./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label32.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 60c0fa34c18dde6742c3bd779d2643fe781c7455d58a961a280a354d3d1e679c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:45:53,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:45:53,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:45:53,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:45:53,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:45:53,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:45:53,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:45:53,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:45:53,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:45:53,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:45:53,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:45:53,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:45:53,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:45:53,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:45:53,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:45:53,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:45:53,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:45:53,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:45:53,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:45:53,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:45:53,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:45:53,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:45:53,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:45:53,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:45:53,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:45:53,209 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:45:53,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:45:53,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:45:53,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:45:53,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:45:53,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:45:53,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:45:53,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:45:53,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:45:53,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:45:53,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:45:53,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:45:53,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:45:53,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:45:53,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:45:53,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:45:53,222 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:45:53,251 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:45:53,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:45:53,251 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:45:53,252 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:45:53,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:45:53,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:45:53,257 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:45:53,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:45:53,258 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:45:53,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:45:53,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:45:53,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:45:53,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:45:53,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:45:53,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:45:53,261 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:45:53,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:45:53,261 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:45:53,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:45:53,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:45:53,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:45:53,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:45:53,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:45:53,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:45:53,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:45:53,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:45:53,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:45:53,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:45:53,264 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:45:53,265 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:45:53,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:45:53,266 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:45:53,266 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_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60c0fa34c18dde6742c3bd779d2643fe781c7455d58a961a280a354d3d1e679c [2021-10-21 19:45:53,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:45:53,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:45:53,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:45:53,574 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:45:53,575 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:45:53,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/eca-rers2012/Problem14_label32.c [2021-10-21 19:45:53,655 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/data/dba144147/aaed61b0e4da440380281b0fb5fb3549/FLAGc10f6665a [2021-10-21 19:45:54,267 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:45:54,268 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/sv-benchmarks/c/eca-rers2012/Problem14_label32.c [2021-10-21 19:45:54,288 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/data/dba144147/aaed61b0e4da440380281b0fb5fb3549/FLAGc10f6665a [2021-10-21 19:45:54,501 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/data/dba144147/aaed61b0e4da440380281b0fb5fb3549 [2021-10-21 19:45:54,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:45:54,509 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:45:54,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:45:54,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:45:54,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:45:54,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:45:54" (1/1) ... [2021-10-21 19:45:54,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7513f309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:54, skipping insertion in model container [2021-10-21 19:45:54,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:45:54" (1/1) ... [2021-10-21 19:45:54,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:45:54,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:45:54,853 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/sv-benchmarks/c/eca-rers2012/Problem14_label32.c[5661,5674] [2021-10-21 19:45:55,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:45:55,096 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:45:55,123 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/sv-benchmarks/c/eca-rers2012/Problem14_label32.c[5661,5674] [2021-10-21 19:45:55,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:45:55,268 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:45:55,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:55 WrapperNode [2021-10-21 19:45:55,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:45:55,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:45:55,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:45:55,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:45:55,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:55" (1/1) ... [2021-10-21 19:45:55,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:55" (1/1) ... [2021-10-21 19:45:55,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:45:55,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:45:55,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:45:55,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:45:55,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:55" (1/1) ... [2021-10-21 19:45:55,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:55" (1/1) ... [2021-10-21 19:45:55,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:55" (1/1) ... [2021-10-21 19:45:55,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:55" (1/1) ... [2021-10-21 19:45:55,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:55" (1/1) ... [2021-10-21 19:45:55,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:55" (1/1) ... [2021-10-21 19:45:55,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:55" (1/1) ... [2021-10-21 19:45:55,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:45:55,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:45:55,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:45:55,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:45:55,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:55" (1/1) ... [2021-10-21 19:45:55,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:45:55,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:55,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:55,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:45:55,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:45:55,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:45:55,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:45:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:45:57,077 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:45:57,078 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 19:45:57,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:45:57 BoogieIcfgContainer [2021-10-21 19:45:57,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:45:57,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:45:57,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:45:57,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:45:57,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:45:54" (1/3) ... [2021-10-21 19:45:57,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43426609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:45:57, skipping insertion in model container [2021-10-21 19:45:57,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:55" (2/3) ... [2021-10-21 19:45:57,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43426609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:45:57, skipping insertion in model container [2021-10-21 19:45:57,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:45:57" (3/3) ... [2021-10-21 19:45:57,093 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label32.c [2021-10-21 19:45:57,102 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:45:57,102 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:45:57,166 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:45:57,171 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:45:57,172 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:45:57,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:45:57,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-21 19:45:57,201 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:45:57,202 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:45:57,202 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:45:57,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:57,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1246856209, now seen corresponding path program 1 times [2021-10-21 19:45:57,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:57,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235740367] [2021-10-21 19:45:57,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:57,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:57,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:45:57,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:57,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235740367] [2021-10-21 19:45:57,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235740367] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:45:57,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:45:57,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:45:57,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510731088] [2021-10-21 19:45:57,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:45:57,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:57,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:45:57,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:45:57,585 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:45:58,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:58,553 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2021-10-21 19:45:58,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:45:58,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2021-10-21 19:45:58,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:45:58,570 INFO L225 Difference]: With dead ends: 669 [2021-10-21 19:45:58,570 INFO L226 Difference]: Without dead ends: 360 [2021-10-21 19:45:58,573 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:45:58,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-10-21 19:45:58,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-10-21 19:45:58,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.6378830083565459) internal successors, (588), 359 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:45:58,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions. [2021-10-21 19:45:58,650 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 55 [2021-10-21 19:45:58,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:45:58,650 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions. [2021-10-21 19:45:58,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:45:58,651 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions. [2021-10-21 19:45:58,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-10-21 19:45:58,657 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:45:58,657 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 19:45:58,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:45:58,658 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:45:58,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:58,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1256473308, now seen corresponding path program 1 times [2021-10-21 19:45:58,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:58,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073978202] [2021-10-21 19:45:58,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:58,659 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:58,832 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:45:58,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:58,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073978202] [2021-10-21 19:45:58,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073978202] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:45:58,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:45:58,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:45:58,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030419494] [2021-10-21 19:45:58,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:45:58,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:58,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:45:58,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:45:58,837 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:45:59,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:45:59,578 INFO L93 Difference]: Finished difference Result 1074 states and 1759 transitions. [2021-10-21 19:45:59,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:45:59,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-10-21 19:45:59,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:45:59,584 INFO L225 Difference]: With dead ends: 1074 [2021-10-21 19:45:59,585 INFO L226 Difference]: Without dead ends: 716 [2021-10-21 19:45:59,587 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:45:59,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-10-21 19:45:59,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 538. [2021-10-21 19:45:59,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4934823091247673) internal successors, (802), 537 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:45:59,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 802 transitions. [2021-10-21 19:45:59,627 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 802 transitions. Word has length 120 [2021-10-21 19:45:59,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:45:59,629 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 802 transitions. [2021-10-21 19:45:59,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:45:59,630 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 802 transitions. [2021-10-21 19:45:59,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-10-21 19:45:59,654 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:45:59,654 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:45:59,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:45:59,655 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:45:59,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:59,655 INFO L82 PathProgramCache]: Analyzing trace with hash 144561951, now seen corresponding path program 1 times [2021-10-21 19:45:59,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:59,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80522435] [2021-10-21 19:45:59,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:59,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:59,865 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:45:59,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:45:59,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80522435] [2021-10-21 19:45:59,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80522435] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:45:59,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:45:59,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:45:59,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577872450] [2021-10-21 19:45:59,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:45:59,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:45:59,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:45:59,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:45:59,869 INFO L87 Difference]: Start difference. First operand 538 states and 802 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:00,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:00,906 INFO L93 Difference]: Finished difference Result 1430 states and 2030 transitions. [2021-10-21 19:46:00,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:46:00,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-10-21 19:46:00,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:00,913 INFO L225 Difference]: With dead ends: 1430 [2021-10-21 19:46:00,913 INFO L226 Difference]: Without dead ends: 894 [2021-10-21 19:46:00,914 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:46:00,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-10-21 19:46:00,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2021-10-21 19:46:00,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.3370660694288914) internal successors, (1194), 893 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:00,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2021-10-21 19:46:00,948 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 134 [2021-10-21 19:46:00,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:00,948 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2021-10-21 19:46:00,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:00,949 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2021-10-21 19:46:00,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-10-21 19:46:00,954 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:00,954 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 19:46:00,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:46:00,954 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:00,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:00,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1128249196, now seen corresponding path program 1 times [2021-10-21 19:46:00,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:00,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429128031] [2021-10-21 19:46:00,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:00,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:01,072 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-21 19:46:01,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:01,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429128031] [2021-10-21 19:46:01,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429128031] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:01,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:46:01,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:46:01,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290189045] [2021-10-21 19:46:01,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:46:01,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:01,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:46:01,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:46:01,075 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:01,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:01,875 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2021-10-21 19:46:01,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:46:01,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 214 [2021-10-21 19:46:01,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:01,883 INFO L225 Difference]: With dead ends: 1993 [2021-10-21 19:46:01,883 INFO L226 Difference]: Without dead ends: 1072 [2021-10-21 19:46:01,885 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:46:01,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-10-21 19:46:01,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2021-10-21 19:46:01,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1802054154995332) internal successors, (1264), 1071 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:01,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2021-10-21 19:46:01,916 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 214 [2021-10-21 19:46:01,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:01,917 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2021-10-21 19:46:01,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:01,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2021-10-21 19:46:01,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-10-21 19:46:01,920 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:01,921 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 19:46:01,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 19:46:01,921 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:01,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:01,922 INFO L82 PathProgramCache]: Analyzing trace with hash 651817072, now seen corresponding path program 1 times [2021-10-21 19:46:01,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:01,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131589386] [2021-10-21 19:46:01,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:01,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:02,071 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 105 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:46:02,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:02,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131589386] [2021-10-21 19:46:02,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131589386] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:46:02,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851527587] [2021-10-21 19:46:02,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:02,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:46:02,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:46:02,075 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:46:02,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:46:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:02,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:46:02,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:46:02,980 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-21 19:46:02,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851527587] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:02,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:46:02,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-10-21 19:46:02,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600774900] [2021-10-21 19:46:02,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:46:02,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:02,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:46:02,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:46:02,983 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:03,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:03,579 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions. [2021-10-21 19:46:03,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:46:03,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 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 226 [2021-10-21 19:46:03,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:03,587 INFO L225 Difference]: With dead ends: 2320 [2021-10-21 19:46:03,588 INFO L226 Difference]: Without dead ends: 1250 [2021-10-21 19:46:03,589 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.1ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:46:03,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-10-21 19:46:03,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2021-10-21 19:46:03,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1671335200746966) internal successors, (1250), 1071 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:03,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2021-10-21 19:46:03,630 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 226 [2021-10-21 19:46:03,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:03,630 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2021-10-21 19:46:03,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:03,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2021-10-21 19:46:03,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-10-21 19:46:03,634 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:03,635 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 19:46:03,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:03,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:46:03,849 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:03,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:03,849 INFO L82 PathProgramCache]: Analyzing trace with hash -12359337, now seen corresponding path program 1 times [2021-10-21 19:46:03,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:03,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091636652] [2021-10-21 19:46:03,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:03,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:03,955 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:46:03,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:03,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091636652] [2021-10-21 19:46:03,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091636652] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:03,956 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:46:03,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:46:03,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109265782] [2021-10-21 19:46:03,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:46:03,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:03,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:46:03,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:46:03,959 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:04,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:04,609 INFO L93 Difference]: Finished difference Result 2854 states and 3362 transitions. [2021-10-21 19:46:04,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:46:04,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 229 [2021-10-21 19:46:04,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:04,619 INFO L225 Difference]: With dead ends: 2854 [2021-10-21 19:46:04,619 INFO L226 Difference]: Without dead ends: 1784 [2021-10-21 19:46:04,621 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:46:04,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-10-21 19:46:04,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2021-10-21 19:46:04,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1364485981308412) internal successors, (1824), 1605 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:04,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1824 transitions. [2021-10-21 19:46:04,661 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1824 transitions. Word has length 229 [2021-10-21 19:46:04,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:04,661 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1824 transitions. [2021-10-21 19:46:04,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:04,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1824 transitions. [2021-10-21 19:46:04,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-10-21 19:46:04,668 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:04,668 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:46:04,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 19:46:04,669 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:04,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:04,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1750793281, now seen corresponding path program 1 times [2021-10-21 19:46:04,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:04,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702972717] [2021-10-21 19:46:04,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:04,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:04,922 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-10-21 19:46:04,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:04,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702972717] [2021-10-21 19:46:04,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702972717] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:04,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:46:04,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:46:04,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074584170] [2021-10-21 19:46:04,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:46:04,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:04,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:46:04,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:46:04,926 INFO L87 Difference]: Start difference. First operand 1606 states and 1824 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:05,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:05,650 INFO L93 Difference]: Finished difference Result 3268 states and 3727 transitions. [2021-10-21 19:46:05,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:46:05,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 346 [2021-10-21 19:46:05,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:05,661 INFO L225 Difference]: With dead ends: 3268 [2021-10-21 19:46:05,661 INFO L226 Difference]: Without dead ends: 1784 [2021-10-21 19:46:05,663 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:46:05,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-10-21 19:46:05,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2021-10-21 19:46:05,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.0909657320872275) internal successors, (1751), 1605 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:05,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1751 transitions. [2021-10-21 19:46:05,732 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1751 transitions. Word has length 346 [2021-10-21 19:46:05,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:05,734 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1751 transitions. [2021-10-21 19:46:05,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:05,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1751 transitions. [2021-10-21 19:46:05,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2021-10-21 19:46:05,744 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:05,744 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-21 19:46:05,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 19:46:05,745 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:05,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:05,746 INFO L82 PathProgramCache]: Analyzing trace with hash -2009842537, now seen corresponding path program 1 times [2021-10-21 19:46:05,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:05,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244421637] [2021-10-21 19:46:05,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:05,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:05,995 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 417 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-21 19:46:05,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:05,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244421637] [2021-10-21 19:46:05,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244421637] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:05,996 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:46:05,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:46:05,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225295829] [2021-10-21 19:46:05,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:46:05,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:05,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:46:05,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:46:06,000 INFO L87 Difference]: Start difference. First operand 1606 states and 1751 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:06,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:06,570 INFO L93 Difference]: Finished difference Result 3922 states and 4309 transitions. [2021-10-21 19:46:06,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:46:06,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 441 [2021-10-21 19:46:06,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:06,584 INFO L225 Difference]: With dead ends: 3922 [2021-10-21 19:46:06,585 INFO L226 Difference]: Without dead ends: 2496 [2021-10-21 19:46:06,588 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:46:06,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-10-21 19:46:06,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 1962. [2021-10-21 19:46:06,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.075981642019378) internal successors, (2110), 1961 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:06,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2110 transitions. [2021-10-21 19:46:06,639 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2110 transitions. Word has length 441 [2021-10-21 19:46:06,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:06,640 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2110 transitions. [2021-10-21 19:46:06,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:06,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2110 transitions. [2021-10-21 19:46:06,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2021-10-21 19:46:06,651 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:06,651 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:46:06,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-21 19:46:06,652 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:06,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:06,653 INFO L82 PathProgramCache]: Analyzing trace with hash 394896990, now seen corresponding path program 1 times [2021-10-21 19:46:06,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:06,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766119917] [2021-10-21 19:46:06,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:06,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:06,885 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 417 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-21 19:46:06,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:06,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766119917] [2021-10-21 19:46:06,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766119917] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:06,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:46:06,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:46:06,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444639360] [2021-10-21 19:46:06,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:46:06,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:06,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:46:06,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:46:06,899 INFO L87 Difference]: Start difference. First operand 1962 states and 2110 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:07,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:07,476 INFO L93 Difference]: Finished difference Result 4456 states and 4861 transitions. [2021-10-21 19:46:07,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:46:07,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 448 [2021-10-21 19:46:07,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:07,495 INFO L225 Difference]: With dead ends: 4456 [2021-10-21 19:46:07,495 INFO L226 Difference]: Without dead ends: 2674 [2021-10-21 19:46:07,498 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:46:07,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-10-21 19:46:07,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2021-10-21 19:46:07,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.0819304152637486) internal successors, (2892), 2673 states have internal predecessors, (2892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:07,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2892 transitions. [2021-10-21 19:46:07,572 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2892 transitions. Word has length 448 [2021-10-21 19:46:07,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:07,573 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2892 transitions. [2021-10-21 19:46:07,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:07,573 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2892 transitions. [2021-10-21 19:46:07,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2021-10-21 19:46:07,577 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:07,578 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:46:07,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-21 19:46:07,579 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:07,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:07,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1030109879, now seen corresponding path program 1 times [2021-10-21 19:46:07,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:07,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648623986] [2021-10-21 19:46:07,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:07,580 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:07,802 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 531 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-21 19:46:07,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:07,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648623986] [2021-10-21 19:46:07,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648623986] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:07,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:46:07,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:46:07,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773686833] [2021-10-21 19:46:07,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:46:07,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:07,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:46:07,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:46:07,811 INFO L87 Difference]: Start difference. First operand 2674 states and 2892 transitions. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:08,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:08,401 INFO L93 Difference]: Finished difference Result 6414 states and 7027 transitions. [2021-10-21 19:46:08,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:46:08,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 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 489 [2021-10-21 19:46:08,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:08,423 INFO L225 Difference]: With dead ends: 6414 [2021-10-21 19:46:08,423 INFO L226 Difference]: Without dead ends: 3920 [2021-10-21 19:46:08,427 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:46:08,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2021-10-21 19:46:08,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2021-10-21 19:46:08,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.077743474600056) internal successors, (3840), 3563 states have internal predecessors, (3840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:08,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3840 transitions. [2021-10-21 19:46:08,528 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3840 transitions. Word has length 489 [2021-10-21 19:46:08,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:08,529 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3840 transitions. [2021-10-21 19:46:08,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:08,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3840 transitions. [2021-10-21 19:46:08,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2021-10-21 19:46:08,538 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:08,538 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:46:08,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-21 19:46:08,539 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:08,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:08,540 INFO L82 PathProgramCache]: Analyzing trace with hash -622088187, now seen corresponding path program 1 times [2021-10-21 19:46:08,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:08,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748451620] [2021-10-21 19:46:08,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:08,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:08,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1605 backedges. 1134 proven. 104 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2021-10-21 19:46:08,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:08,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748451620] [2021-10-21 19:46:08,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748451620] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:46:08,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613361171] [2021-10-21 19:46:08,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:08,943 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:46:08,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:46:08,945 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:46:08,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 19:46:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:09,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:46:09,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:46:11,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1605 backedges. 1161 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2021-10-21 19:46:11,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613361171] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:11,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:46:11,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-21 19:46:11,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534886108] [2021-10-21 19:46:11,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:46:11,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:11,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:46:11,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:46:11,637 INFO L87 Difference]: Start difference. First operand 3564 states and 3840 transitions. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:12,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:12,177 INFO L93 Difference]: Finished difference Result 7126 states and 7693 transitions. [2021-10-21 19:46:12,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:46:12,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 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 634 [2021-10-21 19:46:12,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:12,198 INFO L225 Difference]: With dead ends: 7126 [2021-10-21 19:46:12,199 INFO L226 Difference]: Without dead ends: 3742 [2021-10-21 19:46:12,203 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 29.6ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:46:12,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-10-21 19:46:12,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3386. [2021-10-21 19:46:12,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0744460856720828) internal successors, (3637), 3385 states have internal predecessors, (3637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:12,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3637 transitions. [2021-10-21 19:46:12,288 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3637 transitions. Word has length 634 [2021-10-21 19:46:12,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:12,289 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 3637 transitions. [2021-10-21 19:46:12,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:12,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3637 transitions. [2021-10-21 19:46:12,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2021-10-21 19:46:12,295 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:12,296 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:46:12,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:12,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:46:12,518 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:12,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:12,518 INFO L82 PathProgramCache]: Analyzing trace with hash -93445325, now seen corresponding path program 1 times [2021-10-21 19:46:12,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:12,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839068849] [2021-10-21 19:46:12,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:12,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:12,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1331 backedges. 907 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-21 19:46:12,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:12,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839068849] [2021-10-21 19:46:12,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839068849] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:46:12,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133641413] [2021-10-21 19:46:12,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:12,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:46:12,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:46:12,809 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:46:12,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 19:46:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:13,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:46:13,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:46:14,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1331 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2021-10-21 19:46:14,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133641413] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:14,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:46:14,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-21 19:46:14,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838083982] [2021-10-21 19:46:14,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:46:14,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:14,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:46:14,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:46:14,697 INFO L87 Difference]: Start difference. First operand 3386 states and 3637 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:15,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:15,148 INFO L93 Difference]: Finished difference Result 7304 states and 7863 transitions. [2021-10-21 19:46:15,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:46:15,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 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 644 [2021-10-21 19:46:15,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:15,167 INFO L225 Difference]: With dead ends: 7304 [2021-10-21 19:46:15,167 INFO L226 Difference]: Without dead ends: 3386 [2021-10-21 19:46:15,172 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 644 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.6ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:46:15,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2021-10-21 19:46:15,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3030. [2021-10-21 19:46:15,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.0732915153516012) internal successors, (3251), 3029 states have internal predecessors, (3251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:15,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3251 transitions. [2021-10-21 19:46:15,237 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3251 transitions. Word has length 644 [2021-10-21 19:46:15,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:15,239 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3251 transitions. [2021-10-21 19:46:15,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:15,239 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3251 transitions. [2021-10-21 19:46:15,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2021-10-21 19:46:15,247 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:15,248 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:46:15,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:15,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:46:15,465 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:15,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:15,465 INFO L82 PathProgramCache]: Analyzing trace with hash 2142213445, now seen corresponding path program 1 times [2021-10-21 19:46:15,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:15,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724941188] [2021-10-21 19:46:15,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:15,466 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:15,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1781 backedges. 1259 proven. 155 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2021-10-21 19:46:15,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:15,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724941188] [2021-10-21 19:46:15,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724941188] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:46:15,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081985994] [2021-10-21 19:46:15,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:15,849 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:46:15,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:46:15,850 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:46:15,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 19:46:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:16,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:46:16,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:46:18,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1781 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 1464 trivial. 0 not checked. [2021-10-21 19:46:18,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081985994] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:18,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:46:18,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-21 19:46:18,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458745372] [2021-10-21 19:46:18,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:46:18,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:18,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:46:18,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:46:18,221 INFO L87 Difference]: Start difference. First operand 3030 states and 3251 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:18,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:18,708 INFO L93 Difference]: Finished difference Result 6770 states and 7284 transitions. [2021-10-21 19:46:18,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:46:18,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 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 779 [2021-10-21 19:46:18,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:18,729 INFO L225 Difference]: With dead ends: 6770 [2021-10-21 19:46:18,729 INFO L226 Difference]: Without dead ends: 3920 [2021-10-21 19:46:18,733 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 782 GetRequests, 779 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:46:18,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2021-10-21 19:46:18,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2021-10-21 19:46:18,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.0673589671625034) internal successors, (3803), 3563 states have internal predecessors, (3803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:18,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3803 transitions. [2021-10-21 19:46:18,802 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3803 transitions. Word has length 779 [2021-10-21 19:46:18,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:18,803 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3803 transitions. [2021-10-21 19:46:18,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:18,804 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3803 transitions. [2021-10-21 19:46:18,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2021-10-21 19:46:18,813 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:18,813 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:46:18,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:19,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-21 19:46:19,029 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:19,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:19,029 INFO L82 PathProgramCache]: Analyzing trace with hash 264001507, now seen corresponding path program 1 times [2021-10-21 19:46:19,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:19,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768128192] [2021-10-21 19:46:19,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:19,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:19,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1841 backedges. 1319 proven. 155 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2021-10-21 19:46:19,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:19,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768128192] [2021-10-21 19:46:19,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768128192] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:46:19,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106598592] [2021-10-21 19:46:19,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:19,416 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:46:19,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:46:19,417 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:46:19,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-21 19:46:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:20,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:46:20,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:46:21,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1841 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2021-10-21 19:46:21,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106598592] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:21,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:46:21,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-21 19:46:21,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812528093] [2021-10-21 19:46:21,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:46:21,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:21,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:46:21,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:46:21,929 INFO L87 Difference]: Start difference. First operand 3564 states and 3803 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:22,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:22,338 INFO L93 Difference]: Finished difference Result 4100 states and 4358 transitions. [2021-10-21 19:46:22,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:46:22,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 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 791 [2021-10-21 19:46:22,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:22,358 INFO L225 Difference]: With dead ends: 4100 [2021-10-21 19:46:22,358 INFO L226 Difference]: Without dead ends: 4098 [2021-10-21 19:46:22,359 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 794 GetRequests, 791 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:46:22,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2021-10-21 19:46:22,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3386. [2021-10-21 19:46:22,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0638109305760708) internal successors, (3601), 3385 states have internal predecessors, (3601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:22,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3601 transitions. [2021-10-21 19:46:22,418 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3601 transitions. Word has length 791 [2021-10-21 19:46:22,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:22,419 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 3601 transitions. [2021-10-21 19:46:22,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:22,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3601 transitions. [2021-10-21 19:46:22,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2021-10-21 19:46:22,428 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:22,429 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:46:22,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:22,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-21 19:46:22,646 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:22,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:22,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1591492343, now seen corresponding path program 1 times [2021-10-21 19:46:22,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:22,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289465171] [2021-10-21 19:46:22,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:22,647 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:23,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1881 backedges. 1359 proven. 155 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2021-10-21 19:46:23,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:23,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289465171] [2021-10-21 19:46:23,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289465171] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:46:23,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116977730] [2021-10-21 19:46:23,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:23,044 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:46:23,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:46:23,049 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:46:23,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-21 19:46:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:24,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:46:24,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:46:25,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1881 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2021-10-21 19:46:25,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116977730] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:25,683 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:46:25,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-21 19:46:25,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899003459] [2021-10-21 19:46:25,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:46:25,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:25,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:46:25,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:46:25,685 INFO L87 Difference]: Start difference. First operand 3386 states and 3601 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:26,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:26,203 INFO L93 Difference]: Finished difference Result 7838 states and 8420 transitions. [2021-10-21 19:46:26,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:46:26,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 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 799 [2021-10-21 19:46:26,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:26,219 INFO L225 Difference]: With dead ends: 7838 [2021-10-21 19:46:26,220 INFO L226 Difference]: Without dead ends: 4632 [2021-10-21 19:46:26,224 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 802 GetRequests, 799 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.7ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:46:26,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-10-21 19:46:26,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4276. [2021-10-21 19:46:26,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.0736842105263158) internal successors, (4590), 4275 states have internal predecessors, (4590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:26,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4590 transitions. [2021-10-21 19:46:26,297 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4590 transitions. Word has length 799 [2021-10-21 19:46:26,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:26,298 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 4590 transitions. [2021-10-21 19:46:26,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:26,298 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4590 transitions. [2021-10-21 19:46:26,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 848 [2021-10-21 19:46:26,311 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:26,312 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:46:26,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:26,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-21 19:46:26,525 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:26,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:26,525 INFO L82 PathProgramCache]: Analyzing trace with hash -889722513, now seen corresponding path program 1 times [2021-10-21 19:46:26,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:26,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647182504] [2021-10-21 19:46:26,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:26,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:26,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2031 backedges. 1509 proven. 155 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2021-10-21 19:46:26,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:26,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647182504] [2021-10-21 19:46:26,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647182504] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:46:26,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694502738] [2021-10-21 19:46:26,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:26,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:46:26,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:46:26,981 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:46:27,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-21 19:46:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:28,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 1053 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:46:28,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:46:30,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2031 backedges. 1509 proven. 155 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2021-10-21 19:46:30,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694502738] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:46:30,470 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:46:30,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-21 19:46:30,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629561581] [2021-10-21 19:46:30,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:46:30,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:30,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:46:30,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:46:30,474 INFO L87 Difference]: Start difference. First operand 4276 states and 4590 transitions. Second operand has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:31,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:31,144 INFO L93 Difference]: Finished difference Result 9618 states and 10310 transitions. [2021-10-21 19:46:31,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:46:31,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 847 [2021-10-21 19:46:31,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:31,156 INFO L225 Difference]: With dead ends: 9618 [2021-10-21 19:46:31,156 INFO L226 Difference]: Without dead ends: 5522 [2021-10-21 19:46:31,161 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 850 GetRequests, 848 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:46:31,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2021-10-21 19:46:31,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 4988. [2021-10-21 19:46:31,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0691798676559054) internal successors, (5332), 4987 states have internal predecessors, (5332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:31,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5332 transitions. [2021-10-21 19:46:31,256 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5332 transitions. Word has length 847 [2021-10-21 19:46:31,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:31,257 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5332 transitions. [2021-10-21 19:46:31,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:31,258 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5332 transitions. [2021-10-21 19:46:31,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 938 [2021-10-21 19:46:31,271 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:31,272 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 19:46:31,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:31,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:46:31,501 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:31,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:31,501 INFO L82 PathProgramCache]: Analyzing trace with hash -674826845, now seen corresponding path program 1 times [2021-10-21 19:46:31,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:31,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607474065] [2021-10-21 19:46:31,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:31,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:31,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2533 backedges. 1685 proven. 93 refuted. 0 times theorem prover too weak. 755 trivial. 0 not checked. [2021-10-21 19:46:31,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:31,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607474065] [2021-10-21 19:46:31,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607474065] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:46:31,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065349883] [2021-10-21 19:46:31,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:31,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:46:31,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:46:31,921 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:46:31,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-21 19:46:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:33,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:46:33,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:46:36,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2533 backedges. 1778 proven. 0 refuted. 0 times theorem prover too weak. 755 trivial. 0 not checked. [2021-10-21 19:46:36,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065349883] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:36,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:46:36,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-21 19:46:36,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295798457] [2021-10-21 19:46:36,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:46:36,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:36,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:46:36,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:46:36,020 INFO L87 Difference]: Start difference. First operand 4988 states and 5332 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:36,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:36,572 INFO L93 Difference]: Finished difference Result 10152 states and 10848 transitions. [2021-10-21 19:46:36,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:46:36,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 937 [2021-10-21 19:46:36,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:36,583 INFO L225 Difference]: With dead ends: 10152 [2021-10-21 19:46:36,583 INFO L226 Difference]: Without dead ends: 5344 [2021-10-21 19:46:36,588 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 940 GetRequests, 936 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 19.5ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:46:36,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-10-21 19:46:36,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4988. [2021-10-21 19:46:36,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.068979346300381) internal successors, (5331), 4987 states have internal predecessors, (5331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:36,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5331 transitions. [2021-10-21 19:46:36,674 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5331 transitions. Word has length 937 [2021-10-21 19:46:36,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:36,675 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5331 transitions. [2021-10-21 19:46:36,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:36,676 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5331 transitions. [2021-10-21 19:46:36,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 939 [2021-10-21 19:46:36,689 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:36,691 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 19:46:36,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:46:36,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-21 19:46:36,917 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:36,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:36,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1725851432, now seen corresponding path program 1 times [2021-10-21 19:46:36,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:36,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258144064] [2021-10-21 19:46:36,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:36,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:37,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2726 backedges. 1875 proven. 0 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2021-10-21 19:46:37,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:37,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258144064] [2021-10-21 19:46:37,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258144064] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:37,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:46:37,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:46:37,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485074474] [2021-10-21 19:46:37,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:46:37,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:37,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:46:37,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:46:37,260 INFO L87 Difference]: Start difference. First operand 4988 states and 5331 transitions. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:37,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:37,669 INFO L93 Difference]: Finished difference Result 9618 states and 10301 transitions. [2021-10-21 19:46:37,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:46:37,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 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 938 [2021-10-21 19:46:37,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:37,678 INFO L225 Difference]: With dead ends: 9618 [2021-10-21 19:46:37,678 INFO L226 Difference]: Without dead ends: 4810 [2021-10-21 19:46:37,683 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:46:37,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-10-21 19:46:37,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2021-10-21 19:46:37,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0598877105427325) internal successors, (5097), 4809 states have internal predecessors, (5097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:37,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5097 transitions. [2021-10-21 19:46:37,812 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5097 transitions. Word has length 938 [2021-10-21 19:46:37,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:37,813 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 5097 transitions. [2021-10-21 19:46:37,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:37,813 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5097 transitions. [2021-10-21 19:46:37,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1034 [2021-10-21 19:46:37,828 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:37,829 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:46:37,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-21 19:46:37,829 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:37,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:37,830 INFO L82 PathProgramCache]: Analyzing trace with hash -86846660, now seen corresponding path program 1 times [2021-10-21 19:46:37,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:37,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180020322] [2021-10-21 19:46:37,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:37,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:38,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3320 backedges. 2162 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2021-10-21 19:46:38,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:38,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180020322] [2021-10-21 19:46:38,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180020322] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:38,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:46:38,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:46:38,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845505718] [2021-10-21 19:46:38,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:46:38,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:38,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:46:38,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:46:38,256 INFO L87 Difference]: Start difference. First operand 4810 states and 5097 transitions. Second operand has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:38,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:38,778 INFO L93 Difference]: Finished difference Result 9440 states and 10013 transitions. [2021-10-21 19:46:38,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:46:38,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 0 states have call successors, (0), 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 1033 [2021-10-21 19:46:38,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:38,788 INFO L225 Difference]: With dead ends: 9440 [2021-10-21 19:46:38,788 INFO L226 Difference]: Without dead ends: 4810 [2021-10-21 19:46:38,793 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:46:38,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-10-21 19:46:38,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2021-10-21 19:46:38,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0515699729673529) internal successors, (5057), 4809 states have internal predecessors, (5057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:38,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5057 transitions. [2021-10-21 19:46:38,951 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5057 transitions. Word has length 1033 [2021-10-21 19:46:38,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:38,952 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 5057 transitions. [2021-10-21 19:46:38,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:38,953 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5057 transitions. [2021-10-21 19:46:38,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1058 [2021-10-21 19:46:38,968 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:38,968 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:46:38,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-21 19:46:38,969 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:38,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:38,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1257167235, now seen corresponding path program 1 times [2021-10-21 19:46:38,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:38,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287219681] [2021-10-21 19:46:38,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:38,971 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:39,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3869 backedges. 1873 proven. 0 refuted. 0 times theorem prover too weak. 1996 trivial. 0 not checked. [2021-10-21 19:46:39,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:39,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287219681] [2021-10-21 19:46:39,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287219681] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:39,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:46:39,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 19:46:39,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342503591] [2021-10-21 19:46:39,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:46:39,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:39,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:46:39,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:46:39,538 INFO L87 Difference]: Start difference. First operand 4810 states and 5057 transitions. Second operand has 7 states, 7 states have (on average 53.142857142857146) internal successors, (372), 6 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:40,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:40,326 INFO L93 Difference]: Finished difference Result 9668 states and 10166 transitions. [2021-10-21 19:46:40,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:46:40,327 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.142857142857146) internal successors, (372), 6 states have internal predecessors, (372), 0 states have call successors, (0), 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 1057 [2021-10-21 19:46:40,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:40,337 INFO L225 Difference]: With dead ends: 9668 [2021-10-21 19:46:40,337 INFO L226 Difference]: Without dead ends: 4988 [2021-10-21 19:46:40,343 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.6ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:46:40,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-10-21 19:46:40,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2021-10-21 19:46:40,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0428363485132044) internal successors, (5015), 4809 states have internal predecessors, (5015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:40,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5015 transitions. [2021-10-21 19:46:40,426 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5015 transitions. Word has length 1057 [2021-10-21 19:46:40,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:40,427 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 5015 transitions. [2021-10-21 19:46:40,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.142857142857146) internal successors, (372), 6 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:40,428 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5015 transitions. [2021-10-21 19:46:40,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1090 [2021-10-21 19:46:40,449 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:46:40,450 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 19:46:40,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-21 19:46:40,451 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:46:40,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:40,452 INFO L82 PathProgramCache]: Analyzing trace with hash -637323310, now seen corresponding path program 1 times [2021-10-21 19:46:40,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:40,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373809075] [2021-10-21 19:46:40,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:40,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:40,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3768 backedges. 1299 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2021-10-21 19:46:40,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:40,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373809075] [2021-10-21 19:46:40,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373809075] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:40,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:46:40,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:46:40,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000161026] [2021-10-21 19:46:40,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:46:40,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:40,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:46:40,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:46:40,973 INFO L87 Difference]: Start difference. First operand 4810 states and 5015 transitions. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:41,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:41,512 INFO L93 Difference]: Finished difference Result 9616 states and 10030 transitions. [2021-10-21 19:46:41,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:46:41,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 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 1089 [2021-10-21 19:46:41,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:46:41,515 INFO L225 Difference]: With dead ends: 9616 [2021-10-21 19:46:41,515 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:46:41,523 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:46:41,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:46:41,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:46:41,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:41,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:46:41,524 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1089 [2021-10-21 19:46:41,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:46:41,525 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:46:41,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:41,526 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:46:41,526 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:46:41,528 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:46:41,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-21 19:46:41,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:46:41,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:46:41,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:46:41,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:46:42,358 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-21 19:46:42,359 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-21 19:46:42,359 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-21 19:46:42,359 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-21 19:46:42,359 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-21 19:46:42,359 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,359 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,359 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,359 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-21 19:46:42,359 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-21 19:46:42,359 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-21 19:46:42,360 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-21 19:46:42,360 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-21 19:46:42,360 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-21 19:46:42,360 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-21 19:46:42,360 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-21 19:46:42,360 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,360 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,360 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,360 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-21 19:46:42,360 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-21 19:46:42,360 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-21 19:46:42,361 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-21 19:46:42,361 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-21 19:46:42,361 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-21 19:46:42,361 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-21 19:46:42,361 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-21 19:46:42,361 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-21 19:46:42,361 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,361 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,361 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,361 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-21 19:46:42,361 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-21 19:46:42,362 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-21 19:46:42,362 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-21 19:46:42,362 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-21 19:46:42,362 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-21 19:46:42,362 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-21 19:46:42,362 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,362 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,362 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,362 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-21 19:46:42,362 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-21 19:46:42,362 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-21 19:46:42,363 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-21 19:46:42,363 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-21 19:46:42,363 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-21 19:46:42,363 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-21 19:46:42,363 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-21 19:46:42,363 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,363 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,363 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,363 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-21 19:46:42,363 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-21 19:46:42,363 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-21 19:46:42,364 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-21 19:46:42,364 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-21 19:46:42,364 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-21 19:46:42,364 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-21 19:46:42,364 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-21 19:46:42,364 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,364 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,364 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,364 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-21 19:46:42,364 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-21 19:46:42,365 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-21 19:46:42,365 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-21 19:46:42,365 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-21 19:46:42,365 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-21 19:46:42,365 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-21 19:46:42,365 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-21 19:46:42,365 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-21 19:46:42,365 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,365 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,365 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,365 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-21 19:46:42,366 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-21 19:46:42,366 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-21 19:46:42,366 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-21 19:46:42,366 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-21 19:46:42,366 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-21 19:46:42,366 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-21 19:46:42,366 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:46:42,366 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,366 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,366 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,366 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-21 19:46:42,367 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-21 19:46:42,367 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-21 19:46:42,367 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-21 19:46:42,367 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-21 19:46:42,367 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-21 19:46:42,367 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-21 19:46:42,367 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-21 19:46:42,367 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-21 19:46:42,367 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,367 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,367 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,368 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-21 19:46:42,368 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-21 19:46:42,368 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-21 19:46:42,368 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-21 19:46:42,368 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-21 19:46:42,368 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-21 19:46:42,368 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-21 19:46:42,368 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-21 19:46:42,368 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,368 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,368 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,369 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-21 19:46:42,369 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-21 19:46:42,369 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-21 19:46:42,369 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:46:42,369 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-21 19:46:42,369 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 179) no Hoare annotation was computed. [2021-10-21 19:46:42,369 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-21 19:46:42,369 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-21 19:46:42,369 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-21 19:46:42,369 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-21 19:46:42,369 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,370 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,370 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,370 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-21 19:46:42,370 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-21 19:46:42,370 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-21 19:46:42,370 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-21 19:46:42,370 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-21 19:46:42,370 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-21 19:46:42,370 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-21 19:46:42,370 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-21 19:46:42,371 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,371 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,371 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,371 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-21 19:46:42,371 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-21 19:46:42,371 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-21 19:46:42,371 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-21 19:46:42,371 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-21 19:46:42,371 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-21 19:46:42,371 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-21 19:46:42,371 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-21 19:46:42,374 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,374 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,375 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,375 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-21 19:46:42,375 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-21 19:46:42,375 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-21 19:46:42,375 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-21 19:46:42,375 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-21 19:46:42,375 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-21 19:46:42,376 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-21 19:46:42,376 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-21 19:46:42,376 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,376 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,376 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,376 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-21 19:46:42,377 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-21 19:46:42,377 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-21 19:46:42,377 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-21 19:46:42,377 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-21 19:46:42,377 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-21 19:46:42,377 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-21 19:46:42,377 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-21 19:46:42,378 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,378 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,378 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,378 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-21 19:46:42,378 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-21 19:46:42,378 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-21 19:46:42,378 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-21 19:46:42,379 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-21 19:46:42,379 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-21 19:46:42,379 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-21 19:46:42,379 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-21 19:46:42,379 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,379 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,380 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-21 19:46:42,380 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-21 19:46:42,380 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-21 19:46:42,380 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-21 19:46:42,380 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-21 19:46:42,380 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-21 19:46:42,380 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-21 19:46:42,381 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-21 19:46:42,381 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,381 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,381 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-21 19:46:42,381 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:46:42,381 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-21 19:46:42,381 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-21 19:46:42,382 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-21 19:46:42,382 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-21 19:46:42,382 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-21 19:46:42,382 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,382 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,383 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse2 (<= ~a12~0 11)) (.cse4 (<= 9 ~a21~0)) (.cse5 (<= ~a21~0 9)) (.cse1 (<= ~a15~0 5)) (.cse0 (= ~a24~0 1)) (.cse3 (< 0 (+ ~a12~0 43)))) (or (and (<= 7 ~a15~0) .cse0) (and (<= (+ 49 ~a12~0) 0) .cse1) (and .cse2 .cse0 .cse3) (and .cse2 .cse4 .cse5 .cse0) (and .cse4 .cse5 .cse0 (< 80 ~a12~0)) (and .cse0 (<= 8 ~a21~0) (<= ~a21~0 8) .cse3) (and .cse0 .cse1) (and .cse0 (<= ~a21~0 6) .cse3))) [2021-10-21 19:46:42,383 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-21 19:46:42,383 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-21 19:46:42,383 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-21 19:46:42,383 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-21 19:46:42,383 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-21 19:46:42,384 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-21 19:46:42,384 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-21 19:46:42,384 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-21 19:46:42,384 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,384 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,384 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-21 19:46:42,385 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-21 19:46:42,385 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-21 19:46:42,385 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-21 19:46:42,385 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-21 19:46:42,385 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-21 19:46:42,385 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-21 19:46:42,386 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-21 19:46:42,386 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,386 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,386 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:46:42,386 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-21 19:46:42,386 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-21 19:46:42,386 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-21 19:46:42,387 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-21 19:46:42,387 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-21 19:46:42,387 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-21 19:46:42,387 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,387 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,387 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-21 19:46:42,388 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,388 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-21 19:46:42,388 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse2 (<= ~a12~0 11)) (.cse4 (<= 9 ~a21~0)) (.cse5 (<= ~a21~0 9)) (.cse1 (<= ~a15~0 5)) (.cse0 (= ~a24~0 1)) (.cse3 (< 0 (+ ~a12~0 43)))) (or (and (<= 7 ~a15~0) .cse0) (and (<= (+ 49 ~a12~0) 0) .cse1) (and .cse2 .cse0 .cse3) (and .cse2 .cse4 .cse5 .cse0) (and .cse4 .cse5 .cse0 (< 80 ~a12~0)) (and .cse0 (<= 8 ~a21~0) (<= ~a21~0 8) .cse3) (and .cse0 .cse1) (and .cse0 (<= ~a21~0 6) .cse3))) [2021-10-21 19:46:42,388 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-21 19:46:42,388 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-21 19:46:42,388 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-21 19:46:42,389 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-21 19:46:42,389 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-21 19:46:42,389 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-21 19:46:42,389 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-21 19:46:42,389 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-21 19:46:42,389 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-21 19:46:42,389 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,390 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,390 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:46:42,390 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-21 19:46:42,390 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-21 19:46:42,390 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-21 19:46:42,390 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-21 19:46:42,395 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:46:42,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:46:42 BoogieIcfgContainer [2021-10-21 19:46:42,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:46:42,413 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:46:42,413 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:46:42,414 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:46:42,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:45:57" (3/4) ... [2021-10-21 19:46:42,417 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:46:42,463 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-21 19:46:42,466 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 19:46:42,468 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:46:42,470 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:46:42,649 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:46:42,650 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:46:42,651 INFO L168 Benchmark]: Toolchain (without parser) took 48141.85 ms. Allocated memory was 88.1 MB in the beginning and 815.8 MB in the end (delta: 727.7 MB). Free memory was 50.2 MB in the beginning and 349.3 MB in the end (delta: -299.1 MB). Peak memory consumption was 427.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:42,652 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory was 68.8 MB in the beginning and 68.7 MB in the end (delta: 60.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:46:42,653 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.71 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.1 MB in the beginning and 61.8 MB in the end (delta: -11.8 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:42,653 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.24 ms. Allocated memory is still 107.0 MB. Free memory was 61.8 MB in the beginning and 52.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:42,654 INFO L168 Benchmark]: Boogie Preprocessor took 151.82 ms. Allocated memory is still 107.0 MB. Free memory was 52.1 MB in the beginning and 46.4 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:42,654 INFO L168 Benchmark]: RCFGBuilder took 1563.84 ms. Allocated memory is still 107.0 MB. Free memory was 46.1 MB in the beginning and 49.1 MB in the end (delta: -3.0 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:42,655 INFO L168 Benchmark]: TraceAbstraction took 45328.22 ms. Allocated memory was 107.0 MB in the beginning and 815.8 MB in the end (delta: 708.8 MB). Free memory was 48.5 MB in the beginning and 368.2 MB in the end (delta: -319.7 MB). Peak memory consumption was 387.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:42,655 INFO L168 Benchmark]: Witness Printer took 236.77 ms. Allocated memory is still 815.8 MB. Free memory was 368.2 MB in the beginning and 349.3 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:42,657 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory was 68.8 MB in the beginning and 68.7 MB in the end (delta: 60.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 757.71 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.1 MB in the beginning and 61.8 MB in the end (delta: -11.8 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.24 ms. Allocated memory is still 107.0 MB. Free memory was 61.8 MB in the beginning and 52.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 151.82 ms. Allocated memory is still 107.0 MB. Free memory was 52.1 MB in the beginning and 46.4 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1563.84 ms. Allocated memory is still 107.0 MB. Free memory was 46.1 MB in the beginning and 49.1 MB in the end (delta: -3.0 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 45328.22 ms. Allocated memory was 107.0 MB in the beginning and 815.8 MB in the end (delta: 708.8 MB). Free memory was 48.5 MB in the beginning and 368.2 MB in the end (delta: -319.7 MB). Peak memory consumption was 387.6 MB. Max. memory is 16.1 GB. * Witness Printer took 236.77 ms. Allocated memory is still 815.8 MB. Free memory was 368.2 MB in the beginning and 349.3 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 179]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 45230.0ms, OverallIterations: 21, TraceHistogramMax: 10, EmptinessCheckTime: 211.9ms, AutomataDifference: 13542.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 828.7ms, InitialAbstractionConstructionTime: 16.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2501 SDtfs, 2230 SDslu, 124 SDs, 0 SdLazy, 10924 SolverSat, 1046 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9703.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5723 GetRequests, 5675 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 208.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4988occurred in iteration=16, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1439.3ms AutomataMinimizationTime, 21 MinimizatonAttempts, 4806 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 77 NumberOfFragments, 179 HoareAnnotationTreeSize, 3 FomulaSimplifications, 11094 FormulaSimplificationTreeSizeReduction, 207.4ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 6090 FormulaSimplificationTreeSizeReductionInter, 611.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 672.7ms SsaConstructionTime, 2306.0ms SatisfiabilityAnalysisTime, 17971.7ms InterpolantComputationTime, 17907 NumberOfCodeBlocks, 17907 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 17878 ConstructedInterpolants, 0 QuantifiedInterpolants, 44459 SizeOfPredicates, 0 NumberOfNonLiveVariables, 7204 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 29 InterpolantComputations, 20 PerfectInterpolantSequences, 42070/43217 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((7 <= a15 && a24 == 1) || (49 + a12 <= 0 && a15 <= 5)) || ((a12 <= 11 && a24 == 1) && 0 < a12 + 43)) || (((a12 <= 11 && 9 <= a21) && a21 <= 9) && a24 == 1)) || (((9 <= a21 && a21 <= 9) && a24 == 1) && 80 < a12)) || (((a24 == 1 && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || (a24 == 1 && a15 <= 5)) || ((a24 == 1 && a21 <= 6) && 0 < a12 + 43) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((7 <= a15 && a24 == 1) || (49 + a12 <= 0 && a15 <= 5)) || ((a12 <= 11 && a24 == 1) && 0 < a12 + 43)) || (((a12 <= 11 && 9 <= a21) && a21 <= 9) && a24 == 1)) || (((9 <= a21 && a21 <= 9) && a24 == 1) && 80 < a12)) || (((a24 == 1 && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || (a24 == 1 && a15 <= 5)) || ((a24 == 1 && a21 <= 6) && 0 < a12 + 43) RESULT: Ultimate proved your program to be correct! [2021-10-21 19:46:42,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d01816-8632-4ecd-994c-aafbe7681dbe/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...