./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9640ed6-de42-46e8-af17-78caaecbf686/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9640ed6-de42-46e8-af17-78caaecbf686/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9640ed6-de42-46e8-af17-78caaecbf686/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9640ed6-de42-46e8-af17-78caaecbf686/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9640ed6-de42-46e8-af17-78caaecbf686/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9640ed6-de42-46e8-af17-78caaecbf686/bin/uautomizer-ug76WZFUDN --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 39feee77bf576ea852c42114836a4ed3182237f56346991038306ebcfd74e257 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:38:08,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:38:08,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:38:08,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:38:08,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:38:08,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:38:08,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:38:08,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:38:08,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:38:08,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:38:08,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:38:08,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:38:08,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:38:08,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:38:08,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:38:08,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:38:08,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:38:08,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:38:08,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:38:08,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:38:08,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:38:08,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:38:08,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:38:08,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:38:08,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:38:08,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:38:08,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:38:08,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:38:08,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:38:08,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:38:08,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:38:08,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:38:08,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:38:08,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:38:08,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:38:08,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:38:08,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:38:08,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:38:08,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:38:08,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:38:08,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:38:08,242 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9640ed6-de42-46e8-af17-78caaecbf686/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 12:38:08,271 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:38:08,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:38:08,272 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:38:08,272 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:38:08,273 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:38:08,273 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:38:08,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:38:08,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:38:08,275 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:38:08,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:38:08,276 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:38:08,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:38:08,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:38:08,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:38:08,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:38:08,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:38:08,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:38:08,278 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:38:08,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:38:08,278 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:38:08,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:38:08,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:38:08,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:38:08,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:38:08,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:38:08,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:38:08,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:38:08,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:38:08,281 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:38:08,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:38:08,282 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:38:08,282 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:38:08,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:38:08,282 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_e9640ed6-de42-46e8-af17-78caaecbf686/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9640ed6-de42-46e8-af17-78caaecbf686/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39feee77bf576ea852c42114836a4ed3182237f56346991038306ebcfd74e257 [2022-11-20 12:38:08,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:38:08,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:38:08,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:38:08,667 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:38:08,668 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:38:08,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9640ed6-de42-46e8-af17-78caaecbf686/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2022-11-20 12:38:12,340 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:38:12,607 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:38:12,608 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2022-11-20 12:38:12,621 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9640ed6-de42-46e8-af17-78caaecbf686/bin/uautomizer-ug76WZFUDN/data/75976d5e4/da6bcf6ef1c143c3adebb42531a42416/FLAG8be85d94a [2022-11-20 12:38:12,644 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9640ed6-de42-46e8-af17-78caaecbf686/bin/uautomizer-ug76WZFUDN/data/75976d5e4/da6bcf6ef1c143c3adebb42531a42416 [2022-11-20 12:38:12,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:38:12,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:38:12,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:38:12,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:38:12,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:38:12,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:38:12" (1/1) ... [2022-11-20 12:38:12,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d7a750 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:12, skipping insertion in model container [2022-11-20 12:38:12,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:38:12" (1/1) ... [2022-11-20 12:38:12,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:38:12,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:38:12,987 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[919,932] [2022-11-20 12:38:13,000 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[1134,1147] [2022-11-20 12:38:13,024 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2208,2221] [2022-11-20 12:38:13,028 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2423,2436] [2022-11-20 12:38:13,033 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2918,2931] [2022-11-20 12:38:13,038 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3133,3146] [2022-11-20 12:38:13,046 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3435,3448] [2022-11-20 12:38:13,048 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3653,3666] [2022-11-20 12:38:13,052 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3929,3942] [2022-11-20 12:38:13,057 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4147,4160] [2022-11-20 12:38:13,063 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4717,4730] [2022-11-20 12:38:13,066 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4935,4948] [2022-11-20 12:38:13,172 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[15828,15841] [2022-11-20 12:38:13,180 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16046,16059] [2022-11-20 12:38:13,184 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16441,16454] [2022-11-20 12:38:13,187 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16659,16672] [2022-11-20 12:38:13,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:38:13,222 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:38:13,251 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[919,932] [2022-11-20 12:38:13,256 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[1134,1147] [2022-11-20 12:38:13,265 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2208,2221] [2022-11-20 12:38:13,269 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2423,2436] [2022-11-20 12:38:13,282 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2918,2931] [2022-11-20 12:38:13,284 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3133,3146] [2022-11-20 12:38:13,286 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3435,3448] [2022-11-20 12:38:13,290 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3653,3666] [2022-11-20 12:38:13,295 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3929,3942] [2022-11-20 12:38:13,297 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4147,4160] [2022-11-20 12:38:13,306 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4717,4730] [2022-11-20 12:38:13,308 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4935,4948] [2022-11-20 12:38:13,378 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[15828,15841] [2022-11-20 12:38:13,396 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16046,16059] [2022-11-20 12:38:13,400 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16441,16454] [2022-11-20 12:38:13,402 WARN L237 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_e9640ed6-de42-46e8-af17-78caaecbf686/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16659,16672] [2022-11-20 12:38:13,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:38:13,425 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:38:13,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:13 WrapperNode [2022-11-20 12:38:13,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:38:13,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:38:13,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:38:13,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:38:13,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:13" (1/1) ... [2022-11-20 12:38:13,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:13" (1/1) ... [2022-11-20 12:38:13,543 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 590 [2022-11-20 12:38:13,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:38:13,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:38:13,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:38:13,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:38:13,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:13" (1/1) ... [2022-11-20 12:38:13,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:13" (1/1) ... [2022-11-20 12:38:13,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:13" (1/1) ... [2022-11-20 12:38:13,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:13" (1/1) ... [2022-11-20 12:38:13,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:13" (1/1) ... [2022-11-20 12:38:13,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:13" (1/1) ... [2022-11-20 12:38:13,592 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:13" (1/1) ... [2022-11-20 12:38:13,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:13" (1/1) ... [2022-11-20 12:38:13,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:38:13,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:38:13,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:38:13,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:38:13,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:13" (1/1) ... [2022-11-20 12:38:13,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:38:13,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9640ed6-de42-46e8-af17-78caaecbf686/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:38:13,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9640ed6-de42-46e8-af17-78caaecbf686/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:38:13,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9640ed6-de42-46e8-af17-78caaecbf686/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:38:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:38:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:38:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:38:13,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:38:13,913 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:38:13,916 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:38:14,615 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:38:14,624 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:38:14,625 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:38:14,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:38:14 BoogieIcfgContainer [2022-11-20 12:38:14,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:38:14,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:38:14,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:38:14,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:38:14,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:38:12" (1/3) ... [2022-11-20 12:38:14,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa12fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:38:14, skipping insertion in model container [2022-11-20 12:38:14,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:13" (2/3) ... [2022-11-20 12:38:14,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa12fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:38:14, skipping insertion in model container [2022-11-20 12:38:14,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:38:14" (3/3) ... [2022-11-20 12:38:14,639 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2022-11-20 12:38:14,663 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:38:14,663 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-20 12:38:14,755 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:38:14,768 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@395565c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:38:14,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-20 12:38:14,783 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 103 states have (on average 1.912621359223301) internal successors, (197), 119 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:14,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 12:38:14,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:14,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:14,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:14,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:14,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1804934597, now seen corresponding path program 1 times [2022-11-20 12:38:14,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:14,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288794543] [2022-11-20 12:38:14,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:14,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:15,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:15,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:15,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288794543] [2022-11-20 12:38:15,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288794543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:15,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:15,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:38:15,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28166321] [2022-11-20 12:38:15,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:15,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:38:15,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:15,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:38:15,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:38:15,298 INFO L87 Difference]: Start difference. First operand has 120 states, 103 states have (on average 1.912621359223301) internal successors, (197), 119 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:15,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:15,686 INFO L93 Difference]: Finished difference Result 131 states and 205 transitions. [2022-11-20 12:38:15,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:38:15,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2022-11-20 12:38:15,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:15,710 INFO L225 Difference]: With dead ends: 131 [2022-11-20 12:38:15,710 INFO L226 Difference]: Without dead ends: 114 [2022-11-20 12:38:15,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:38:15,722 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 160 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:15,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 175 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:38:15,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-11-20 12:38:15,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-11-20 12:38:15,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 99 states have (on average 1.3636363636363635) internal successors, (135), 113 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:15,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 135 transitions. [2022-11-20 12:38:15,792 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 135 transitions. Word has length 7 [2022-11-20 12:38:15,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:15,793 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 135 transitions. [2022-11-20 12:38:15,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:15,794 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 135 transitions. [2022-11-20 12:38:15,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 12:38:15,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:15,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:15,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:38:15,795 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:15,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:15,798 INFO L85 PathProgramCache]: Analyzing trace with hash 118401710, now seen corresponding path program 1 times [2022-11-20 12:38:15,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:15,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312072561] [2022-11-20 12:38:15,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:15,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:16,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:16,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:16,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312072561] [2022-11-20 12:38:16,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312072561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:16,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:16,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:38:16,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675759474] [2022-11-20 12:38:16,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:16,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:38:16,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:16,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:38:16,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:38:16,089 INFO L87 Difference]: Start difference. First operand 114 states and 135 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:16,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:16,332 INFO L93 Difference]: Finished difference Result 114 states and 135 transitions. [2022-11-20 12:38:16,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:38:16,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2022-11-20 12:38:16,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:16,339 INFO L225 Difference]: With dead ends: 114 [2022-11-20 12:38:16,339 INFO L226 Difference]: Without dead ends: 109 [2022-11-20 12:38:16,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:38:16,342 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 34 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:16,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 268 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:38:16,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-20 12:38:16,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2022-11-20 12:38:16,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 95 states have (on average 1.2736842105263158) internal successors, (121), 108 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:16,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2022-11-20 12:38:16,366 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 8 [2022-11-20 12:38:16,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:16,367 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 121 transitions. [2022-11-20 12:38:16,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:16,367 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2022-11-20 12:38:16,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 12:38:16,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:16,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:16,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:38:16,369 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:16,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:16,374 INFO L85 PathProgramCache]: Analyzing trace with hash -639549266, now seen corresponding path program 1 times [2022-11-20 12:38:16,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:16,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416247093] [2022-11-20 12:38:16,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:16,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:16,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:16,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:16,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416247093] [2022-11-20 12:38:16,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416247093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:16,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:16,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:38:16,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594726609] [2022-11-20 12:38:16,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:16,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:38:16,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:16,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:38:16,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:38:16,527 INFO L87 Difference]: Start difference. First operand 109 states and 121 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:16,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:16,804 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2022-11-20 12:38:16,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:38:16,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-11-20 12:38:16,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:16,806 INFO L225 Difference]: With dead ends: 109 [2022-11-20 12:38:16,807 INFO L226 Difference]: Without dead ends: 107 [2022-11-20 12:38:16,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:38:16,808 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 93 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:16,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 101 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:38:16,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-20 12:38:16,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-11-20 12:38:16,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 94 states have (on average 1.2659574468085106) internal successors, (119), 106 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:16,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 119 transitions. [2022-11-20 12:38:16,820 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 119 transitions. Word has length 11 [2022-11-20 12:38:16,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:16,821 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 119 transitions. [2022-11-20 12:38:16,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:16,821 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 119 transitions. [2022-11-20 12:38:16,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 12:38:16,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:16,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:16,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:38:16,823 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:16,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:16,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1648813321, now seen corresponding path program 1 times [2022-11-20 12:38:16,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:16,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734553138] [2022-11-20 12:38:16,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:16,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:17,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:17,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:17,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734553138] [2022-11-20 12:38:17,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734553138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:17,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:17,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:38:17,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550729062] [2022-11-20 12:38:17,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:17,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:38:17,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:17,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:38:17,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:38:17,025 INFO L87 Difference]: Start difference. First operand 107 states and 119 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:17,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:17,189 INFO L93 Difference]: Finished difference Result 107 states and 119 transitions. [2022-11-20 12:38:17,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:38:17,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2022-11-20 12:38:17,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:17,191 INFO L225 Difference]: With dead ends: 107 [2022-11-20 12:38:17,192 INFO L226 Difference]: Without dead ends: 103 [2022-11-20 12:38:17,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:38:17,193 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 11 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:17,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 242 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:38:17,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-20 12:38:17,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-11-20 12:38:17,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 91 states have (on average 1.2637362637362637) internal successors, (115), 102 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:17,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 115 transitions. [2022-11-20 12:38:17,203 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 115 transitions. Word has length 12 [2022-11-20 12:38:17,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:17,204 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 115 transitions. [2022-11-20 12:38:17,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:17,205 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 115 transitions. [2022-11-20 12:38:17,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 12:38:17,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:17,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:17,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:38:17,207 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:17,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:17,208 INFO L85 PathProgramCache]: Analyzing trace with hash -411248735, now seen corresponding path program 1 times [2022-11-20 12:38:17,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:17,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670282696] [2022-11-20 12:38:17,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:17,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:17,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:17,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:17,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670282696] [2022-11-20 12:38:17,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670282696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:17,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:17,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:38:17,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102318573] [2022-11-20 12:38:17,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:17,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:38:17,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:17,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:38:17,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:38:17,313 INFO L87 Difference]: Start difference. First operand 103 states and 115 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:17,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:17,612 INFO L93 Difference]: Finished difference Result 121 states and 135 transitions. [2022-11-20 12:38:17,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:38:17,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2022-11-20 12:38:17,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:17,614 INFO L225 Difference]: With dead ends: 121 [2022-11-20 12:38:17,614 INFO L226 Difference]: Without dead ends: 119 [2022-11-20 12:38:17,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:38:17,616 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 112 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:17,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 111 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:38:17,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-20 12:38:17,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 101. [2022-11-20 12:38:17,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 90 states have (on average 1.2555555555555555) internal successors, (113), 100 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:17,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 113 transitions. [2022-11-20 12:38:17,637 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 113 transitions. Word has length 13 [2022-11-20 12:38:17,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:17,637 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 113 transitions. [2022-11-20 12:38:17,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:17,638 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 113 transitions. [2022-11-20 12:38:17,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 12:38:17,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:17,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:17,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:38:17,639 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:17,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:17,640 INFO L85 PathProgramCache]: Analyzing trace with hash -409524831, now seen corresponding path program 1 times [2022-11-20 12:38:17,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:17,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412494644] [2022-11-20 12:38:17,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:17,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:17,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:17,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:17,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412494644] [2022-11-20 12:38:17,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412494644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:17,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:17,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:38:17,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312620850] [2022-11-20 12:38:17,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:17,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:38:17,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:17,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:38:17,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:38:17,752 INFO L87 Difference]: Start difference. First operand 101 states and 113 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:18,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:18,017 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2022-11-20 12:38:18,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:38:18,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2022-11-20 12:38:18,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:18,019 INFO L225 Difference]: With dead ends: 101 [2022-11-20 12:38:18,019 INFO L226 Difference]: Without dead ends: 99 [2022-11-20 12:38:18,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:38:18,020 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 83 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:18,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 83 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:38:18,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-20 12:38:18,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2022-11-20 12:38:18,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 89 states have (on average 1.247191011235955) internal successors, (111), 98 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:18,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2022-11-20 12:38:18,027 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 13 [2022-11-20 12:38:18,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:18,027 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2022-11-20 12:38:18,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:18,028 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2022-11-20 12:38:18,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 12:38:18,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:18,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:18,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:38:18,029 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:18,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:18,030 INFO L85 PathProgramCache]: Analyzing trace with hash 136195212, now seen corresponding path program 1 times [2022-11-20 12:38:18,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:18,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235098334] [2022-11-20 12:38:18,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:18,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:18,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:18,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:18,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235098334] [2022-11-20 12:38:18,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235098334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:18,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:18,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:38:18,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540089358] [2022-11-20 12:38:18,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:18,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:38:18,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:18,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:38:18,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:38:18,231 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:18,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:18,546 INFO L93 Difference]: Finished difference Result 136 states and 152 transitions. [2022-11-20 12:38:18,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:38:18,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-11-20 12:38:18,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:18,548 INFO L225 Difference]: With dead ends: 136 [2022-11-20 12:38:18,548 INFO L226 Difference]: Without dead ends: 134 [2022-11-20 12:38:18,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:38:18,549 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 52 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:18,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 296 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:38:18,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-20 12:38:18,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 105. [2022-11-20 12:38:18,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 95 states have (on average 1.2526315789473683) internal successors, (119), 104 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:18,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2022-11-20 12:38:18,558 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 14 [2022-11-20 12:38:18,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:18,558 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2022-11-20 12:38:18,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:18,559 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2022-11-20 12:38:18,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 12:38:18,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:18,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:18,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:38:18,561 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:18,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:18,561 INFO L85 PathProgramCache]: Analyzing trace with hash 137742357, now seen corresponding path program 1 times [2022-11-20 12:38:18,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:18,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210709778] [2022-11-20 12:38:18,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:18,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:18,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:18,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:18,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210709778] [2022-11-20 12:38:18,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210709778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:18,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:18,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:38:18,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255960231] [2022-11-20 12:38:18,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:18,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:38:18,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:18,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:38:18,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:38:18,659 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:18,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:18,950 INFO L93 Difference]: Finished difference Result 126 states and 142 transitions. [2022-11-20 12:38:18,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:38:18,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-11-20 12:38:18,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:18,953 INFO L225 Difference]: With dead ends: 126 [2022-11-20 12:38:18,953 INFO L226 Difference]: Without dead ends: 124 [2022-11-20 12:38:18,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:38:18,954 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 103 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:18,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 103 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:38:18,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-20 12:38:18,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 103. [2022-11-20 12:38:18,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 102 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:18,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2022-11-20 12:38:18,961 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 14 [2022-11-20 12:38:18,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:18,961 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2022-11-20 12:38:18,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:18,962 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2022-11-20 12:38:18,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 12:38:18,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:18,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:18,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:38:18,964 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:18,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:18,964 INFO L85 PathProgramCache]: Analyzing trace with hash 189636292, now seen corresponding path program 1 times [2022-11-20 12:38:18,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:18,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986575888] [2022-11-20 12:38:18,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:18,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:19,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:19,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:19,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986575888] [2022-11-20 12:38:19,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986575888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:19,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:19,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:38:19,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488155215] [2022-11-20 12:38:19,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:19,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:38:19,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:19,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:38:19,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:38:19,138 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:19,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:19,420 INFO L93 Difference]: Finished difference Result 113 states and 127 transitions. [2022-11-20 12:38:19,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:38:19,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-11-20 12:38:19,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:19,421 INFO L225 Difference]: With dead ends: 113 [2022-11-20 12:38:19,421 INFO L226 Difference]: Without dead ends: 109 [2022-11-20 12:38:19,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:38:19,423 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 22 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:19,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 245 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:38:19,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-20 12:38:19,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2022-11-20 12:38:19,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 95 states have (on average 1.2421052631578948) internal successors, (118), 103 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:19,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2022-11-20 12:38:19,428 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 14 [2022-11-20 12:38:19,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:19,429 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2022-11-20 12:38:19,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:19,429 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2022-11-20 12:38:19,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 12:38:19,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:19,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:19,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:38:19,430 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:19,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:19,432 INFO L85 PathProgramCache]: Analyzing trace with hash -24950085, now seen corresponding path program 1 times [2022-11-20 12:38:19,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:19,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343798136] [2022-11-20 12:38:19,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:19,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:19,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:19,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:19,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343798136] [2022-11-20 12:38:19,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343798136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:19,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:19,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:38:19,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104462713] [2022-11-20 12:38:19,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:19,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:38:19,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:19,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:38:19,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:38:19,602 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:19,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:19,854 INFO L93 Difference]: Finished difference Result 131 states and 147 transitions. [2022-11-20 12:38:19,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:38:19,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2022-11-20 12:38:19,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:19,860 INFO L225 Difference]: With dead ends: 131 [2022-11-20 12:38:19,860 INFO L226 Difference]: Without dead ends: 129 [2022-11-20 12:38:19,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:38:19,861 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 43 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:19,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 274 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:38:19,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-11-20 12:38:19,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 107. [2022-11-20 12:38:19,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 98 states have (on average 1.2346938775510203) internal successors, (121), 106 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:19,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2022-11-20 12:38:19,869 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 15 [2022-11-20 12:38:19,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:19,869 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2022-11-20 12:38:19,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:19,870 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2022-11-20 12:38:19,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 12:38:19,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:19,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:19,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:38:19,871 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:19,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:19,872 INFO L85 PathProgramCache]: Analyzing trace with hash 2034707599, now seen corresponding path program 1 times [2022-11-20 12:38:19,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:19,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423935852] [2022-11-20 12:38:19,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:19,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:19,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:19,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:19,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423935852] [2022-11-20 12:38:19,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423935852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:19,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:19,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:38:19,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566950351] [2022-11-20 12:38:19,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:19,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:38:19,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:19,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:38:19,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:38:19,937 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:20,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:20,026 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2022-11-20 12:38:20,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:38:20,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2022-11-20 12:38:20,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:20,027 INFO L225 Difference]: With dead ends: 107 [2022-11-20 12:38:20,027 INFO L226 Difference]: Without dead ends: 105 [2022-11-20 12:38:20,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:38:20,028 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 97 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:20,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 138 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:38:20,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-11-20 12:38:20,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2022-11-20 12:38:20,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 97 states have (on average 1.2268041237113403) internal successors, (119), 104 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:20,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2022-11-20 12:38:20,043 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 16 [2022-11-20 12:38:20,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:20,043 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2022-11-20 12:38:20,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:20,044 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2022-11-20 12:38:20,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 12:38:20,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:20,045 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:20,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:38:20,045 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:20,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:20,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1348569745, now seen corresponding path program 1 times [2022-11-20 12:38:20,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:20,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221083838] [2022-11-20 12:38:20,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:20,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:20,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:20,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:20,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221083838] [2022-11-20 12:38:20,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221083838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:20,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:20,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:38:20,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528443976] [2022-11-20 12:38:20,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:20,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:38:20,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:20,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:38:20,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:38:20,111 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:20,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:20,254 INFO L93 Difference]: Finished difference Result 105 states and 119 transitions. [2022-11-20 12:38:20,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:38:20,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-11-20 12:38:20,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:20,256 INFO L225 Difference]: With dead ends: 105 [2022-11-20 12:38:20,256 INFO L226 Difference]: Without dead ends: 101 [2022-11-20 12:38:20,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:38:20,257 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 6 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:20,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 214 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:38:20,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-11-20 12:38:20,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2022-11-20 12:38:20,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 94 states have (on average 1.2234042553191489) internal successors, (115), 100 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:20,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2022-11-20 12:38:20,265 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 17 [2022-11-20 12:38:20,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:20,266 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2022-11-20 12:38:20,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:20,266 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2022-11-20 12:38:20,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 12:38:20,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:20,267 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:20,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:38:20,268 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:20,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:20,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1418456853, now seen corresponding path program 1 times [2022-11-20 12:38:20,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:20,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381569647] [2022-11-20 12:38:20,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:20,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:20,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:20,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:20,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381569647] [2022-11-20 12:38:20,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381569647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:20,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:20,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:38:20,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258175647] [2022-11-20 12:38:20,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:20,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:38:20,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:20,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:38:20,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:38:20,443 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:20,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:20,747 INFO L93 Difference]: Finished difference Result 116 states and 132 transitions. [2022-11-20 12:38:20,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:38:20,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2022-11-20 12:38:20,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:20,749 INFO L225 Difference]: With dead ends: 116 [2022-11-20 12:38:20,749 INFO L226 Difference]: Without dead ends: 114 [2022-11-20 12:38:20,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:38:20,750 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 156 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:20,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 57 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:38:20,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-11-20 12:38:20,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 97. [2022-11-20 12:38:20,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 91 states have (on average 1.2197802197802199) internal successors, (111), 96 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:20,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 111 transitions. [2022-11-20 12:38:20,761 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 111 transitions. Word has length 18 [2022-11-20 12:38:20,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:20,761 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 111 transitions. [2022-11-20 12:38:20,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:20,762 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 111 transitions. [2022-11-20 12:38:20,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 12:38:20,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:20,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:20,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:38:20,766 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:20,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:20,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1471897933, now seen corresponding path program 1 times [2022-11-20 12:38:20,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:20,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3605452] [2022-11-20 12:38:20,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:20,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:20,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:20,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:20,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3605452] [2022-11-20 12:38:20,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3605452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:20,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:20,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:38:20,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98430349] [2022-11-20 12:38:20,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:20,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:38:20,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:20,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:38:20,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:38:20,965 INFO L87 Difference]: Start difference. First operand 97 states and 111 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:21,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:21,244 INFO L93 Difference]: Finished difference Result 97 states and 111 transitions. [2022-11-20 12:38:21,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:38:21,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2022-11-20 12:38:21,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:21,245 INFO L225 Difference]: With dead ends: 97 [2022-11-20 12:38:21,246 INFO L226 Difference]: Without dead ends: 93 [2022-11-20 12:38:21,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:38:21,247 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 130 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:21,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 44 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:38:21,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-20 12:38:21,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-11-20 12:38:21,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 88 states have (on average 1.2159090909090908) internal successors, (107), 92 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:21,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 107 transitions. [2022-11-20 12:38:21,254 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 107 transitions. Word has length 18 [2022-11-20 12:38:21,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:21,254 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 107 transitions. [2022-11-20 12:38:21,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:21,255 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 107 transitions. [2022-11-20 12:38:21,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 12:38:21,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:21,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:21,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:38:21,257 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:21,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:21,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1159129958, now seen corresponding path program 1 times [2022-11-20 12:38:21,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:21,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793964442] [2022-11-20 12:38:21,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:21,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:21,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:21,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:21,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793964442] [2022-11-20 12:38:21,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793964442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:21,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:21,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:38:21,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447673735] [2022-11-20 12:38:21,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:21,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:38:21,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:21,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:38:21,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:38:21,379 INFO L87 Difference]: Start difference. First operand 93 states and 107 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:21,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:21,671 INFO L93 Difference]: Finished difference Result 103 states and 119 transitions. [2022-11-20 12:38:21,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:38:21,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2022-11-20 12:38:21,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:21,673 INFO L225 Difference]: With dead ends: 103 [2022-11-20 12:38:21,673 INFO L226 Difference]: Without dead ends: 54 [2022-11-20 12:38:21,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:38:21,676 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 136 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:21,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 47 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:38:21,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-20 12:38:21,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-11-20 12:38:21,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 50 states have (on average 1.08) internal successors, (54), 53 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:21,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2022-11-20 12:38:21,680 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 18 [2022-11-20 12:38:21,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:21,681 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2022-11-20 12:38:21,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:21,681 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2022-11-20 12:38:21,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-20 12:38:21,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:21,687 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:38:21,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:38:21,688 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:21,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:21,689 INFO L85 PathProgramCache]: Analyzing trace with hash 892497877, now seen corresponding path program 1 times [2022-11-20 12:38:21,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:21,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396507737] [2022-11-20 12:38:21,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:21,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:22,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:22,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:22,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396507737] [2022-11-20 12:38:22,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396507737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:22,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:22,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 12:38:22,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010597198] [2022-11-20 12:38:22,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:22,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:38:22,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:22,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:38:22,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:38:22,024 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:22,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:22,209 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2022-11-20 12:38:22,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:38:22,210 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2022-11-20 12:38:22,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:22,210 INFO L225 Difference]: With dead ends: 54 [2022-11-20 12:38:22,210 INFO L226 Difference]: Without dead ends: 52 [2022-11-20 12:38:22,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:38:22,211 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 61 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:22,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 29 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:38:22,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-20 12:38:22,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-20 12:38:22,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 51 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:22,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2022-11-20 12:38:22,215 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 44 [2022-11-20 12:38:22,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:22,215 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2022-11-20 12:38:22,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:22,216 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2022-11-20 12:38:22,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-20 12:38:22,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:22,217 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:38:22,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 12:38:22,217 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:22,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:22,218 INFO L85 PathProgramCache]: Analyzing trace with hash 892513765, now seen corresponding path program 1 times [2022-11-20 12:38:22,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:22,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954672291] [2022-11-20 12:38:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:22,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:22,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:22,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:22,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954672291] [2022-11-20 12:38:22,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954672291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:22,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:22,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 12:38:22,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317942077] [2022-11-20 12:38:22,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:22,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:38:22,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:22,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:38:22,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:38:22,499 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:22,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:22,678 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2022-11-20 12:38:22,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:38:22,678 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2022-11-20 12:38:22,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:22,679 INFO L225 Difference]: With dead ends: 59 [2022-11-20 12:38:22,679 INFO L226 Difference]: Without dead ends: 57 [2022-11-20 12:38:22,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:38:22,680 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 90 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:22,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 27 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:38:22,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-20 12:38:22,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2022-11-20 12:38:22,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 49 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:22,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2022-11-20 12:38:22,683 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 44 [2022-11-20 12:38:22,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:22,684 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2022-11-20 12:38:22,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:22,684 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2022-11-20 12:38:22,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-20 12:38:22,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:22,685 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:38:22,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 12:38:22,686 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:22,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:22,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1897634854, now seen corresponding path program 1 times [2022-11-20 12:38:22,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:22,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299689914] [2022-11-20 12:38:22,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:22,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:23,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:23,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:23,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299689914] [2022-11-20 12:38:23,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299689914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:23,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:23,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:38:23,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643722120] [2022-11-20 12:38:23,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:23,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:38:23,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:23,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:38:23,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:38:23,201 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:23,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:23,322 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2022-11-20 12:38:23,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:38:23,323 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2022-11-20 12:38:23,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:23,323 INFO L225 Difference]: With dead ends: 50 [2022-11-20 12:38:23,324 INFO L226 Difference]: Without dead ends: 46 [2022-11-20 12:38:23,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:38:23,325 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 88 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:23,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 14 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:38:23,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-20 12:38:23,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-20 12:38:23,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 45 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:23,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2022-11-20 12:38:23,328 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 45 [2022-11-20 12:38:23,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:23,328 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2022-11-20 12:38:23,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:23,328 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2022-11-20 12:38:23,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-20 12:38:23,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:23,329 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:38:23,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 12:38:23,329 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-20 12:38:23,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:23,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1898127398, now seen corresponding path program 1 times [2022-11-20 12:38:23,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:23,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015372838] [2022-11-20 12:38:23,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:23,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:23,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:23,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:23,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015372838] [2022-11-20 12:38:23,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015372838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:23,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:23,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:38:23,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672707619] [2022-11-20 12:38:23,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:23,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:38:23,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:23,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:38:23,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:38:23,818 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:23,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:23,947 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2022-11-20 12:38:23,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:38:23,948 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2022-11-20 12:38:23,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:23,949 INFO L225 Difference]: With dead ends: 50 [2022-11-20 12:38:23,949 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 12:38:23,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:38:23,950 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 59 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:23,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 15 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:38:23,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 12:38:23,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 12:38:23,951 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) [2022-11-20 12:38:23,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 12:38:23,952 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2022-11-20 12:38:23,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:23,952 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:38:23,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:23,952 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 12:38:23,952 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 12:38:23,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 16 remaining) [2022-11-20 12:38:23,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (14 of 16 remaining) [2022-11-20 12:38:23,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (13 of 16 remaining) [2022-11-20 12:38:23,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (12 of 16 remaining) [2022-11-20 12:38:23,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (11 of 16 remaining) [2022-11-20 12:38:23,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (10 of 16 remaining) [2022-11-20 12:38:23,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (9 of 16 remaining) [2022-11-20 12:38:23,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (8 of 16 remaining) [2022-11-20 12:38:23,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (7 of 16 remaining) [2022-11-20 12:38:23,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (6 of 16 remaining) [2022-11-20 12:38:23,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (5 of 16 remaining) [2022-11-20 12:38:23,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (4 of 16 remaining) [2022-11-20 12:38:23,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (3 of 16 remaining) [2022-11-20 12:38:23,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (2 of 16 remaining) [2022-11-20 12:38:23,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (1 of 16 remaining) [2022-11-20 12:38:23,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (0 of 16 remaining) [2022-11-20 12:38:23,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 12:38:23,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 12:38:24,157 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2022-11-20 12:38:24,157 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 229) no Hoare annotation was computed. [2022-11-20 12:38:24,157 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 969) no Hoare annotation was computed. [2022-11-20 12:38:24,158 INFO L899 garLoopResultBuilder]: For program point L366(lines 366 991) no Hoare annotation was computed. [2022-11-20 12:38:24,158 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 275) no Hoare annotation was computed. [2022-11-20 12:38:24,158 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 883) no Hoare annotation was computed. [2022-11-20 12:38:24,158 INFO L899 garLoopResultBuilder]: For program point L581(lines 581 971) no Hoare annotation was computed. [2022-11-20 12:38:24,158 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2022-11-20 12:38:24,158 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2022-11-20 12:38:24,158 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 12:38:24,159 INFO L899 garLoopResultBuilder]: For program point L317(lines 317 994) no Hoare annotation was computed. [2022-11-20 12:38:24,159 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2022-11-20 12:38:24,159 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 424) no Hoare annotation was computed. [2022-11-20 12:38:24,160 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 242) no Hoare annotation was computed. [2022-11-20 12:38:24,160 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 125) no Hoare annotation was computed. [2022-11-20 12:38:24,160 INFO L899 garLoopResultBuilder]: For program point L615(lines 615 626) no Hoare annotation was computed. [2022-11-20 12:38:24,160 INFO L899 garLoopResultBuilder]: For program point L929(lines 929 941) no Hoare annotation was computed. [2022-11-20 12:38:24,160 INFO L899 garLoopResultBuilder]: For program point L219(line 219) no Hoare annotation was computed. [2022-11-20 12:38:24,161 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 269) no Hoare annotation was computed. [2022-11-20 12:38:24,161 INFO L899 garLoopResultBuilder]: For program point L665(lines 665 963) no Hoare annotation was computed. [2022-11-20 12:38:24,161 INFO L899 garLoopResultBuilder]: For program point L434(lines 434 985) no Hoare annotation was computed. [2022-11-20 12:38:24,161 INFO L899 garLoopResultBuilder]: For program point L269(line 269) no Hoare annotation was computed. [2022-11-20 12:38:24,161 INFO L899 garLoopResultBuilder]: For program point L649(lines 649 965) no Hoare annotation was computed. [2022-11-20 12:38:24,162 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2022-11-20 12:38:24,162 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 988) no Hoare annotation was computed. [2022-11-20 12:38:24,162 INFO L899 garLoopResultBuilder]: For program point L22(lines 22 1005) no Hoare annotation was computed. [2022-11-20 12:38:24,162 INFO L899 garLoopResultBuilder]: For program point L468(lines 468 492) no Hoare annotation was computed. [2022-11-20 12:38:24,163 INFO L899 garLoopResultBuilder]: For program point L881(lines 881 907) no Hoare annotation was computed. [2022-11-20 12:38:24,163 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 193) no Hoare annotation was computed. [2022-11-20 12:38:24,163 INFO L899 garLoopResultBuilder]: For program point L683(lines 683 694) no Hoare annotation was computed. [2022-11-20 12:38:24,163 INFO L899 garLoopResultBuilder]: For program point L105(line 105) no Hoare annotation was computed. [2022-11-20 12:38:24,163 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 288) no Hoare annotation was computed. [2022-11-20 12:38:24,164 INFO L899 garLoopResultBuilder]: For program point L931(line 931) no Hoare annotation was computed. [2022-11-20 12:38:24,164 INFO L899 garLoopResultBuilder]: For program point L733(lines 733 957) no Hoare annotation was computed. [2022-11-20 12:38:24,164 INFO L899 garLoopResultBuilder]: For program point L155(lines 155 234) no Hoare annotation was computed. [2022-11-20 12:38:24,164 INFO L899 garLoopResultBuilder]: For program point L502(lines 502 979) no Hoare annotation was computed. [2022-11-20 12:38:24,164 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 231) no Hoare annotation was computed. [2022-11-20 12:38:24,165 INFO L899 garLoopResultBuilder]: For program point L717(lines 717 959) no Hoare annotation was computed. [2022-11-20 12:38:24,165 INFO L899 garLoopResultBuilder]: For program point L453(lines 453 982) no Hoare annotation was computed. [2022-11-20 12:38:24,165 INFO L902 garLoopResultBuilder]: At program point L932(lines 17 1006) the Hoare annotation is: true [2022-11-20 12:38:24,165 INFO L899 garLoopResultBuilder]: For program point L866(lines 866 946) no Hoare annotation was computed. [2022-11-20 12:38:24,166 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 277) no Hoare annotation was computed. [2022-11-20 12:38:24,166 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 207) no Hoare annotation was computed. [2022-11-20 12:38:24,166 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 560) no Hoare annotation was computed. [2022-11-20 12:38:24,166 INFO L899 garLoopResultBuilder]: For program point L883(line 883) no Hoare annotation was computed. [2022-11-20 12:38:24,166 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 762) no Hoare annotation was computed. [2022-11-20 12:38:24,167 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-11-20 12:38:24,167 INFO L899 garLoopResultBuilder]: For program point L801(lines 801 951) no Hoare annotation was computed. [2022-11-20 12:38:24,167 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 12:38:24,167 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2022-11-20 12:38:24,167 INFO L899 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2022-11-20 12:38:24,168 INFO L899 garLoopResultBuilder]: For program point L570(lines 570 973) no Hoare annotation was computed. [2022-11-20 12:38:24,168 INFO L899 garLoopResultBuilder]: For program point L917(lines 917 943) no Hoare annotation was computed. [2022-11-20 12:38:24,168 INFO L899 garLoopResultBuilder]: For program point L785(lines 785 953) no Hoare annotation was computed. [2022-11-20 12:38:24,168 INFO L899 garLoopResultBuilder]: For program point L207(line 207) no Hoare annotation was computed. [2022-11-20 12:38:24,168 INFO L899 garLoopResultBuilder]: For program point L521(lines 521 976) no Hoare annotation was computed. [2022-11-20 12:38:24,169 INFO L895 garLoopResultBuilder]: At program point L868(lines 26 1000) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~main__t~0#1|) (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)) [2022-11-20 12:38:24,169 INFO L899 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2022-11-20 12:38:24,169 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 628) no Hoare annotation was computed. [2022-11-20 12:38:24,170 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 1000) no Hoare annotation was computed. [2022-11-20 12:38:24,170 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 105) no Hoare annotation was computed. [2022-11-20 12:38:24,170 INFO L899 garLoopResultBuilder]: For program point L819(lines 819 830) no Hoare annotation was computed. [2022-11-20 12:38:24,170 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 895) no Hoare annotation was computed. [2022-11-20 12:38:24,170 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 967) no Hoare annotation was computed. [2022-11-20 12:38:24,171 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2022-11-20 12:38:24,171 INFO L899 garLoopResultBuilder]: For program point L919(line 919) no Hoare annotation was computed. [2022-11-20 12:38:24,171 INFO L899 garLoopResultBuilder]: For program point L853(lines 853 947) no Hoare annotation was computed. [2022-11-20 12:38:24,171 INFO L899 garLoopResultBuilder]: For program point L143(lines 143 236) no Hoare annotation was computed. [2022-11-20 12:38:24,172 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 970) no Hoare annotation was computed. [2022-11-20 12:38:24,172 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 993) no Hoare annotation was computed. [2022-11-20 12:38:24,172 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 696) no Hoare annotation was computed. [2022-11-20 12:38:24,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2022-11-20 12:38:24,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 12:38:24,173 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 995) no Hoare annotation was computed. [2022-11-20 12:38:24,173 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 931) no Hoare annotation was computed. [2022-11-20 12:38:24,173 INFO L895 garLoopResultBuilder]: At program point L904(lines 65 999) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~main__t~0#1|) (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)) [2022-11-20 12:38:24,173 INFO L899 garLoopResultBuilder]: For program point L706(lines 706 961) no Hoare annotation was computed. [2022-11-20 12:38:24,173 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 354) no Hoare annotation was computed. [2022-11-20 12:38:24,174 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 117) no Hoare annotation was computed. [2022-11-20 12:38:24,174 INFO L899 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2022-11-20 12:38:24,174 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 964) no Hoare annotation was computed. [2022-11-20 12:38:24,174 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 56) no Hoare annotation was computed. [2022-11-20 12:38:24,175 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 919) no Hoare annotation was computed. [2022-11-20 12:38:24,175 INFO L902 garLoopResultBuilder]: At program point L1004(lines 22 1005) the Hoare annotation is: true [2022-11-20 12:38:24,175 INFO L899 garLoopResultBuilder]: For program point L393(lines 393 987) no Hoare annotation was computed. [2022-11-20 12:38:24,175 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 764) no Hoare annotation was computed. [2022-11-20 12:38:24,175 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 285) no Hoare annotation was computed. [2022-11-20 12:38:24,176 INFO L899 garLoopResultBuilder]: For program point L377(lines 377 989) no Hoare annotation was computed. [2022-11-20 12:38:24,176 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 955) no Hoare annotation was computed. [2022-11-20 12:38:24,176 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2022-11-20 12:38:24,176 INFO L899 garLoopResultBuilder]: For program point L411(lines 411 422) no Hoare annotation was computed. [2022-11-20 12:38:24,176 INFO L899 garLoopResultBuilder]: For program point L725(lines 725 958) no Hoare annotation was computed. [2022-11-20 12:38:24,177 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2022-11-20 12:38:24,177 INFO L899 garLoopResultBuilder]: For program point L461(lines 461 981) no Hoare annotation was computed. [2022-11-20 12:38:24,177 INFO L895 garLoopResultBuilder]: At program point L940(lines 858 947) the Hoare annotation is: (and (<= 9 |ULTIMATE.start_main_~main__t~0#1|) (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)) [2022-11-20 12:38:24,177 INFO L899 garLoopResultBuilder]: For program point L874(lines 874 945) no Hoare annotation was computed. [2022-11-20 12:38:24,178 INFO L899 garLoopResultBuilder]: For program point L808(lines 808 832) no Hoare annotation was computed. [2022-11-20 12:38:24,178 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 233) no Hoare annotation was computed. [2022-11-20 12:38:24,178 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 999) no Hoare annotation was computed. [2022-11-20 12:38:24,178 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 12:38:24,178 INFO L899 garLoopResultBuilder]: For program point L445(lines 445 983) no Hoare annotation was computed. [2022-11-20 12:38:24,179 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2022-11-20 12:38:24,179 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 123) no Hoare annotation was computed. [2022-11-20 12:38:24,179 INFO L899 garLoopResultBuilder]: For program point L842(lines 842 949) no Hoare annotation was computed. [2022-11-20 12:38:24,179 INFO L899 garLoopResultBuilder]: For program point L132(lines 132 284) no Hoare annotation was computed. [2022-11-20 12:38:24,179 INFO L899 garLoopResultBuilder]: For program point L479(lines 479 490) no Hoare annotation was computed. [2022-11-20 12:38:24,179 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 952) no Hoare annotation was computed. [2022-11-20 12:38:24,180 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 283) no Hoare annotation was computed. [2022-11-20 12:38:24,180 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 286) no Hoare annotation was computed. [2022-11-20 12:38:24,180 INFO L899 garLoopResultBuilder]: For program point L529(lines 529 975) no Hoare annotation was computed. [2022-11-20 12:38:24,180 INFO L899 garLoopResultBuilder]: For program point L298(lines 298 997) no Hoare annotation was computed. [2022-11-20 12:38:24,180 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 58) no Hoare annotation was computed. [2022-11-20 12:38:24,181 INFO L899 garLoopResultBuilder]: For program point L513(lines 513 977) no Hoare annotation was computed. [2022-11-20 12:38:24,181 INFO L899 garLoopResultBuilder]: For program point L893(lines 893 905) no Hoare annotation was computed. [2022-11-20 12:38:24,181 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2022-11-20 12:38:24,181 INFO L895 garLoopResultBuilder]: At program point L282(lines 132 284) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~main__t~0#1|) (not (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| |ULTIMATE.start_main_~main__t~0#1|))) [2022-11-20 12:38:24,182 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 191) no Hoare annotation was computed. [2022-11-20 12:38:24,182 INFO L899 garLoopResultBuilder]: For program point L117(line 117) no Hoare annotation was computed. [2022-11-20 12:38:24,182 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 356) no Hoare annotation was computed. [2022-11-20 12:38:24,182 INFO L899 garLoopResultBuilder]: For program point L547(lines 547 558) no Hoare annotation was computed. [2022-11-20 12:38:24,186 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:24,189 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:38:24,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:38:24 BoogieIcfgContainer [2022-11-20 12:38:24,208 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:38:24,209 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:38:24,209 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:38:24,209 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:38:24,210 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:38:14" (3/4) ... [2022-11-20 12:38:24,214 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:38:24,232 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-20 12:38:24,234 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 12:38:24,235 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 12:38:24,236 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:38:24,328 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9640ed6-de42-46e8-af17-78caaecbf686/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:38:24,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:38:24,330 INFO L158 Benchmark]: Toolchain (without parser) took 11679.80ms. Allocated memory was 125.8MB in the beginning and 205.5MB in the end (delta: 79.7MB). Free memory was 62.7MB in the beginning and 114.8MB in the end (delta: -52.1MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2022-11-20 12:38:24,330 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 125.8MB. Free memory is still 94.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:38:24,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 766.55ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 62.5MB in the beginning and 123.8MB in the end (delta: -61.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2022-11-20 12:38:24,331 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.69ms. Allocated memory is still 169.9MB. Free memory was 123.8MB in the beginning and 120.5MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:38:24,331 INFO L158 Benchmark]: Boogie Preprocessor took 55.38ms. Allocated memory is still 169.9MB. Free memory was 120.5MB in the beginning and 118.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:38:24,332 INFO L158 Benchmark]: RCFGBuilder took 1027.35ms. Allocated memory is still 169.9MB. Free memory was 118.4MB in the beginning and 87.5MB in the end (delta: 30.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-20 12:38:24,332 INFO L158 Benchmark]: TraceAbstraction took 9577.56ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 86.9MB in the beginning and 124.4MB in the end (delta: -37.5MB). Peak memory consumption was 266.4kB. Max. memory is 16.1GB. [2022-11-20 12:38:24,333 INFO L158 Benchmark]: Witness Printer took 120.16ms. Allocated memory is still 205.5MB. Free memory was 124.4MB in the beginning and 114.8MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 12:38:24,335 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 125.8MB. Free memory is still 94.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 766.55ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 62.5MB in the beginning and 123.8MB in the end (delta: -61.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.69ms. Allocated memory is still 169.9MB. Free memory was 123.8MB in the beginning and 120.5MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.38ms. Allocated memory is still 169.9MB. Free memory was 120.5MB in the beginning and 118.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1027.35ms. Allocated memory is still 169.9MB. Free memory was 118.4MB in the beginning and 87.5MB in the end (delta: 30.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9577.56ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 86.9MB in the beginning and 124.4MB in the end (delta: -37.5MB). Peak memory consumption was 266.4kB. Max. memory is 16.1GB. * Witness Printer took 120.16ms. Allocated memory is still 205.5MB. Free memory was 124.4MB in the beginning and 114.8MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 36]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 48]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 105]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 117]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 145]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 157]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 173]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 185]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 207]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 219]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 257]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 269]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 883]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 895]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 919]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 931]: 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, 120 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 9.5s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1536 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1536 mSDsluCounter, 2483 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1445 mSDsCounter, 323 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3638 IncrementalHoareTripleChecker+Invalid, 3961 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 323 mSolverCounterUnsat, 1038 mSDtfsCounter, 3638 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=0, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 19 MinimizatonAttempts, 119 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 16 NumberOfFragments, 31 HoareAnnotationTreeSize, 6 FomulaSimplifications, 4434 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 6 FomulaSimplificationsInter, 211 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 386 NumberOfCodeBlocks, 386 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 367 ConstructedInterpolants, 0 QuantifiedInterpolants, 1313 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 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 16 specifications checked. All of them hold - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 1 <= main__t && !(main__tagbuf_len <= main__t) - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 858]: Loop Invariant Derived loop invariant: 9 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-20 12:38:24,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9640ed6-de42-46e8-af17-78caaecbf686/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE