01:46,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:01:46,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:01:46,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485844792] [2021-11-20 06:01:46,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:01:46,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:01:46,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:01:46,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:01:46,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:01:46,450 INFO L87 Difference]: Start difference. First operand 1838 states and 2075 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:46,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:01:46,851 INFO L93 Difference]: Finished difference Result 3936 states and 4452 transitions. [2021-11-20 06:01:46,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:01:46,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2021-11-20 06:01:46,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:01:46,865 INFO L225 Difference]: With dead ends: 3936 [2021-11-20 06:01:46,865 INFO L226 Difference]: Without dead ends: 2231 [2021-11-20 06:01:46,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:01:46,870 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 86 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:01:46,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 180 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:01:46,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2021-11-20 06:01:46,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2100. [2021-11-20 06:01:46,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.120057170080991) internal successors, (2351), 2099 states have internal predecessors, (2351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:46,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2351 transitions. [2021-11-20 06:01:46,925 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2351 transitions. Word has length 203 [2021-11-20 06:01:46,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:01:46,926 INFO L470 AbstractCegarLoop]: Abstraction has 2100 states and 2351 transitions. [2021-11-20 06:01:46,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2351 transitions. [2021-11-20 06:01:46,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-20 06:01:46,932 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:46,932 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:46,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 06:01:46,932 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:01:46,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:01:46,937 INFO L85 PathProgramCache]: Analyzing trace with hash -908217879, now seen corresponding path program 1 times [2021-11-20 06:01:46,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:01:46,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949378661] [2021-11-20 06:01:46,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:46,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:01:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:47,235 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 57 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:01:47,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:01:47,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949378661] [2021-11-20 06:01:47,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949378661] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:01:47,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208035679] [2021-11-20 06:01:47,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:47,237 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:01:47,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:01:47,242 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:01:47,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:01:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:47,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:01:47,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:01:48,120 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-11-20 06:01:48,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:01:48,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208035679] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:01:48,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:01:48,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-11-20 06:01:48,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262239262] [2021-11-20 06:01:48,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:01:48,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:01:48,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:01:48,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:01:48,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:01:48,123 INFO L87 Difference]: Start difference. First operand 2100 states and 2351 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:48,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:01:48,496 INFO L93 Difference]: Finished difference Result 4198 states and 4700 transitions. [2021-11-20 06:01:48,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:01:48,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 206 [2021-11-20 06:01:48,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:01:48,510 INFO L225 Difference]: With dead ends: 4198 [2021-11-20 06:01:48,510 INFO L226 Difference]: Without dead ends: 2100 [2021-11-20 06:01:48,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:01:48,515 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 42 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:01:48,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 170 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:01:48,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2021-11-20 06:01:48,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1969. [2021-11-20 06:01:48,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.100609756097561) internal successors, (2166), 1968 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:48,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2166 transitions. [2021-11-20 06:01:48,574 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2166 transitions. Word has length 206 [2021-11-20 06:01:48,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:01:48,575 INFO L470 AbstractCegarLoop]: Abstraction has 1969 states and 2166 transitions. [2021-11-20 06:01:48,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:48,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2166 transitions. [2021-11-20 06:01:48,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-20 06:01:48,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:48,581 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:48,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:01:48,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:01:48,805 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:01:48,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:01:48,806 INFO L85 PathProgramCache]: Analyzing trace with hash -737855579, now seen corresponding path program 1 times [2021-11-20 06:01:48,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:01:48,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461855438] [2021-11-20 06:01:48,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:48,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:01:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:49,017 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 64 proven. 119 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-20 06:01:49,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:01:49,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461855438] [2021-11-20 06:01:49,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461855438] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:01:49,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574027729] [2021-11-20 06:01:49,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:49,018 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:01:49,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:01:49,019 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:01:49,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 06:01:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:49,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:01:49,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:01:49,556 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-11-20 06:01:49,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:01:49,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574027729] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:01:49,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:01:49,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-20 06:01:49,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645653718] [2021-11-20 06:01:49,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:01:49,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:01:49,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:01:49,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:01:49,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:01:49,560 INFO L87 Difference]: Start difference. First operand 1969 states and 2166 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:49,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:01:49,967 INFO L93 Difference]: Finished difference Result 4329 states and 4757 transitions. [2021-11-20 06:01:49,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:01:49,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 225 [2021-11-20 06:01:49,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:01:49,979 INFO L225 Difference]: With dead ends: 4329 [2021-11-20 06:01:49,979 INFO L226 Difference]: Without dead ends: 2231 [2021-11-20 06:01:49,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:01:49,983 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 32 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:01:49,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 184 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:01:49,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2021-11-20 06:01:50,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2100. [2021-11-20 06:01:50,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.0809909480705098) internal successors, (2269), 2099 states have internal predecessors, (2269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:50,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2269 transitions. [2021-11-20 06:01:50,035 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2269 transitions. Word has length 225 [2021-11-20 06:01:50,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:01:50,036 INFO L470 AbstractCegarLoop]: Abstraction has 2100 states and 2269 transitions. [2021-11-20 06:01:50,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:50,036 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2269 transitions. [2021-11-20 06:01:50,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-20 06:01:50,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:50,046 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:50,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:01:50,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:01:50,268 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:01:50,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:01:50,268 INFO L85 PathProgramCache]: Analyzing trace with hash 326532960, now seen corresponding path program 1 times [2021-11-20 06:01:50,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:01:50,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958552800] [2021-11-20 06:01:50,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:50,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:01:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:50,415 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 67 proven. 122 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-20 06:01:50,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:01:50,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958552800] [2021-11-20 06:01:50,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958552800] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:01:50,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380284044] [2021-11-20 06:01:50,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:50,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:01:50,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:01:50,417 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:01:50,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 06:01:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:50,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:01:50,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:01:50,987 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-11-20 06:01:50,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:01:50,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380284044] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:01:50,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:01:50,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-20 06:01:50,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169067390] [2021-11-20 06:01:50,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:01:50,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:01:50,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:01:50,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:01:50,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:01:50,990 INFO L87 Difference]: Start difference. First operand 2100 states and 2269 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:51,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:01:51,349 INFO L93 Difference]: Finished difference Result 4198 states and 4536 transitions. [2021-11-20 06:01:51,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:01:51,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 228 [2021-11-20 06:01:51,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:01:51,360 INFO L225 Difference]: With dead ends: 4198 [2021-11-20 06:01:51,361 INFO L226 Difference]: Without dead ends: 2100 [2021-11-20 06:01:51,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:01:51,364 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 38 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:01:51,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 172 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:01:51,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2021-11-20 06:01:51,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838. [2021-11-20 06:01:51,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.0620577027762657) internal successors, (1951), 1837 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:51,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 1951 transitions. [2021-11-20 06:01:51,413 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 1951 transitions. Word has length 228 [2021-11-20 06:01:51,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:01:51,414 INFO L470 AbstractCegarLoop]: Abstraction has 1838 states and 1951 transitions. [2021-11-20 06:01:51,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:51,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 1951 transitions. [2021-11-20 06:01:51,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-11-20 06:01:51,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:51,421 INFO L514 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:51,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:01:51,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-20 06:01:51,637 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:01:51,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:01:51,638 INFO L85 PathProgramCache]: Analyzing trace with hash -799899186, now seen corresponding path program 1 times [2021-11-20 06:01:51,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:01:51,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880132977] [2021-11-20 06:01:51,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:51,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:01:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:51,859 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 86 proven. 141 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-20 06:01:51,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:01:51,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880132977] [2021-11-20 06:01:51,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880132977] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:01:51,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298427623] [2021-11-20 06:01:51,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:51,860 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:01:51,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:01:51,862 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:01:51,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 06:01:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:51,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:01:51,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:01:52,531 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-11-20 06:01:52,531 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:01:52,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298427623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:01:52,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:01:52,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-20 06:01:52,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183968828] [2021-11-20 06:01:52,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:01:52,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:01:52,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:01:52,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:01:52,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:01:52,538 INFO L87 Difference]: Start difference. First operand 1838 states and 1951 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:52,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:01:52,903 INFO L93 Difference]: Finished difference Result 2231 states and 2360 transitions. [2021-11-20 06:01:52,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:01:52,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 247 [2021-11-20 06:01:52,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:01:52,904 INFO L225 Difference]: With dead ends: 2231 [2021-11-20 06:01:52,905 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 06:01:52,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:01:52,907 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 54 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:01:52,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 27 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:01:52,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 06:01:52,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 06:01:52,908 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) [2021-11-20 06:01:52,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 06:01:52,909 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 247 [2021-11-20 06:01:52,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:01:52,909 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:01:52,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:01:52,909 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 06:01:52,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 06:01:52,912 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 06:01:52,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:01:53,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-20 06:01:53,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 06:01:53,865 INFO L858 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2021-11-20 06:01:53,865 INFO L858 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2021-11-20 06:01:53,865 INFO L858 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2021-11-20 06:01:53,865 INFO L858 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2021-11-20 06:01:53,865 INFO L858 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2021-11-20 06:01:53,865 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2021-11-20 06:01:53,865 INFO L858 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2021-11-20 06:01:53,865 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2021-11-20 06:01:53,866 INFO L858 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,866 INFO L858 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,866 INFO L858 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,866 INFO L858 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,866 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2021-11-20 06:01:53,866 INFO L858 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,866 INFO L858 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,866 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2021-11-20 06:01:53,866 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2021-11-20 06:01:53,866 INFO L858 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2021-11-20 06:01:53,867 INFO L858 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2021-11-20 06:01:53,867 INFO L858 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2021-11-20 06:01:53,867 INFO L858 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2021-11-20 06:01:53,867 INFO L858 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2021-11-20 06:01:53,867 INFO L858 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2021-11-20 06:01:53,867 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2021-11-20 06:01:53,867 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2021-11-20 06:01:53,867 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2021-11-20 06:01:53,867 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2021-11-20 06:01:53,867 INFO L858 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,868 INFO L858 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,868 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,868 INFO L858 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,868 INFO L858 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,868 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2021-11-20 06:01:53,868 INFO L858 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,868 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2021-11-20 06:01:53,868 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2021-11-20 06:01:53,868 INFO L858 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2021-11-20 06:01:53,868 INFO L858 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2021-11-20 06:01:53,868 INFO L858 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2021-11-20 06:01:53,869 INFO L858 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2021-11-20 06:01:53,869 INFO L858 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2021-11-20 06:01:53,869 INFO L858 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2021-11-20 06:01:53,869 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2021-11-20 06:01:53,869 INFO L858 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2021-11-20 06:01:53,869 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2021-11-20 06:01:53,869 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2021-11-20 06:01:53,869 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2021-11-20 06:01:53,869 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2021-11-20 06:01:53,869 INFO L858 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,870 INFO L858 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,870 INFO L858 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,870 INFO L858 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,870 INFO L858 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,870 INFO L858 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,870 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2021-11-20 06:01:53,870 INFO L858 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2021-11-20 06:01:53,870 INFO L858 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2021-11-20 06:01:53,870 INFO L858 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2021-11-20 06:01:53,870 INFO L858 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2021-11-20 06:01:53,870 INFO L858 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2021-11-20 06:01:53,871 INFO L858 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2021-11-20 06:01:53,871 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2021-11-20 06:01:53,871 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2021-11-20 06:01:53,871 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2021-11-20 06:01:53,871 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2021-11-20 06:01:53,871 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2021-11-20 06:01:53,871 INFO L858 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,871 INFO L858 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,871 INFO L858 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,871 INFO L858 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,872 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,872 INFO L858 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,872 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2021-11-20 06:01:53,872 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2021-11-20 06:01:53,872 INFO L858 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2021-11-20 06:01:53,872 INFO L858 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2021-11-20 06:01:53,872 INFO L858 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2021-11-20 06:01:53,872 INFO L858 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2021-11-20 06:01:53,874 INFO L858 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2021-11-20 06:01:53,874 INFO L858 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2021-11-20 06:01:53,874 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2021-11-20 06:01:53,874 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2021-11-20 06:01:53,874 INFO L858 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,875 INFO L858 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,875 INFO L858 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,875 INFO L858 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,875 INFO L858 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,875 INFO L858 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,875 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2021-11-20 06:01:53,875 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2021-11-20 06:01:53,876 INFO L858 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2021-11-20 06:01:53,876 INFO L858 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2021-11-20 06:01:53,876 INFO L858 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2021-11-20 06:01:53,876 INFO L858 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2021-11-20 06:01:53,876 INFO L858 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2021-11-20 06:01:53,876 INFO L858 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2021-11-20 06:01:53,877 INFO L858 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2021-11-20 06:01:53,877 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2021-11-20 06:01:53,877 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2021-11-20 06:01:53,877 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2021-11-20 06:01:53,877 INFO L858 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2021-11-20 06:01:53,877 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2021-11-20 06:01:53,877 INFO L858 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2021-11-20 06:01:53,878 INFO L858 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,878 INFO L858 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,878 INFO L858 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,878 INFO L858 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,878 INFO L858 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,878 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 06:01:53,879 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2021-11-20 06:01:53,879 INFO L858 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2021-11-20 06:01:53,879 INFO L858 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2021-11-20 06:01:53,881 INFO L858 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2021-11-20 06:01:53,882 INFO L858 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2021-11-20 06:01:53,882 INFO L858 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2021-11-20 06:01:53,882 INFO L858 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2021-11-20 06:01:53,882 INFO L858 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2021-11-20 06:01:53,882 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2021-11-20 06:01:53,883 INFO L854 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse6 (<= 15 ~a8~0)) (.cse8 (<= 14 ~a8~0)) (.cse0 (<= ~a21~0 0)) (.cse4 (= ~a16~0 6)) (.cse7 (= ~a17~0 1)) (.cse2 (= ~a20~0 1)) (.cse3 (<= ~a20~0 0)) (.cse5 (= ~a21~0 1)) (.cse9 (<= ~a16~0 5)) (.cse1 (<= ~a16~0 4))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5 .cse6) (and .cse5 .cse2 .cse6) (and .cse0 .cse7 .cse2) (and .cse3 .cse0 .cse7 .cse1) (and .cse3 .cse8 .cse5 .cse9) (and .cse8 .cse5 .cse9 .cse2) (and .cse4 .cse0 .cse2) (and .cse5 .cse1 .cse2) (and (= ~a12~0 8) .cse4 .cse5 .cse7 .cse2) (and .cse3 .cse5 .cse9 .cse1))) [2021-11-20 06:01:53,883 INFO L858 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,883 INFO L858 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,883 INFO L858 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,883 INFO L858 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,884 INFO L858 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,884 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2021-11-20 06:01:53,884 INFO L858 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2021-11-20 06:01:53,884 INFO L858 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2021-11-20 06:01:53,884 INFO L858 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2021-11-20 06:01:53,884 INFO L858 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2021-11-20 06:01:53,885 INFO L858 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2021-11-20 06:01:53,885 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2021-11-20 06:01:53,885 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2021-11-20 06:01:53,885 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2021-11-20 06:01:53,885 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2021-11-20 06:01:53,885 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2021-11-20 06:01:53,885 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2021-11-20 06:01:53,886 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 06:01:53,886 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2021-11-20 06:01:53,886 INFO L861 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2021-11-20 06:01:53,886 INFO L858 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,886 INFO L858 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,886 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,887 INFO L858 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,887 INFO L858 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,887 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2021-11-20 06:01:53,887 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2021-11-20 06:01:53,887 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2021-11-20 06:01:53,887 INFO L858 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2021-11-20 06:01:53,887 INFO L858 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2021-11-20 06:01:53,888 INFO L858 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2021-11-20 06:01:53,888 INFO L858 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2021-11-20 06:01:53,888 INFO L858 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2021-11-20 06:01:53,888 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2021-11-20 06:01:53,888 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 06:01:53,888 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,888 INFO L858 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,889 INFO L858 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,889 INFO L858 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,889 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2021-11-20 06:01:53,889 INFO L858 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,889 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2021-11-20 06:01:53,889 INFO L858 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2021-11-20 06:01:53,889 INFO L858 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2021-11-20 06:01:53,890 INFO L858 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2021-11-20 06:01:53,890 INFO L858 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2021-11-20 06:01:53,890 INFO L858 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2021-11-20 06:01:53,890 INFO L858 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2021-11-20 06:01:53,890 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2021-11-20 06:01:53,890 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2021-11-20 06:01:53,891 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2021-11-20 06:01:53,891 INFO L858 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2021-11-20 06:01:53,891 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2021-11-20 06:01:53,891 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2021-11-20 06:01:53,891 INFO L858 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,893 INFO L854 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse6 (<= 15 ~a8~0)) (.cse8 (<= 14 ~a8~0)) (.cse0 (<= ~a21~0 0)) (.cse4 (= ~a16~0 6)) (.cse7 (= ~a17~0 1)) (.cse2 (= ~a20~0 1)) (.cse3 (<= ~a20~0 0)) (.cse5 (= ~a21~0 1)) (.cse9 (<= ~a16~0 5)) (.cse1 (<= ~a16~0 4))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5 .cse6) (and .cse5 .cse2 .cse6) (and .cse0 .cse7 .cse2) (and .cse3 .cse0 .cse7 .cse1) (and .cse3 .cse8 .cse5 .cse9) (and .cse8 .cse5 .cse9 .cse2) (and .cse4 .cse0 .cse2) (and .cse5 .cse1 .cse2) (and (= ~a12~0 8) .cse4 .cse5 .cse7 .cse2) (and .cse3 .cse5 .cse9 .cse1))) [2021-11-20 06:01:53,893 INFO L858 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,893 INFO L858 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,893 INFO L858 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,894 INFO L858 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,894 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2021-11-20 06:01:53,894 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 06:01:53,894 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 492) no Hoare annotation was computed. [2021-11-20 06:01:53,894 INFO L858 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2021-11-20 06:01:53,894 INFO L858 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2021-11-20 06:01:53,894 INFO L858 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2021-11-20 06:01:53,895 INFO L858 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2021-11-20 06:01:53,895 INFO L858 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2021-11-20 06:01:53,895 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2021-11-20 06:01:53,895 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2021-11-20 06:01:53,895 INFO L858 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,895 INFO L858 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,896 INFO L858 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,896 INFO L858 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,896 INFO L858 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2021-11-20 06:01:53,896 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2021-11-20 06:01:53,896 INFO L858 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2021-11-20 06:01:53,896 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2021-11-20 06:01:53,896 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2021-11-20 06:01:53,902 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:53,905 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:01:53,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:01:53 BoogieIcfgContainer [2021-11-20 06:01:53,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:01:53,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:01:53,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:01:53,951 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:01:53,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:01:39" (3/4) ... [2021-11-20 06:01:53,955 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 06:01:53,985 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-20 06:01:53,987 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-20 06:01:53,988 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 06:01:53,990 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 06:01:54,133 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:01:54,133 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:01:54,134 INFO L158 Benchmark]: Toolchain (without parser) took 16749.29ms. Allocated memory was 130.0MB in the beginning and 243.3MB in the end (delta: 113.2MB). Free memory was 86.6MB in the beginning and 136.2MB in the end (delta: -49.6MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. [2021-11-20 06:01:54,134 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:01:54,135 INFO L158 Benchmark]: CACSL2BoogieTranslator took 665.56ms. Allocated memory is still 130.0MB. Free memory was 86.4MB in the beginning and 84.9MB in the end (delta: 1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:01:54,135 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.17ms. Allocated memory is still 130.0MB. Free memory was 84.9MB in the beginning and 79.1MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 06:01:54,136 INFO L158 Benchmark]: Boogie Preprocessor took 85.62ms. Allocated memory is still 130.0MB. Free memory was 79.1MB in the beginning and 74.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 06:01:54,136 INFO L158 Benchmark]: RCFGBuilder took 1305.70ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 74.9MB in the beginning and 110.5MB in the end (delta: -35.6MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2021-11-20 06:01:54,137 INFO L158 Benchmark]: TraceAbstraction took 14369.07ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 110.5MB in the beginning and 152.0MB in the end (delta: -41.5MB). Peak memory consumption was 118.2MB. Max. memory is 16.1GB. [2021-11-20 06:01:54,137 INFO L158 Benchmark]: Witness Printer took 182.83ms. Allocated memory is still 243.3MB. Free memory was 150.9MB in the beginning and 136.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-20 06:01:54,144 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 665.56ms. Allocated memory is still 130.0MB. Free memory was 86.4MB in the beginning and 84.9MB in the end (delta: 1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.17ms. Allocated memory is still 130.0MB. Free memory was 84.9MB in the beginning and 79.1MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.62ms. Allocated memory is still 130.0MB. Free memory was 79.1MB in the beginning and 74.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1305.70ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 74.9MB in the beginning and 110.5MB in the end (delta: -35.6MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. * TraceAbstraction took 14369.07ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 110.5MB in the beginning and 152.0MB in the end (delta: -41.5MB). Peak memory consumption was 118.2MB. Max. memory is 16.1GB. * Witness Printer took 182.83ms. Allocated memory is still 243.3MB. Free memory was 150.9MB in the beginning and 136.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 492]: 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, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.2s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1766 SdHoareTripleChecker+Valid, 5.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1766 mSDsluCounter, 1107 SdHoareTripleChecker+Invalid, 4.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 716 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4841 IncrementalHoareTripleChecker+Invalid, 5557 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 716 mSolverCounterUnsat, 1024 mSDtfsCounter, 4841 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 943 GetRequests, 914 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2100occurred in iteration=9, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 1441 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 43 NumberOfFragments, 265 HoareAnnotationTreeSize, 3 FomulaSimplifications, 184 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1950 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 3003 NumberOfCodeBlocks, 3003 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2986 ConstructedInterpolants, 0 QuantifiedInterpolants, 15197 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1663 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 1632/2112 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: 593]: Loop Invariant Derived loop invariant: (((((((((((a21 <= 0 && a16 <= 4) && a20 == 1) || (((a20 <= 0 && a16 == 6) && a21 == 1) && 15 <= a8)) || ((a21 == 1 && a20 == 1) && 15 <= a8)) || ((a21 <= 0 && a17 == 1) && a20 == 1)) || (((a20 <= 0 && a21 <= 0) && a17 == 1) && a16 <= 4)) || (((a20 <= 0 && 14 <= a8) && a21 == 1) && a16 <= 5)) || (((14 <= a8 && a21 == 1) && a16 <= 5) && a20 == 1)) || ((a16 == 6 && a21 <= 0) && a20 == 1)) || ((a21 == 1 && a16 <= 4) && a20 == 1)) || ((((a12 == 8 && a16 == 6) && a21 == 1) && a17 == 1) && a20 == 1)) || (((a20 <= 0 && a21 == 1) && a16 <= 5) && a16 <= 4) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((((a21 <= 0 && a16 <= 4) && a20 == 1) || (((a20 <= 0 && a16 == 6) && a21 == 1) && 15 <= a8)) || ((a21 == 1 && a20 == 1) && 15 <= a8)) || ((a21 <= 0 && a17 == 1) && a20 == 1)) || (((a20 <= 0 && a21 <= 0) && a17 == 1) && a16 <= 4)) || (((a20 <= 0 && 14 <= a8) && a21 == 1) && a16 <= 5)) || (((14 <= a8 && a21 == 1) && a16 <= 5) && a20 == 1)) || ((a16 == 6 && a21 <= 0) && a20 == 1)) || ((a21 == 1 && a16 <= 4) && a20 == 1)) || ((((a12 == 8 && a16 == 6) && a21 == 1) && a17 == 1) && a20 == 1)) || (((a20 <= 0 && a21 == 1) && a16 <= 5) && a16 <= 4) RESULT: Ultimate proved your program to be correct! [2021-11-20 06:01:54,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c4f552-748a-4968-b3a5-5c9d97466fac/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE