./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7804e81a-3bac-4456-b167-dfa9cf3a37fd/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7804e81a-3bac-4456-b167-dfa9cf3a37fd/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7804e81a-3bac-4456-b167-dfa9cf3a37fd/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7804e81a-3bac-4456-b167-dfa9cf3a37fd/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7804e81a-3bac-4456-b167-dfa9cf3a37fd/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7804e81a-3bac-4456-b167-dfa9cf3a37fd/bin/uautomizer-QkZJyEgLgS --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 2dda75b6d46698b5258f612b82d0e93d324481eaa047be7e62672a619c582b4e --- 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-4e7fbc6 [2022-11-23 02:57:57,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:57:57,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:57:57,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:57:57,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:57:57,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:57:57,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:57:57,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:57:57,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:57:57,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:57:57,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:57:57,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:57:57,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:57:57,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:57:57,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:57:57,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:57:57,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:57:57,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:57:57,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:57:57,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:57:57,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:57:57,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:57:57,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:57:57,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:57:57,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:57:57,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:57:57,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:57:57,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:57:57,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:57:57,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:57:57,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:57:57,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:57:57,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:57:57,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:57:57,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:57:57,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:57:57,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:57:57,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:57:57,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:57:57,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:57:57,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:57:57,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7804e81a-3bac-4456-b167-dfa9cf3a37fd/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-23 02:57:57,232 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:57:57,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:57:57,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:57:57,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:57:57,233 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:57:57,234 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:57:57,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:57:57,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:57:57,235 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:57:57,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:57:57,235 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:57:57,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:57:57,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:57:57,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:57:57,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:57:57,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:57:57,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:57:57,237 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:57:57,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:57:57,237 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:57:57,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:57:57,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:57:57,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:57:57,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:57:57,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:57:57,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:57:57,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:57:57,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:57:57,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:57:57,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:57:57,240 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:57:57,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:57:57,240 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:57:57,240 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:57:57,240 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_7804e81a-3bac-4456-b167-dfa9cf3a37fd/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7804e81a-3bac-4456-b167-dfa9cf3a37fd/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2dda75b6d46698b5258f612b82d0e93d324481eaa047be7e62672a619c582b4e [2022-11-23 02:57:57,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:57:57,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:57:57,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:57:57,536 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:57:57,536 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:57:57,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7804e81a-3bac-4456-b167-dfa9cf3a37fd/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c [2022-11-23 02:58:00,551 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:58:01,222 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:58:01,223 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7804e81a-3bac-4456-b167-dfa9cf3a37fd/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c [2022-11-23 02:58:01,315 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7804e81a-3bac-4456-b167-dfa9cf3a37fd/bin/uautomizer-QkZJyEgLgS/data/22f533f97/dc23294fb71c4e98adf5ad5f19c27016/FLAGaab6f0f92 [2022-11-23 02:58:01,334 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7804e81a-3bac-4456-b167-dfa9cf3a37fd/bin/uautomizer-QkZJyEgLgS/data/22f533f97/dc23294fb71c4e98adf5ad5f19c27016 [2022-11-23 02:58:01,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:58:01,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:58:01,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:58:01,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:58:01,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:58:01,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:58:01" (1/1) ... [2022-11-23 02:58:01,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fae1c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:01, skipping insertion in model container [2022-11-23 02:58:01,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:58:01" (1/1) ... [2022-11-23 02:58:01,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:58:01,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:58:03,824 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_7804e81a-3bac-4456-b167-dfa9cf3a37fd/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c[382357,382370] [2022-11-23 02:58:03,851 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_7804e81a-3bac-4456-b167-dfa9cf3a37fd/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c[383339,383352] [2022-11-23 02:58:04,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:58:04,141 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:58:05,349 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_7804e81a-3bac-4456-b167-dfa9cf3a37fd/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c[382357,382370] [2022-11-23 02:58:05,353 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_7804e81a-3bac-4456-b167-dfa9cf3a37fd/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c[383339,383352] [2022-11-23 02:58:05,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:58:05,433 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:58:05,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:05 WrapperNode [2022-11-23 02:58:05,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:58:05,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:58:05,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:58:05,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:58:05,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:05" (1/1) ... [2022-11-23 02:58:05,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:05" (1/1) ... [2022-11-23 02:58:05,917 INFO L138 Inliner]: procedures = 56, calls = 59, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 12851 [2022-11-23 02:58:05,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:58:05,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:58:05,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:58:05,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:58:05,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:05" (1/1) ... [2022-11-23 02:58:05,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:05" (1/1) ... [2022-11-23 02:58:06,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:05" (1/1) ... [2022-11-23 02:58:06,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:05" (1/1) ... [2022-11-23 02:58:06,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:05" (1/1) ... [2022-11-23 02:58:06,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:05" (1/1) ... [2022-11-23 02:58:06,333 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:05" (1/1) ... [2022-11-23 02:58:06,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:05" (1/1) ... [2022-11-23 02:58:06,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:58:06,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:58:06,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:58:06,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:58:06,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:05" (1/1) ... [2022-11-23 02:58:06,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:58:06,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7804e81a-3bac-4456-b167-dfa9cf3a37fd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:58:06,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7804e81a-3bac-4456-b167-dfa9cf3a37fd/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:58:06,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7804e81a-3bac-4456-b167-dfa9cf3a37fd/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:58:06,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:58:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-11-23 02:58:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-11-23 02:58:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-23 02:58:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-23 02:58:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-11-23 02:58:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-11-23 02:58:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-11-23 02:58:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-11-23 02:58:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-11-23 02:58:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-11-23 02:58:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-11-23 02:58:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-11-23 02:58:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:58:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:58:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:58:06,904 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:58:06,907 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:58:15,702 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:58:15,743 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:58:15,743 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-23 02:58:15,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:58:15 BoogieIcfgContainer [2022-11-23 02:58:15,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:58:15,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:58:15,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:58:15,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:58:15,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:58:01" (1/3) ... [2022-11-23 02:58:15,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c151260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:58:15, skipping insertion in model container [2022-11-23 02:58:15,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:05" (2/3) ... [2022-11-23 02:58:15,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c151260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:58:15, skipping insertion in model container [2022-11-23 02:58:15,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:58:15" (3/3) ... [2022-11-23 02:58:15,766 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.06.cil-2.c [2022-11-23 02:58:15,785 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:58:15,785 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 02:58:15,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:58:15,923 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;@403eb100, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:58:15,924 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 02:58:15,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 2415 states, 2386 states have (on average 1.8512154233025986) internal successors, (4417), 2389 states have internal predecessors, (4417), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-23 02:58:15,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-23 02:58:15,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:58:15,975 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:58:15,975 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:58:15,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:58:15,981 INFO L85 PathProgramCache]: Analyzing trace with hash -72843931, now seen corresponding path program 1 times [2022-11-23 02:58:15,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:58:15,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781942311] [2022-11-23 02:58:15,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:58:15,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:58:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:16,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 02:58:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:16,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-23 02:58:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:16,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-23 02:58:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:16,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-23 02:58:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:16,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-23 02:58:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:16,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:58:16,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:58:16,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781942311] [2022-11-23 02:58:16,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781942311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:58:16,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:58:16,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:58:16,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462420124] [2022-11-23 02:58:16,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:58:16,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 02:58:16,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:58:16,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 02:58:16,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 02:58:16,546 INFO L87 Difference]: Start difference. First operand has 2415 states, 2386 states have (on average 1.8512154233025986) internal successors, (4417), 2389 states have internal predecessors, (4417), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:58:18,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:58:18,038 INFO L93 Difference]: Finished difference Result 4896 states and 9026 transitions. [2022-11-23 02:58:18,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:58:18,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-11-23 02:58:18,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:58:18,065 INFO L225 Difference]: With dead ends: 4896 [2022-11-23 02:58:18,065 INFO L226 Difference]: Without dead ends: 2424 [2022-11-23 02:58:18,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 02:58:18,077 INFO L413 NwaCegarLoop]: 4238 mSDtfsCounter, 588 mSDsluCounter, 12309 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 16547 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:58:18,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 16547 Invalid, 615 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 02:58:18,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2424 states. [2022-11-23 02:58:18,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2424 to 2348. [2022-11-23 02:58:18,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2348 states, 2320 states have (on average 1.8387931034482758) internal successors, (4266), 2322 states have internal predecessors, (4266), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-23 02:58:18,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 4306 transitions. [2022-11-23 02:58:18,236 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 4306 transitions. Word has length 112 [2022-11-23 02:58:18,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:58:18,237 INFO L495 AbstractCegarLoop]: Abstraction has 2348 states and 4306 transitions. [2022-11-23 02:58:18,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:58:18,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 4306 transitions. [2022-11-23 02:58:18,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-23 02:58:18,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:58:18,245 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:58:18,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:58:18,246 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:58:18,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:58:18,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1103884829, now seen corresponding path program 1 times [2022-11-23 02:58:18,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:58:18,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380686431] [2022-11-23 02:58:18,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:58:18,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:58:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:18,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 02:58:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:18,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-23 02:58:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:18,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-23 02:58:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:18,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-23 02:58:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:18,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-23 02:58:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:18,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:58:18,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:58:18,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380686431] [2022-11-23 02:58:18,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380686431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:58:18,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:58:18,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 02:58:18,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815555558] [2022-11-23 02:58:18,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:58:18,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 02:58:18,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:58:18,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:58:18,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:58:18,667 INFO L87 Difference]: Start difference. First operand 2348 states and 4306 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:58:21,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:58:21,523 INFO L93 Difference]: Finished difference Result 2945 states and 5262 transitions. [2022-11-23 02:58:21,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 02:58:21,524 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-11-23 02:58:21,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:58:21,538 INFO L225 Difference]: With dead ends: 2945 [2022-11-23 02:58:21,538 INFO L226 Difference]: Without dead ends: 2732 [2022-11-23 02:58:21,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-23 02:58:21,542 INFO L413 NwaCegarLoop]: 4299 mSDtfsCounter, 4789 mSDsluCounter, 16938 mSDsCounter, 0 mSdLazyCounter, 2105 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 21237 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-23 02:58:21,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4802 Valid, 21237 Invalid, 2161 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 2105 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-23 02:58:21,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2022-11-23 02:58:21,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 2571. [2022-11-23 02:58:21,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 2518 states have (on average 1.8177124702144558) internal successors, (4577), 2522 states have internal predecessors, (4577), 37 states have call successors, (37), 12 states have call predecessors, (37), 14 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2022-11-23 02:58:21,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 4658 transitions. [2022-11-23 02:58:21,661 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 4658 transitions. Word has length 112 [2022-11-23 02:58:21,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:58:21,662 INFO L495 AbstractCegarLoop]: Abstraction has 2571 states and 4658 transitions. [2022-11-23 02:58:21,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:58:21,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 4658 transitions. [2022-11-23 02:58:21,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-23 02:58:21,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:58:21,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:58:21,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 02:58:21,666 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:58:21,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:58:21,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1572107553, now seen corresponding path program 1 times [2022-11-23 02:58:21,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:58:21,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214735014] [2022-11-23 02:58:21,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:58:21,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:58:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:21,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 02:58:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:21,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-23 02:58:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:21,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-23 02:58:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:21,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-23 02:58:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:21,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-23 02:58:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:21,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:58:21,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:58:21,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214735014] [2022-11-23 02:58:21,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214735014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:58:21,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:58:21,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 02:58:21,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984900677] [2022-11-23 02:58:21,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:58:21,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 02:58:21,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:58:21,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:58:21,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:58:21,915 INFO L87 Difference]: Start difference. First operand 2571 states and 4658 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:58:24,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:58:24,622 INFO L93 Difference]: Finished difference Result 3704 states and 6454 transitions. [2022-11-23 02:58:24,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 02:58:24,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-11-23 02:58:24,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:58:24,636 INFO L225 Difference]: With dead ends: 3704 [2022-11-23 02:58:24,636 INFO L226 Difference]: Without dead ends: 3270 [2022-11-23 02:58:24,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-23 02:58:24,640 INFO L413 NwaCegarLoop]: 4274 mSDtfsCounter, 4814 mSDsluCounter, 16875 mSDsCounter, 0 mSdLazyCounter, 1981 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4827 SdHoareTripleChecker+Valid, 21149 SdHoareTripleChecker+Invalid, 2043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-23 02:58:24,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4827 Valid, 21149 Invalid, 2043 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 1981 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-23 02:58:24,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3270 states. [2022-11-23 02:58:24,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3270 to 2981. [2022-11-23 02:58:24,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2981 states, 2884 states have (on average 1.782246879334258) internal successors, (5140), 2890 states have internal predecessors, (5140), 67 states have call successors, (67), 24 states have call predecessors, (67), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2022-11-23 02:58:24,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2981 states to 2981 states and 5291 transitions. [2022-11-23 02:58:24,782 INFO L78 Accepts]: Start accepts. Automaton has 2981 states and 5291 transitions. Word has length 112 [2022-11-23 02:58:24,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:58:24,782 INFO L495 AbstractCegarLoop]: Abstraction has 2981 states and 5291 transitions. [2022-11-23 02:58:24,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:58:24,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2981 states and 5291 transitions. [2022-11-23 02:58:24,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-23 02:58:24,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:58:24,785 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:58:24,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 02:58:24,786 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:58:24,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:58:24,787 INFO L85 PathProgramCache]: Analyzing trace with hash 688598563, now seen corresponding path program 1 times [2022-11-23 02:58:24,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:58:24,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5071530] [2022-11-23 02:58:24,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:58:24,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:58:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:24,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 02:58:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:24,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-23 02:58:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:24,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-23 02:58:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:25,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-23 02:58:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:25,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-23 02:58:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:25,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:58:25,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:58:25,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5071530] [2022-11-23 02:58:25,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5071530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:58:25,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:58:25,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 02:58:25,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545735174] [2022-11-23 02:58:25,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:58:25,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 02:58:25,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:58:25,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:58:25,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:58:25,026 INFO L87 Difference]: Start difference. First operand 2981 states and 5291 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:58:27,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:58:27,639 INFO L93 Difference]: Finished difference Result 5188 states and 8779 transitions. [2022-11-23 02:58:27,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 02:58:27,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-11-23 02:58:27,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:58:27,658 INFO L225 Difference]: With dead ends: 5188 [2022-11-23 02:58:27,659 INFO L226 Difference]: Without dead ends: 4344 [2022-11-23 02:58:27,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-23 02:58:27,664 INFO L413 NwaCegarLoop]: 4296 mSDtfsCounter, 4789 mSDsluCounter, 16938 mSDsCounter, 0 mSdLazyCounter, 2095 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 21234 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 02:58:27,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4802 Valid, 21234 Invalid, 2153 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 2095 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 02:58:27,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4344 states. [2022-11-23 02:58:27,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4344 to 3803. [2022-11-23 02:58:27,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3803 states, 3618 states have (on average 1.732448866777225) internal successors, (6268), 3628 states have internal predecessors, (6268), 127 states have call successors, (127), 48 states have call predecessors, (127), 56 states have return successors, (170), 134 states have call predecessors, (170), 127 states have call successors, (170) [2022-11-23 02:58:27,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3803 states to 3803 states and 6565 transitions. [2022-11-23 02:58:27,882 INFO L78 Accepts]: Start accepts. Automaton has 3803 states and 6565 transitions. Word has length 112 [2022-11-23 02:58:27,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:58:27,884 INFO L495 AbstractCegarLoop]: Abstraction has 3803 states and 6565 transitions. [2022-11-23 02:58:27,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:58:27,884 INFO L276 IsEmpty]: Start isEmpty. Operand 3803 states and 6565 transitions. [2022-11-23 02:58:27,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-23 02:58:27,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:58:27,887 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:58:27,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 02:58:27,888 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:58:27,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:58:27,889 INFO L85 PathProgramCache]: Analyzing trace with hash 660098273, now seen corresponding path program 1 times [2022-11-23 02:58:27,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:58:27,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181603210] [2022-11-23 02:58:27,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:58:27,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:58:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:27,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 02:58:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:28,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-23 02:58:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:28,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-23 02:58:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:28,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-23 02:58:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:28,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-23 02:58:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:28,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:58:28,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:58:28,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181603210] [2022-11-23 02:58:28,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181603210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:58:28,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:58:28,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 02:58:28,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091226666] [2022-11-23 02:58:28,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:58:28,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 02:58:28,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:58:28,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:58:28,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:58:28,096 INFO L87 Difference]: Start difference. First operand 3803 states and 6565 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:58:30,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:58:30,982 INFO L93 Difference]: Finished difference Result 8154 states and 13443 transitions. [2022-11-23 02:58:30,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 02:58:30,983 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-11-23 02:58:30,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:58:31,015 INFO L225 Difference]: With dead ends: 8154 [2022-11-23 02:58:31,015 INFO L226 Difference]: Without dead ends: 6488 [2022-11-23 02:58:31,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-23 02:58:31,024 INFO L413 NwaCegarLoop]: 4296 mSDtfsCounter, 4789 mSDsluCounter, 16938 mSDsCounter, 0 mSdLazyCounter, 2086 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 21234 SdHoareTripleChecker+Invalid, 2144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-23 02:58:31,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4802 Valid, 21234 Invalid, 2144 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 2086 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-23 02:58:31,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6488 states. [2022-11-23 02:58:31,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6488 to 5453. [2022-11-23 02:58:31,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5453 states, 5092 states have (on average 1.6755695208169679) internal successors, (8532), 5110 states have internal predecessors, (8532), 247 states have call successors, (247), 96 states have call predecessors, (247), 112 states have return successors, (360), 262 states have call predecessors, (360), 247 states have call successors, (360) [2022-11-23 02:58:31,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5453 states to 5453 states and 9139 transitions. [2022-11-23 02:58:31,413 INFO L78 Accepts]: Start accepts. Automaton has 5453 states and 9139 transitions. Word has length 112 [2022-11-23 02:58:31,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:58:31,413 INFO L495 AbstractCegarLoop]: Abstraction has 5453 states and 9139 transitions. [2022-11-23 02:58:31,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:58:31,415 INFO L276 IsEmpty]: Start isEmpty. Operand 5453 states and 9139 transitions. [2022-11-23 02:58:31,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-23 02:58:31,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:58:31,422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:58:31,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 02:58:31,422 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:58:31,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:58:31,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1280483741, now seen corresponding path program 1 times [2022-11-23 02:58:31,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:58:31,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075123506] [2022-11-23 02:58:31,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:58:31,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:58:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:31,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 02:58:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:31,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-23 02:58:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:31,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-23 02:58:31,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:31,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-23 02:58:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:31,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-23 02:58:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:31,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:58:31,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:58:31,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075123506] [2022-11-23 02:58:31,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075123506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:58:31,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:58:31,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 02:58:31,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717156185] [2022-11-23 02:58:31,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:58:31,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 02:58:31,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:58:31,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:58:31,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:58:31,660 INFO L87 Difference]: Start difference. First operand 5453 states and 9139 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:58:34,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:58:34,653 INFO L93 Difference]: Finished difference Result 14084 states and 22827 transitions. [2022-11-23 02:58:34,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 02:58:34,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-11-23 02:58:34,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:58:34,727 INFO L225 Difference]: With dead ends: 14084 [2022-11-23 02:58:34,727 INFO L226 Difference]: Without dead ends: 10768 [2022-11-23 02:58:34,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-23 02:58:34,746 INFO L413 NwaCegarLoop]: 4296 mSDtfsCounter, 4789 mSDsluCounter, 16938 mSDsCounter, 0 mSdLazyCounter, 2077 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 21234 SdHoareTripleChecker+Invalid, 2135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 02:58:34,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4802 Valid, 21234 Invalid, 2135 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 2077 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 02:58:34,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10768 states. [2022-11-23 02:58:35,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10768 to 8767. [2022-11-23 02:58:35,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8767 states, 8054 states have (on average 1.6240377452197665) internal successors, (13080), 8088 states have internal predecessors, (13080), 487 states have call successors, (487), 192 states have call predecessors, (487), 224 states have return successors, (794), 518 states have call predecessors, (794), 487 states have call successors, (794) [2022-11-23 02:58:35,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8767 states to 8767 states and 14361 transitions. [2022-11-23 02:58:35,726 INFO L78 Accepts]: Start accepts. Automaton has 8767 states and 14361 transitions. Word has length 112 [2022-11-23 02:58:35,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:58:35,726 INFO L495 AbstractCegarLoop]: Abstraction has 8767 states and 14361 transitions. [2022-11-23 02:58:35,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:58:35,727 INFO L276 IsEmpty]: Start isEmpty. Operand 8767 states and 14361 transitions. [2022-11-23 02:58:35,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-23 02:58:35,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:58:35,736 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:58:35,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 02:58:35,736 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:58:35,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:58:35,737 INFO L85 PathProgramCache]: Analyzing trace with hash 596579489, now seen corresponding path program 1 times [2022-11-23 02:58:35,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:58:35,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917239848] [2022-11-23 02:58:35,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:58:35,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:58:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:35,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 02:58:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:35,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-23 02:58:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:35,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-23 02:58:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:35,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-23 02:58:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:35,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-23 02:58:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:35,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:58:35,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:58:35,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917239848] [2022-11-23 02:58:35,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917239848] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:58:35,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:58:35,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 02:58:35,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589460536] [2022-11-23 02:58:35,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:58:35,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 02:58:35,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:58:35,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:58:35,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:58:35,972 INFO L87 Difference]: Start difference. First operand 8767 states and 14361 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:58:39,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:58:39,710 INFO L93 Difference]: Finished difference Result 25942 states and 41783 transitions. [2022-11-23 02:58:39,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 02:58:39,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-11-23 02:58:39,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:58:39,788 INFO L225 Difference]: With dead ends: 25942 [2022-11-23 02:58:39,788 INFO L226 Difference]: Without dead ends: 19312 [2022-11-23 02:58:39,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-23 02:58:39,813 INFO L413 NwaCegarLoop]: 4296 mSDtfsCounter, 4789 mSDsluCounter, 16938 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 21234 SdHoareTripleChecker+Invalid, 2126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 02:58:39,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4802 Valid, 21234 Invalid, 2126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 02:58:39,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19312 states. [2022-11-23 02:58:41,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19312 to 15425. [2022-11-23 02:58:41,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15425 states, 14008 states have (on average 1.5862364363221018) internal successors, (22220), 14074 states have internal predecessors, (22220), 967 states have call successors, (967), 384 states have call predecessors, (967), 448 states have return successors, (1824), 1030 states have call predecessors, (1824), 967 states have call successors, (1824) [2022-11-23 02:58:41,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15425 states to 15425 states and 25011 transitions. [2022-11-23 02:58:41,300 INFO L78 Accepts]: Start accepts. Automaton has 15425 states and 25011 transitions. Word has length 112 [2022-11-23 02:58:41,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:58:41,301 INFO L495 AbstractCegarLoop]: Abstraction has 15425 states and 25011 transitions. [2022-11-23 02:58:41,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:58:41,301 INFO L276 IsEmpty]: Start isEmpty. Operand 15425 states and 25011 transitions. [2022-11-23 02:58:41,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-23 02:58:41,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:58:41,313 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:58:41,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 02:58:41,314 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:58:41,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:58:41,314 INFO L85 PathProgramCache]: Analyzing trace with hash -174154077, now seen corresponding path program 1 times [2022-11-23 02:58:41,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:58:41,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054473286] [2022-11-23 02:58:41,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:58:41,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:58:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:41,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 02:58:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:41,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-23 02:58:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:41,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-23 02:58:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:41,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-23 02:58:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:41,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-23 02:58:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:41,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:58:41,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:58:41,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054473286] [2022-11-23 02:58:41,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054473286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:58:41,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:58:41,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 02:58:41,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781656940] [2022-11-23 02:58:41,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:58:41,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 02:58:41,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:58:41,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:58:41,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:58:41,497 INFO L87 Difference]: Start difference. First operand 15425 states and 25011 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:58:47,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:58:47,715 INFO L93 Difference]: Finished difference Result 55608 states and 89253 transitions. [2022-11-23 02:58:47,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 02:58:47,715 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-11-23 02:58:47,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:58:47,896 INFO L225 Difference]: With dead ends: 55608 [2022-11-23 02:58:47,896 INFO L226 Difference]: Without dead ends: 42320 [2022-11-23 02:58:47,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-23 02:58:47,955 INFO L413 NwaCegarLoop]: 4294 mSDtfsCounter, 5047 mSDsluCounter, 16930 mSDsCounter, 0 mSdLazyCounter, 2047 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5067 SdHoareTripleChecker+Valid, 21224 SdHoareTripleChecker+Invalid, 2110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:58:47,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5067 Valid, 21224 Invalid, 2110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2047 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-23 02:58:47,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42320 states. [2022-11-23 02:58:50,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42320 to 28611. [2022-11-23 02:58:50,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28611 states, 25850 states have (on average 1.565338491295938) internal successors, (40464), 25980 states have internal predecessors, (40464), 1863 states have call successors, (1863), 768 states have call predecessors, (1863), 896 states have return successors, (4306), 1990 states have call predecessors, (4306), 1863 states have call successors, (4306) [2022-11-23 02:58:50,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28611 states to 28611 states and 46633 transitions. [2022-11-23 02:58:50,518 INFO L78 Accepts]: Start accepts. Automaton has 28611 states and 46633 transitions. Word has length 112 [2022-11-23 02:58:50,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:58:50,519 INFO L495 AbstractCegarLoop]: Abstraction has 28611 states and 46633 transitions. [2022-11-23 02:58:50,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:58:50,519 INFO L276 IsEmpty]: Start isEmpty. Operand 28611 states and 46633 transitions. [2022-11-23 02:58:50,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-23 02:58:50,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:58:50,540 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:58:50,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 02:58:50,541 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:58:50,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:58:50,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1168847775, now seen corresponding path program 1 times [2022-11-23 02:58:50,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:58:50,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348788362] [2022-11-23 02:58:50,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:58:50,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:58:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:50,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 02:58:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:50,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-23 02:58:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:50,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-23 02:58:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:50,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-23 02:58:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:50,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-23 02:58:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:58:50,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:58:50,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:58:50,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348788362] [2022-11-23 02:58:50,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348788362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:58:50,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:58:50,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 02:58:50,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010360014] [2022-11-23 02:58:50,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:58:50,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 02:58:50,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:58:50,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:58:50,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:58:50,730 INFO L87 Difference]: Start difference. First operand 28611 states and 46633 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:59:01,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:59:01,228 INFO L93 Difference]: Finished difference Result 105085 states and 171193 transitions. [2022-11-23 02:59:01,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 02:59:01,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-11-23 02:59:01,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:59:01,577 INFO L225 Difference]: With dead ends: 105085 [2022-11-23 02:59:01,578 INFO L226 Difference]: Without dead ends: 78611 [2022-11-23 02:59:01,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-23 02:59:01,681 INFO L413 NwaCegarLoop]: 4294 mSDtfsCounter, 4982 mSDsluCounter, 16930 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5002 SdHoareTripleChecker+Valid, 21224 SdHoareTripleChecker+Invalid, 2055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 02:59:01,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5002 Valid, 21224 Invalid, 2055 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 02:59:01,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78611 states. [2022-11-23 02:59:07,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78611 to 55045. [2022-11-23 02:59:07,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55045 states, 49660 states have (on average 1.5559403946838501) internal successors, (77268), 49918 states have internal predecessors, (77268), 3591 states have call successors, (3591), 1536 states have call predecessors, (3591), 1792 states have return successors, (10664), 3846 states have call predecessors, (10664), 3591 states have call successors, (10664) [2022-11-23 02:59:07,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55045 states to 55045 states and 91523 transitions. [2022-11-23 02:59:07,608 INFO L78 Accepts]: Start accepts. Automaton has 55045 states and 91523 transitions. Word has length 112 [2022-11-23 02:59:07,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:59:07,609 INFO L495 AbstractCegarLoop]: Abstraction has 55045 states and 91523 transitions. [2022-11-23 02:59:07,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 02:59:07,609 INFO L276 IsEmpty]: Start isEmpty. Operand 55045 states and 91523 transitions. [2022-11-23 02:59:07,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-23 02:59:07,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:59:07,653 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:59:07,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 02:59:07,653 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:59:07,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:59:07,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1167544735, now seen corresponding path program 1 times [2022-11-23 02:59:07,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:59:07,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811275433] [2022-11-23 02:59:07,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:59:07,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:59:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:59:07,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 02:59:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:59:07,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-23 02:59:07,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:59:07,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-23 02:59:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:59:08,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-23 02:59:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:59:08,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-23 02:59:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:59:08,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:59:08,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:59:08,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811275433] [2022-11-23 02:59:08,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811275433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:59:08,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:59:08,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 02:59:08,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245795646] [2022-11-23 02:59:08,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:59:08,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 02:59:08,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:59:08,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:59:08,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:59:08,015 INFO L87 Difference]: Start difference. First operand 55045 states and 91523 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)