./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 64bit --witnessprinter.graph.data.programhash d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 10:04:08,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 10:04:08,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 10:04:08,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 10:04:08,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 10:04:08,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 10:04:08,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 10:04:08,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 10:04:08,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 10:04:08,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 10:04:08,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 10:04:08,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 10:04:08,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 10:04:08,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 10:04:08,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 10:04:08,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 10:04:08,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 10:04:08,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 10:04:08,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 10:04:08,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 10:04:08,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 10:04:08,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 10:04:08,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 10:04:08,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 10:04:08,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 10:04:08,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 10:04:08,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 10:04:08,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 10:04:08,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 10:04:08,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 10:04:08,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 10:04:08,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 10:04:08,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 10:04:08,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 10:04:08,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 10:04:08,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 10:04:08,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 10:04:08,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 10:04:08,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 10:04:08,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 10:04:08,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 10:04:08,267 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 10:04:08,297 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 10:04:08,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 10:04:08,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 10:04:08,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 10:04:08,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 10:04:08,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 10:04:08,299 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 10:04:08,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 10:04:08,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 10:04:08,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 10:04:08,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 10:04:08,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 10:04:08,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 10:04:08,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 10:04:08,301 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 10:04:08,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 10:04:08,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 10:04:08,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 10:04:08,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 10:04:08,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:04:08,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 10:04:08,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 10:04:08,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 10:04:08,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 10:04:08,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 10:04:08,303 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 10:04:08,303 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 10:04:08,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 10:04:08,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 10:04:08,304 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 [2021-11-07 10:04:08,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 10:04:08,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 10:04:08,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 10:04:08,515 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 10:04:08,516 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 10:04:08,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2021-11-07 10:04:08,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c1555271/6f5ba8011c104ca085e2dd78a3706579/FLAGb33fe8fd5 [2021-11-07 10:04:09,194 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 10:04:09,195 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2021-11-07 10:04:09,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c1555271/6f5ba8011c104ca085e2dd78a3706579/FLAGb33fe8fd5 [2021-11-07 10:04:09,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c1555271/6f5ba8011c104ca085e2dd78a3706579 [2021-11-07 10:04:09,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 10:04:09,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 10:04:09,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 10:04:09,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 10:04:09,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 10:04:09,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:04:09" (1/1) ... [2021-11-07 10:04:09,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68eb4c44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:04:09, skipping insertion in model container [2021-11-07 10:04:09,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:04:09" (1/1) ... [2021-11-07 10:04:09,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 10:04:09,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 10:04:09,921 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2021-11-07 10:04:09,933 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2021-11-07 10:04:09,958 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:04:09,962 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:04:10,579 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:10,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:10,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:10,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:10,582 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:10,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:10,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:10,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:10,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:10,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:10,599 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:10,599 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:10,600 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:10,892 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:04:10,894 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:04:10,895 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:04:10,896 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:04:10,897 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:04:10,897 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:04:10,898 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:04:10,906 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:04:10,907 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:04:10,908 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:04:11,039 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:04:11,056 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,060 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,093 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,093 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,096 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,096 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,097 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,097 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,097 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,097 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,098 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,104 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,105 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,113 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,115 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,116 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:04:11,157 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 10:04:11,192 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2021-11-07 10:04:11,193 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2021-11-07 10:04:11,198 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:04:11,200 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:04:11,240 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,240 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,240 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,241 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,241 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,245 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,245 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,246 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,246 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,278 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:04:11,278 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:04:11,279 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:04:11,280 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:04:11,280 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:04:11,281 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:04:11,281 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:04:11,282 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:04:11,282 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:04:11,283 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:04:11,300 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:04:11,316 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,333 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,357 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,358 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,358 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,359 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,359 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,359 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,360 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,360 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,360 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,361 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,361 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,361 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,362 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,363 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,364 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,364 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,365 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,366 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,367 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,373 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,375 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:04:11,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:04:11,545 INFO L208 MainTranslator]: Completed translation [2021-11-07 10:04:11,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:04:11 WrapperNode [2021-11-07 10:04:11,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 10:04:11,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 10:04:11,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 10:04:11,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 10:04:11,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:04:11" (1/1) ... [2021-11-07 10:04:11,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:04:11" (1/1) ... [2021-11-07 10:04:11,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 10:04:11,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 10:04:11,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 10:04:11,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 10:04:11,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:04:11" (1/1) ... [2021-11-07 10:04:11,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:04:11" (1/1) ... [2021-11-07 10:04:11,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:04:11" (1/1) ... [2021-11-07 10:04:11,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:04:11" (1/1) ... [2021-11-07 10:04:12,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:04:11" (1/1) ... [2021-11-07 10:04:12,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:04:11" (1/1) ... [2021-11-07 10:04:12,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:04:11" (1/1) ... [2021-11-07 10:04:12,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 10:04:12,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 10:04:12,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 10:04:12,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 10:04:12,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:04:11" (1/1) ... [2021-11-07 10:04:12,329 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:04:12,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:04:12,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 10:04:12,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 10:04:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 10:04:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 10:04:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 10:04:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 10:04:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 10:04:12,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 10:04:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 10:04:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 10:04:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 10:04:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 10:04:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 10:04:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 10:04:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 10:04:27,803 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 10:04:27,804 INFO L299 CfgBuilder]: Removed 1945 assume(true) statements. [2021-11-07 10:04:27,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:04:27 BoogieIcfgContainer [2021-11-07 10:04:27,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 10:04:27,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 10:04:27,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 10:04:27,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 10:04:27,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:04:09" (1/3) ... [2021-11-07 10:04:27,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2d31a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:04:27, skipping insertion in model container [2021-11-07 10:04:27,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:04:11" (2/3) ... [2021-11-07 10:04:27,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2d31a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:04:27, skipping insertion in model container [2021-11-07 10:04:27,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:04:27" (3/3) ... [2021-11-07 10:04:27,836 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_harness.i [2021-11-07 10:04:27,840 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 10:04:27,840 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2021-11-07 10:04:27,894 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 10:04:27,899 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 10:04:27,900 INFO L340 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2021-11-07 10:04:27,941 INFO L276 IsEmpty]: Start isEmpty. Operand has 2417 states, 2352 states have (on average 1.4136904761904763) internal successors, (3325), 2416 states have internal predecessors, (3325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:27,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 10:04:27,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:04:27,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:04:27,952 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:04:27,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:04:27,956 INFO L85 PathProgramCache]: Analyzing trace with hash -938316165, now seen corresponding path program 1 times [2021-11-07 10:04:27,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:04:27,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407928422] [2021-11-07 10:04:27,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:04:27,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:04:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:04:28,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:04:28,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:04:28,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407928422] [2021-11-07 10:04:28,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407928422] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:04:28,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:04:28,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 10:04:28,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155102003] [2021-11-07 10:04:28,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:04:28,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 10:04:28,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:04:28,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 10:04:28,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 10:04:28,527 INFO L87 Difference]: Start difference. First operand has 2417 states, 2352 states have (on average 1.4136904761904763) internal successors, (3325), 2416 states have internal predecessors, (3325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:28,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:04:28,711 INFO L93 Difference]: Finished difference Result 4828 states and 6643 transitions. [2021-11-07 10:04:28,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 10:04:28,713 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-07 10:04:28,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:04:28,734 INFO L225 Difference]: With dead ends: 4828 [2021-11-07 10:04:28,734 INFO L226 Difference]: Without dead ends: 2412 [2021-11-07 10:04:28,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 10:04:28,746 INFO L933 BasicCegarLoop]: 3124 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3124 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.19ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 10:04:28,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 3124 Invalid, 0 Unknown, 0 Unchecked, 10.19ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 10:04:28,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2021-11-07 10:04:28,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2412. [2021-11-07 10:04:28,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2348 states have (on average 1.3283645655877343) internal successors, (3119), 2411 states have internal predecessors, (3119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:28,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3119 transitions. [2021-11-07 10:04:28,856 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3119 transitions. Word has length 68 [2021-11-07 10:04:28,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:04:28,856 INFO L470 AbstractCegarLoop]: Abstraction has 2412 states and 3119 transitions. [2021-11-07 10:04:28,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:28,857 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3119 transitions. [2021-11-07 10:04:28,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 10:04:28,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:04:28,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:04:28,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 10:04:28,860 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:04:28,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:04:28,860 INFO L85 PathProgramCache]: Analyzing trace with hash -438718995, now seen corresponding path program 1 times [2021-11-07 10:04:28,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:04:28,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758627826] [2021-11-07 10:04:28,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:04:28,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:04:28,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:04:29,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:04:29,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:04:29,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758627826] [2021-11-07 10:04:29,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758627826] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:04:29,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:04:29,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:04:29,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860241224] [2021-11-07 10:04:29,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:04:29,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:04:29,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:04:29,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:04:29,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:04:29,140 INFO L87 Difference]: Start difference. First operand 2412 states and 3119 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:29,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:04:29,415 INFO L93 Difference]: Finished difference Result 4744 states and 6133 transitions. [2021-11-07 10:04:29,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 10:04:29,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-07 10:04:29,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:04:29,422 INFO L225 Difference]: With dead ends: 4744 [2021-11-07 10:04:29,423 INFO L226 Difference]: Without dead ends: 2412 [2021-11-07 10:04:29,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.90ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:04:29,428 INFO L933 BasicCegarLoop]: 3104 mSDtfsCounter, 3313 mSDsluCounter, 2860 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 144.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3313 SdHoareTripleChecker+Valid, 5964 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.18ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 167.55ms IncrementalHoareTripleChecker+Time [2021-11-07 10:04:29,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3313 Valid, 5964 Invalid, 54 Unknown, 0 Unchecked, 15.18ms Time], IncrementalHoareTripleChecker [5 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 167.55ms Time] [2021-11-07 10:04:29,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2021-11-07 10:04:29,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2412. [2021-11-07 10:04:29,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2348 states have (on average 1.3270868824531517) internal successors, (3116), 2411 states have internal predecessors, (3116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:29,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3116 transitions. [2021-11-07 10:04:29,475 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3116 transitions. Word has length 68 [2021-11-07 10:04:29,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:04:29,476 INFO L470 AbstractCegarLoop]: Abstraction has 2412 states and 3116 transitions. [2021-11-07 10:04:29,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:29,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3116 transitions. [2021-11-07 10:04:29,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-07 10:04:29,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:04:29,485 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:04:29,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 10:04:29,486 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:04:29,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:04:29,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1398884469, now seen corresponding path program 1 times [2021-11-07 10:04:29,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:04:29,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646703299] [2021-11-07 10:04:29,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:04:29,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:04:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:04:29,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:04:29,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:04:29,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646703299] [2021-11-07 10:04:29,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646703299] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:04:29,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:04:29,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:04:29,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977656269] [2021-11-07 10:04:29,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:04:29,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:04:29,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:04:29,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:04:29,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:04:29,760 INFO L87 Difference]: Start difference. First operand 2412 states and 3116 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:32,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:04:32,808 INFO L93 Difference]: Finished difference Result 6605 states and 8475 transitions. [2021-11-07 10:04:32,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:04:32,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-07 10:04:32,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:04:32,821 INFO L225 Difference]: With dead ends: 6605 [2021-11-07 10:04:32,822 INFO L226 Difference]: Without dead ends: 4241 [2021-11-07 10:04:32,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 86.94ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:04:32,828 INFO L933 BasicCegarLoop]: 3083 mSDtfsCounter, 7896 mSDsluCounter, 5136 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2475.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7896 SdHoareTripleChecker+Valid, 8219 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.45ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2768.70ms IncrementalHoareTripleChecker+Time [2021-11-07 10:04:32,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7896 Valid, 8219 Invalid, 855 Unknown, 0 Unchecked, 32.45ms Time], IncrementalHoareTripleChecker [20 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 2768.70ms Time] [2021-11-07 10:04:32,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4241 states. [2021-11-07 10:04:32,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4241 to 2412. [2021-11-07 10:04:32,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2348 states have (on average 1.325809199318569) internal successors, (3113), 2411 states have internal predecessors, (3113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:32,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3113 transitions. [2021-11-07 10:04:32,892 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3113 transitions. Word has length 76 [2021-11-07 10:04:32,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:04:32,893 INFO L470 AbstractCegarLoop]: Abstraction has 2412 states and 3113 transitions. [2021-11-07 10:04:32,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:32,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3113 transitions. [2021-11-07 10:04:32,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-07 10:04:32,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:04:32,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:04:32,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 10:04:32,895 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:04:32,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:04:32,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1863320387, now seen corresponding path program 1 times [2021-11-07 10:04:32,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:04:32,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244535540] [2021-11-07 10:04:32,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:04:32,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:04:32,995 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:04:32,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1600166769] [2021-11-07 10:04:32,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:04:32,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:04:32,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:04:33,016 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:04:33,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 10:04:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:04:33,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 2770 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 10:04:33,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:04:34,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:04:34,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:04:34,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:04:34,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244535540] [2021-11-07 10:04:34,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:04:34,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600166769] [2021-11-07 10:04:34,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600166769] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:04:34,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:04:34,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:04:34,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378531986] [2021-11-07 10:04:34,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:04:34,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:04:34,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:04:34,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:04:34,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:04:34,270 INFO L87 Difference]: Start difference. First operand 2412 states and 3113 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:36,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:04:36,103 INFO L93 Difference]: Finished difference Result 6681 states and 8583 transitions. [2021-11-07 10:04:36,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 10:04:36,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-11-07 10:04:36,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:04:36,117 INFO L225 Difference]: With dead ends: 6681 [2021-11-07 10:04:36,117 INFO L226 Difference]: Without dead ends: 4348 [2021-11-07 10:04:36,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 146.79ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-07 10:04:36,122 INFO L933 BasicCegarLoop]: 2961 mSDtfsCounter, 13970 mSDsluCounter, 5470 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1300.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13970 SdHoareTripleChecker+Valid, 8431 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.16ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1454.53ms IncrementalHoareTripleChecker+Time [2021-11-07 10:04:36,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13970 Valid, 8431 Invalid, 509 Unknown, 0 Unchecked, 22.16ms Time], IncrementalHoareTripleChecker [20 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 1454.53ms Time] [2021-11-07 10:04:36,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4348 states. [2021-11-07 10:04:36,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4348 to 2412. [2021-11-07 10:04:36,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2348 states have (on average 1.3245315161839863) internal successors, (3110), 2411 states have internal predecessors, (3110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:36,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3110 transitions. [2021-11-07 10:04:36,189 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3110 transitions. Word has length 92 [2021-11-07 10:04:36,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:04:36,190 INFO L470 AbstractCegarLoop]: Abstraction has 2412 states and 3110 transitions. [2021-11-07 10:04:36,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:36,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3110 transitions. [2021-11-07 10:04:36,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-07 10:04:36,191 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:04:36,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:04:36,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-07 10:04:36,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:04:36,408 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:04:36,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:04:36,408 INFO L85 PathProgramCache]: Analyzing trace with hash 2019865383, now seen corresponding path program 1 times [2021-11-07 10:04:36,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:04:36,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381740168] [2021-11-07 10:04:36,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:04:36,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:04:36,507 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:04:36,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28060511] [2021-11-07 10:04:36,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:04:36,508 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:04:36,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:04:36,509 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:04:36,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 10:04:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:04:37,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 2875 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 10:04:37,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:04:37,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:04:37,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:04:37,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:04:37,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381740168] [2021-11-07 10:04:37,795 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:04:37,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28060511] [2021-11-07 10:04:37,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28060511] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:04:37,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:04:37,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:04:37,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213077632] [2021-11-07 10:04:37,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:04:37,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 10:04:37,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:04:37,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 10:04:37,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:04:37,796 INFO L87 Difference]: Start difference. First operand 2412 states and 3110 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:41,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:04:41,948 INFO L93 Difference]: Finished difference Result 6697 states and 8601 transitions. [2021-11-07 10:04:41,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 10:04:41,949 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-07 10:04:41,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:04:41,985 INFO L225 Difference]: With dead ends: 6697 [2021-11-07 10:04:41,986 INFO L226 Difference]: Without dead ends: 4348 [2021-11-07 10:04:42,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 223.83ms TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2021-11-07 10:04:42,006 INFO L933 BasicCegarLoop]: 2928 mSDtfsCounter, 14168 mSDsluCounter, 7618 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3367.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14168 SdHoareTripleChecker+Valid, 10546 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.10ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3765.57ms IncrementalHoareTripleChecker+Time [2021-11-07 10:04:42,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14168 Valid, 10546 Invalid, 1313 Unknown, 0 Unchecked, 29.10ms Time], IncrementalHoareTripleChecker [46 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 3765.57ms Time] [2021-11-07 10:04:42,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4348 states. [2021-11-07 10:04:42,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4348 to 2412. [2021-11-07 10:04:42,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2348 states have (on average 1.3232538330494037) internal successors, (3107), 2411 states have internal predecessors, (3107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:42,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3107 transitions. [2021-11-07 10:04:42,124 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3107 transitions. Word has length 116 [2021-11-07 10:04:42,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:04:42,126 INFO L470 AbstractCegarLoop]: Abstraction has 2412 states and 3107 transitions. [2021-11-07 10:04:42,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:42,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3107 transitions. [2021-11-07 10:04:42,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-07 10:04:42,127 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:04:42,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:04:42,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 10:04:42,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:04:42,344 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:04:42,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:04:42,344 INFO L85 PathProgramCache]: Analyzing trace with hash 584501871, now seen corresponding path program 1 times [2021-11-07 10:04:42,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:04:42,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786040809] [2021-11-07 10:04:42,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:04:42,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:04:42,455 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:04:42,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [406362359] [2021-11-07 10:04:42,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:04:42,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:04:42,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:04:42,472 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:04:42,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 10:04:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:04:43,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 3065 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 10:04:43,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:04:43,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:04:43,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:04:43,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:04:43,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786040809] [2021-11-07 10:04:43,986 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:04:43,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406362359] [2021-11-07 10:04:43,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406362359] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:04:43,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:04:43,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:04:43,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438669834] [2021-11-07 10:04:43,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:04:43,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:04:43,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:04:43,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:04:43,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:04:43,988 INFO L87 Difference]: Start difference. First operand 2412 states and 3107 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:44,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:04:44,880 INFO L93 Difference]: Finished difference Result 4631 states and 5963 transitions. [2021-11-07 10:04:44,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 10:04:44,881 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-11-07 10:04:44,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:04:44,887 INFO L225 Difference]: With dead ends: 4631 [2021-11-07 10:04:44,887 INFO L226 Difference]: Without dead ends: 2412 [2021-11-07 10:04:44,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 110.66ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-07 10:04:44,891 INFO L933 BasicCegarLoop]: 2971 mSDtfsCounter, 10907 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 653.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10907 SdHoareTripleChecker+Valid, 4284 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.47ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 734.62ms IncrementalHoareTripleChecker+Time [2021-11-07 10:04:44,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10907 Valid, 4284 Invalid, 231 Unknown, 0 Unchecked, 9.47ms Time], IncrementalHoareTripleChecker [13 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 734.62ms Time] [2021-11-07 10:04:44,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2021-11-07 10:04:44,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2412. [2021-11-07 10:04:44,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2348 states have (on average 1.3224020442930153) internal successors, (3105), 2411 states have internal predecessors, (3105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:44,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3105 transitions. [2021-11-07 10:04:44,945 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3105 transitions. Word has length 132 [2021-11-07 10:04:44,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:04:44,946 INFO L470 AbstractCegarLoop]: Abstraction has 2412 states and 3105 transitions. [2021-11-07 10:04:44,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:44,946 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3105 transitions. [2021-11-07 10:04:44,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-07 10:04:44,949 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:04:44,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:04:44,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 10:04:45,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:04:45,186 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:04:45,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:04:45,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1488405602, now seen corresponding path program 1 times [2021-11-07 10:04:45,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:04:45,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915544377] [2021-11-07 10:04:45,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:04:45,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:04:45,253 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:04:45,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1614039728] [2021-11-07 10:04:45,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:04:45,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:04:45,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:04:45,255 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:04:45,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 10:04:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:04:45,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 3096 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 10:04:45,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:04:46,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:04:46,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:04:46,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:04:46,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915544377] [2021-11-07 10:04:46,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:04:46,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614039728] [2021-11-07 10:04:46,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614039728] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:04:46,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:04:46,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:04:46,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339797174] [2021-11-07 10:04:46,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:04:46,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:04:46,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:04:46,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:04:46,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:04:46,606 INFO L87 Difference]: Start difference. First operand 2412 states and 3105 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:49,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:04:49,390 INFO L93 Difference]: Finished difference Result 5310 states and 6806 transitions. [2021-11-07 10:04:49,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 10:04:49,391 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-11-07 10:04:49,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:04:49,402 INFO L225 Difference]: With dead ends: 5310 [2021-11-07 10:04:49,402 INFO L226 Difference]: Without dead ends: 3059 [2021-11-07 10:04:49,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 170.81ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-07 10:04:49,408 INFO L933 BasicCegarLoop]: 3054 mSDtfsCounter, 10296 mSDsluCounter, 3628 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2228.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10296 SdHoareTripleChecker+Valid, 6682 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.86ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2501.26ms IncrementalHoareTripleChecker+Time [2021-11-07 10:04:49,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10296 Valid, 6682 Invalid, 849 Unknown, 0 Unchecked, 17.86ms Time], IncrementalHoareTripleChecker [32 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 2501.26ms Time] [2021-11-07 10:04:49,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2021-11-07 10:04:49,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 2412. [2021-11-07 10:04:49,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2348 states have (on average 1.321550255536627) internal successors, (3103), 2411 states have internal predecessors, (3103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:49,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3103 transitions. [2021-11-07 10:04:49,542 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3103 transitions. Word has length 136 [2021-11-07 10:04:49,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:04:49,544 INFO L470 AbstractCegarLoop]: Abstraction has 2412 states and 3103 transitions. [2021-11-07 10:04:49,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:49,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3103 transitions. [2021-11-07 10:04:49,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-07 10:04:49,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:04:49,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:04:49,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 10:04:49,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:04:49,749 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:04:49,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:04:49,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1661426758, now seen corresponding path program 1 times [2021-11-07 10:04:49,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:04:49,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006515605] [2021-11-07 10:04:49,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:04:49,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:04:49,823 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:04:49,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [71388703] [2021-11-07 10:04:49,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:04:49,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:04:49,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:04:49,824 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:04:49,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 10:04:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:04:50,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 3191 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 10:04:50,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:04:51,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:04:51,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:04:51,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:04:51,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006515605] [2021-11-07 10:04:51,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:04:51,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71388703] [2021-11-07 10:04:51,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71388703] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:04:51,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:04:51,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:04:51,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025322710] [2021-11-07 10:04:51,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:04:51,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 10:04:51,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:04:51,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 10:04:51,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:04:51,402 INFO L87 Difference]: Start difference. First operand 2412 states and 3103 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:53,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:04:53,038 INFO L93 Difference]: Finished difference Result 5338 states and 6845 transitions. [2021-11-07 10:04:53,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 10:04:53,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2021-11-07 10:04:53,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:04:53,048 INFO L225 Difference]: With dead ends: 5338 [2021-11-07 10:04:53,048 INFO L226 Difference]: Without dead ends: 3118 [2021-11-07 10:04:53,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 275.25ms TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2021-11-07 10:04:53,052 INFO L933 BasicCegarLoop]: 2932 mSDtfsCounter, 16266 mSDsluCounter, 2451 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1135.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16266 SdHoareTripleChecker+Valid, 5383 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.01ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1267.83ms IncrementalHoareTripleChecker+Time [2021-11-07 10:04:53,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16266 Valid, 5383 Invalid, 407 Unknown, 0 Unchecked, 19.01ms Time], IncrementalHoareTripleChecker [37 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 1267.83ms Time] [2021-11-07 10:04:53,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3118 states. [2021-11-07 10:04:53,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3118 to 2412. [2021-11-07 10:04:53,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2348 states have (on average 1.3206984667802386) internal successors, (3101), 2411 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:53,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3101 transitions. [2021-11-07 10:04:53,129 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3101 transitions. Word has length 144 [2021-11-07 10:04:53,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:04:53,130 INFO L470 AbstractCegarLoop]: Abstraction has 2412 states and 3101 transitions. [2021-11-07 10:04:53,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:53,130 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3101 transitions. [2021-11-07 10:04:53,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-07 10:04:53,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:04:53,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:04:53,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 10:04:53,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:04:53,356 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:04:53,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:04:53,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1690290133, now seen corresponding path program 1 times [2021-11-07 10:04:53,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:04:53,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275882446] [2021-11-07 10:04:53,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:04:53,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:04:53,432 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:04:53,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [144651605] [2021-11-07 10:04:53,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:04:53,432 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:04:53,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:04:53,448 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:04:53,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 10:04:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:04:54,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 3243 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 10:04:54,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:04:54,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:04:54,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:04:54,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:04:54,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275882446] [2021-11-07 10:04:54,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:04:54,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144651605] [2021-11-07 10:04:54,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144651605] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:04:54,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:04:54,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:04:54,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893915889] [2021-11-07 10:04:54,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:04:54,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:04:54,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:04:54,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:04:54,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:04:54,534 INFO L87 Difference]: Start difference. First operand 2412 states and 3101 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:55,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:04:55,083 INFO L93 Difference]: Finished difference Result 4805 states and 6179 transitions. [2021-11-07 10:04:55,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:04:55,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2021-11-07 10:04:55,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:04:55,093 INFO L225 Difference]: With dead ends: 4805 [2021-11-07 10:04:55,093 INFO L226 Difference]: Without dead ends: 2460 [2021-11-07 10:04:55,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.65ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:04:55,096 INFO L933 BasicCegarLoop]: 3093 mSDtfsCounter, 26 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 394.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 9163 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.09ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 449.90ms IncrementalHoareTripleChecker+Time [2021-11-07 10:04:55,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 9163 Invalid, 235 Unknown, 0 Unchecked, 8.09ms Time], IncrementalHoareTripleChecker [45 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 449.90ms Time] [2021-11-07 10:04:55,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2021-11-07 10:04:55,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 2436. [2021-11-07 10:04:55,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2436 states, 2372 states have (on average 1.3174536256323777) internal successors, (3125), 2435 states have internal predecessors, (3125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:55,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2436 states to 2436 states and 3125 transitions. [2021-11-07 10:04:55,178 INFO L78 Accepts]: Start accepts. Automaton has 2436 states and 3125 transitions. Word has length 156 [2021-11-07 10:04:55,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:04:55,178 INFO L470 AbstractCegarLoop]: Abstraction has 2436 states and 3125 transitions. [2021-11-07 10:04:55,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:04:55,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2436 states and 3125 transitions. [2021-11-07 10:04:55,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-07 10:04:55,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:04:55,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:04:55,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-07 10:04:55,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:04:55,411 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:04:55,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:04:55,412 INFO L85 PathProgramCache]: Analyzing trace with hash -2084656919, now seen corresponding path program 1 times [2021-11-07 10:04:55,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:04:55,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228766232] [2021-11-07 10:04:55,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:04:55,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:04:55,479 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:04:55,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237066555] [2021-11-07 10:04:55,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:04:55,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:04:55,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:04:55,496 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:04:55,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 10:04:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:04:56,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 3238 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 10:04:56,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:04:56,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:04:56,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:04:56,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:04:56,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228766232] [2021-11-07 10:04:56,940 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:04:56,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237066555] [2021-11-07 10:04:56,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237066555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:04:56,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:04:56,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 10:04:56,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438979360] [2021-11-07 10:04:56,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:04:56,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 10:04:56,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:04:56,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 10:04:56,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-07 10:04:56,941 INFO L87 Difference]: Start difference. First operand 2436 states and 3125 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:00,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:05:00,839 INFO L93 Difference]: Finished difference Result 5398 states and 6909 transitions. [2021-11-07 10:05:00,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 10:05:00,839 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2021-11-07 10:05:00,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:05:00,850 INFO L225 Difference]: With dead ends: 5398 [2021-11-07 10:05:00,850 INFO L226 Difference]: Without dead ends: 3142 [2021-11-07 10:05:00,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 303.81ms TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2021-11-07 10:05:00,853 INFO L933 BasicCegarLoop]: 2880 mSDtfsCounter, 16567 mSDsluCounter, 4479 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3032.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16567 SdHoareTripleChecker+Valid, 7359 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.18ms SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3400.45ms IncrementalHoareTripleChecker+Time [2021-11-07 10:05:00,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16567 Valid, 7359 Invalid, 1235 Unknown, 0 Unchecked, 21.18ms Time], IncrementalHoareTripleChecker [89 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 3400.45ms Time] [2021-11-07 10:05:00,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3142 states. [2021-11-07 10:05:00,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3142 to 2436. [2021-11-07 10:05:00,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2436 states, 2372 states have (on average 1.316610455311973) internal successors, (3123), 2435 states have internal predecessors, (3123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:00,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2436 states to 2436 states and 3123 transitions. [2021-11-07 10:05:00,914 INFO L78 Accepts]: Start accepts. Automaton has 2436 states and 3123 transitions. Word has length 156 [2021-11-07 10:05:00,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:05:00,915 INFO L470 AbstractCegarLoop]: Abstraction has 2436 states and 3123 transitions. [2021-11-07 10:05:00,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:00,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2436 states and 3123 transitions. [2021-11-07 10:05:00,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-07 10:05:00,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:05:00,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:05:00,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 10:05:01,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:01,130 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:05:01,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:05:01,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1933015475, now seen corresponding path program 1 times [2021-11-07 10:05:01,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:05:01,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599191150] [2021-11-07 10:05:01,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:01,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:05:01,185 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:05:01,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [80311709] [2021-11-07 10:05:01,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:01,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:01,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:05:01,187 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:05:01,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-07 10:05:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:05:01,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 3333 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 10:05:01,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:05:02,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:05:02,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:05:02,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:05:02,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599191150] [2021-11-07 10:05:02,896 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:05:02,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80311709] [2021-11-07 10:05:02,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80311709] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:05:02,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:05:02,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:05:02,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426376675] [2021-11-07 10:05:02,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:05:02,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 10:05:02,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:05:02,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 10:05:02,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:05:02,897 INFO L87 Difference]: Start difference. First operand 2436 states and 3123 transitions. Second operand has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:05,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:05:05,669 INFO L93 Difference]: Finished difference Result 4653 states and 5967 transitions. [2021-11-07 10:05:05,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 10:05:05,670 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2021-11-07 10:05:05,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:05:05,674 INFO L225 Difference]: With dead ends: 4653 [2021-11-07 10:05:05,674 INFO L226 Difference]: Without dead ends: 2436 [2021-11-07 10:05:05,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 164.77ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-07 10:05:05,678 INFO L933 BasicCegarLoop]: 2942 mSDtfsCounter, 12016 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2261.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12016 SdHoareTripleChecker+Valid, 5465 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.44ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2526.70ms IncrementalHoareTripleChecker+Time [2021-11-07 10:05:05,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12016 Valid, 5465 Invalid, 953 Unknown, 0 Unchecked, 18.44ms Time], IncrementalHoareTripleChecker [4 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 2526.70ms Time] [2021-11-07 10:05:05,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2021-11-07 10:05:05,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2436. [2021-11-07 10:05:05,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2436 states, 2372 states have (on average 1.315345699831366) internal successors, (3120), 2435 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:05,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2436 states to 2436 states and 3120 transitions. [2021-11-07 10:05:05,753 INFO L78 Accepts]: Start accepts. Automaton has 2436 states and 3120 transitions. Word has length 164 [2021-11-07 10:05:05,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:05:05,754 INFO L470 AbstractCegarLoop]: Abstraction has 2436 states and 3120 transitions. [2021-11-07 10:05:05,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:05,755 INFO L276 IsEmpty]: Start isEmpty. Operand 2436 states and 3120 transitions. [2021-11-07 10:05:05,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-07 10:05:05,756 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:05:05,756 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:05:05,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-07 10:05:05,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-07 10:05:05,980 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:05:05,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:05:05,980 INFO L85 PathProgramCache]: Analyzing trace with hash -977522511, now seen corresponding path program 1 times [2021-11-07 10:05:05,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:05:05,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395633099] [2021-11-07 10:05:05,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:05,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:05:06,057 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:05:06,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [456823934] [2021-11-07 10:05:06,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:06,058 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:06,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:05:06,066 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:05:06,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-07 10:05:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:05:06,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 3428 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 10:05:06,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:05:07,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:05:07,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:05:07,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:05:07,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395633099] [2021-11-07 10:05:07,649 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:05:07,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456823934] [2021-11-07 10:05:07,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456823934] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:05:07,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:05:07,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 10:05:07,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51278330] [2021-11-07 10:05:07,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:05:07,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 10:05:07,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:05:07,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 10:05:07,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-07 10:05:07,651 INFO L87 Difference]: Start difference. First operand 2436 states and 3120 transitions. Second operand has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:10,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:05:10,040 INFO L93 Difference]: Finished difference Result 5041 states and 6467 transitions. [2021-11-07 10:05:10,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 10:05:10,040 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 172 [2021-11-07 10:05:10,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:05:10,045 INFO L225 Difference]: With dead ends: 5041 [2021-11-07 10:05:10,045 INFO L226 Difference]: Without dead ends: 2848 [2021-11-07 10:05:10,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 157.07ms TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-11-07 10:05:10,048 INFO L933 BasicCegarLoop]: 2976 mSDtfsCounter, 15716 mSDsluCounter, 4538 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1887.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15716 SdHoareTripleChecker+Valid, 7514 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.22ms SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2123.41ms IncrementalHoareTripleChecker+Time [2021-11-07 10:05:10,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15716 Valid, 7514 Invalid, 974 Unknown, 0 Unchecked, 20.22ms Time], IncrementalHoareTripleChecker [91 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 2123.41ms Time] [2021-11-07 10:05:10,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states. [2021-11-07 10:05:10,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 2436. [2021-11-07 10:05:10,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2436 states, 2372 states have (on average 1.3115514333895446) internal successors, (3111), 2435 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:10,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2436 states to 2436 states and 3111 transitions. [2021-11-07 10:05:10,105 INFO L78 Accepts]: Start accepts. Automaton has 2436 states and 3111 transitions. Word has length 172 [2021-11-07 10:05:10,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:05:10,105 INFO L470 AbstractCegarLoop]: Abstraction has 2436 states and 3111 transitions. [2021-11-07 10:05:10,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:10,105 INFO L276 IsEmpty]: Start isEmpty. Operand 2436 states and 3111 transitions. [2021-11-07 10:05:10,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-07 10:05:10,106 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:05:10,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:05:10,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-07 10:05:10,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:10,336 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:05:10,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:05:10,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1683999865, now seen corresponding path program 1 times [2021-11-07 10:05:10,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:05:10,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48585634] [2021-11-07 10:05:10,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:10,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:05:10,399 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:05:10,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [276327997] [2021-11-07 10:05:10,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:10,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:10,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:05:10,401 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:05:10,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-07 10:05:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:05:11,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 3618 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 10:05:11,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:05:11,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:05:11,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:05:11,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:05:11,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48585634] [2021-11-07 10:05:11,940 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:05:11,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276327997] [2021-11-07 10:05:11,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276327997] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:05:11,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:05:11,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:05:11,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359675325] [2021-11-07 10:05:11,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:05:11,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:05:11,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:05:11,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:05:11,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:05:11,942 INFO L87 Difference]: Start difference. First operand 2436 states and 3111 transitions. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:13,985 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:05:16,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:05:18,153 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:05:30,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:05:30,595 INFO L93 Difference]: Finished difference Result 6863 states and 8749 transitions. [2021-11-07 10:05:30,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 10:05:30,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-07 10:05:30,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:05:30,604 INFO L225 Difference]: With dead ends: 6863 [2021-11-07 10:05:30,604 INFO L226 Difference]: Without dead ends: 4498 [2021-11-07 10:05:30,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 237.06ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-07 10:05:30,608 INFO L933 BasicCegarLoop]: 4927 mSDtfsCounter, 2527 mSDsluCounter, 15740 mSDsCounter, 0 mSdLazyCounter, 4550 mSolverCounterSat, 91 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16434.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2527 SdHoareTripleChecker+Valid, 20667 SdHoareTripleChecker+Invalid, 4644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.88ms SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 4550 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18113.75ms IncrementalHoareTripleChecker+Time [2021-11-07 10:05:30,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2527 Valid, 20667 Invalid, 4644 Unknown, 0 Unchecked, 48.88ms Time], IncrementalHoareTripleChecker [91 Valid, 4550 Invalid, 3 Unknown, 0 Unchecked, 18113.75ms Time] [2021-11-07 10:05:30,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4498 states. [2021-11-07 10:05:30,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4498 to 2460. [2021-11-07 10:05:30,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2460 states, 2396 states have (on average 1.3084307178631052) internal successors, (3135), 2459 states have internal predecessors, (3135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:30,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 3135 transitions. [2021-11-07 10:05:30,683 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 3135 transitions. Word has length 188 [2021-11-07 10:05:30,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:05:30,684 INFO L470 AbstractCegarLoop]: Abstraction has 2460 states and 3135 transitions. [2021-11-07 10:05:30,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:30,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 3135 transitions. [2021-11-07 10:05:30,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-07 10:05:30,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:05:30,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:05:30,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-07 10:05:30,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-07 10:05:30,904 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:05:30,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:05:30,904 INFO L85 PathProgramCache]: Analyzing trace with hash -222403401, now seen corresponding path program 1 times [2021-11-07 10:05:30,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:05:30,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315790305] [2021-11-07 10:05:30,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:30,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:05:30,974 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:05:30,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [777089156] [2021-11-07 10:05:30,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:30,975 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:30,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:05:30,997 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:05:30,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-07 10:05:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:05:31,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 3615 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 10:05:31,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:05:32,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:05:32,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:05:32,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:05:32,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315790305] [2021-11-07 10:05:32,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:05:32,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777089156] [2021-11-07 10:05:32,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777089156] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:05:32,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:05:32,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:05:32,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511465870] [2021-11-07 10:05:32,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:05:32,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:05:32,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:05:32,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:05:32,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:05:32,202 INFO L87 Difference]: Start difference. First operand 2460 states and 3135 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:32,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:05:32,691 INFO L93 Difference]: Finished difference Result 4893 states and 6237 transitions. [2021-11-07 10:05:32,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:05:32,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-07 10:05:32,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:05:32,696 INFO L225 Difference]: With dead ends: 4893 [2021-11-07 10:05:32,696 INFO L226 Difference]: Without dead ends: 2508 [2021-11-07 10:05:32,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.30ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:05:32,700 INFO L933 BasicCegarLoop]: 3063 mSDtfsCounter, 32 mSDsluCounter, 6042 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 355.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 9105 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.34ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 395.76ms IncrementalHoareTripleChecker+Time [2021-11-07 10:05:32,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 9105 Invalid, 209 Unknown, 0 Unchecked, 5.34ms Time], IncrementalHoareTripleChecker [45 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 395.76ms Time] [2021-11-07 10:05:32,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2021-11-07 10:05:32,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 2484. [2021-11-07 10:05:32,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2484 states, 2420 states have (on average 1.3053719008264464) internal successors, (3159), 2483 states have internal predecessors, (3159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:32,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2484 states to 2484 states and 3159 transitions. [2021-11-07 10:05:32,767 INFO L78 Accepts]: Start accepts. Automaton has 2484 states and 3159 transitions. Word has length 188 [2021-11-07 10:05:32,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:05:32,768 INFO L470 AbstractCegarLoop]: Abstraction has 2484 states and 3159 transitions. [2021-11-07 10:05:32,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:32,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2484 states and 3159 transitions. [2021-11-07 10:05:32,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-07 10:05:32,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:05:32,770 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:05:32,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-11-07 10:05:32,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-07 10:05:32,996 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:05:32,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:05:32,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1279134603, now seen corresponding path program 1 times [2021-11-07 10:05:32,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:05:32,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530399187] [2021-11-07 10:05:32,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:32,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:05:33,056 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:05:33,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [620000239] [2021-11-07 10:05:33,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:33,057 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:33,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:05:33,058 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:05:33,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-07 10:05:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:05:33,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 3610 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 10:05:33,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:05:34,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:05:34,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:05:34,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:05:34,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530399187] [2021-11-07 10:05:34,796 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:05:34,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620000239] [2021-11-07 10:05:34,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620000239] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:05:34,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:05:34,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:05:34,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956864009] [2021-11-07 10:05:34,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:05:34,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:05:34,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:05:34,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:05:34,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:05:34,797 INFO L87 Difference]: Start difference. First operand 2484 states and 3159 transitions. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:35,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:05:35,087 INFO L93 Difference]: Finished difference Result 7202 states and 9165 transitions. [2021-11-07 10:05:35,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 10:05:35,088 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-07 10:05:35,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:05:35,095 INFO L225 Difference]: With dead ends: 7202 [2021-11-07 10:05:35,096 INFO L226 Difference]: Without dead ends: 4874 [2021-11-07 10:05:35,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 170.42ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 10:05:35,099 INFO L933 BasicCegarLoop]: 3079 mSDtfsCounter, 5911 mSDsluCounter, 12318 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5911 SdHoareTripleChecker+Valid, 15397 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.82ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.27ms IncrementalHoareTripleChecker+Time [2021-11-07 10:05:35,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5911 Valid, 15397 Invalid, 42 Unknown, 0 Unchecked, 11.82ms Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 62.27ms Time] [2021-11-07 10:05:35,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2021-11-07 10:05:35,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 2543. [2021-11-07 10:05:35,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2543 states, 2479 states have (on average 1.3041549011698266) internal successors, (3233), 2542 states have internal predecessors, (3233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:35,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2543 states to 2543 states and 3233 transitions. [2021-11-07 10:05:35,184 INFO L78 Accepts]: Start accepts. Automaton has 2543 states and 3233 transitions. Word has length 188 [2021-11-07 10:05:35,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:05:35,184 INFO L470 AbstractCegarLoop]: Abstraction has 2543 states and 3233 transitions. [2021-11-07 10:05:35,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:35,184 INFO L276 IsEmpty]: Start isEmpty. Operand 2543 states and 3233 transitions. [2021-11-07 10:05:35,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-07 10:05:35,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:05:35,185 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:05:35,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-11-07 10:05:35,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-07 10:05:35,400 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:05:35,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:05:35,400 INFO L85 PathProgramCache]: Analyzing trace with hash 2021138995, now seen corresponding path program 1 times [2021-11-07 10:05:35,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:05:35,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242714004] [2021-11-07 10:05:35,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:35,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:05:35,462 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:05:35,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1339348879] [2021-11-07 10:05:35,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:35,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:35,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:05:35,463 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:05:35,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-07 10:05:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:05:36,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 3607 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 10:05:36,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:05:37,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:05:37,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:05:37,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:05:37,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242714004] [2021-11-07 10:05:37,049 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:05:37,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339348879] [2021-11-07 10:05:37,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339348879] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:05:37,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:05:37,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:05:37,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492221444] [2021-11-07 10:05:37,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:05:37,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:05:37,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:05:37,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:05:37,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:05:37,051 INFO L87 Difference]: Start difference. First operand 2543 states and 3233 transitions. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:37,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:05:37,377 INFO L93 Difference]: Finished difference Result 7143 states and 9089 transitions. [2021-11-07 10:05:37,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 10:05:37,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-07 10:05:37,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:05:37,386 INFO L225 Difference]: With dead ends: 7143 [2021-11-07 10:05:37,386 INFO L226 Difference]: Without dead ends: 4874 [2021-11-07 10:05:37,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 185.00ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 10:05:37,390 INFO L933 BasicCegarLoop]: 3079 mSDtfsCounter, 5773 mSDsluCounter, 12318 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5773 SdHoareTripleChecker+Valid, 15397 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.79ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.62ms IncrementalHoareTripleChecker+Time [2021-11-07 10:05:37,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5773 Valid, 15397 Invalid, 42 Unknown, 0 Unchecked, 11.79ms Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 71.62ms Time] [2021-11-07 10:05:37,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2021-11-07 10:05:37,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 2602. [2021-11-07 10:05:37,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2602 states, 2538 states have (on average 1.3029944838455476) internal successors, (3307), 2601 states have internal predecessors, (3307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:37,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2602 states to 2602 states and 3307 transitions. [2021-11-07 10:05:37,489 INFO L78 Accepts]: Start accepts. Automaton has 2602 states and 3307 transitions. Word has length 188 [2021-11-07 10:05:37,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:05:37,490 INFO L470 AbstractCegarLoop]: Abstraction has 2602 states and 3307 transitions. [2021-11-07 10:05:37,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:37,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2602 states and 3307 transitions. [2021-11-07 10:05:37,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-07 10:05:37,492 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:05:37,492 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:05:37,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-07 10:05:37,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-07 10:05:37,711 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:05:37,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:05:37,712 INFO L85 PathProgramCache]: Analyzing trace with hash -334666255, now seen corresponding path program 1 times [2021-11-07 10:05:37,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:05:37,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002889473] [2021-11-07 10:05:37,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:37,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:05:37,776 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:05:37,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1868704541] [2021-11-07 10:05:37,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:37,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:37,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:05:37,792 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:05:37,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-07 10:05:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:05:38,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 3604 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 10:05:38,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:05:39,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:05:39,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:05:39,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:05:39,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002889473] [2021-11-07 10:05:39,319 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:05:39,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868704541] [2021-11-07 10:05:39,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868704541] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:05:39,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:05:39,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:05:39,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342056574] [2021-11-07 10:05:39,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:05:39,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:05:39,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:05:39,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:05:39,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:05:39,320 INFO L87 Difference]: Start difference. First operand 2602 states and 3307 transitions. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:39,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:05:39,721 INFO L93 Difference]: Finished difference Result 7123 states and 9063 transitions. [2021-11-07 10:05:39,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 10:05:39,722 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-07 10:05:39,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:05:39,728 INFO L225 Difference]: With dead ends: 7123 [2021-11-07 10:05:39,728 INFO L226 Difference]: Without dead ends: 4874 [2021-11-07 10:05:39,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 227.43ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 10:05:39,733 INFO L933 BasicCegarLoop]: 3079 mSDtfsCounter, 5661 mSDsluCounter, 12318 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5661 SdHoareTripleChecker+Valid, 15397 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.95ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.72ms IncrementalHoareTripleChecker+Time [2021-11-07 10:05:39,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5661 Valid, 15397 Invalid, 40 Unknown, 0 Unchecked, 12.95ms Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 61.72ms Time] [2021-11-07 10:05:39,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2021-11-07 10:05:39,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 2622. [2021-11-07 10:05:39,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2622 states, 2558 states have (on average 1.302189210320563) internal successors, (3331), 2621 states have internal predecessors, (3331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:39,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2622 states to 2622 states and 3331 transitions. [2021-11-07 10:05:39,859 INFO L78 Accepts]: Start accepts. Automaton has 2622 states and 3331 transitions. Word has length 188 [2021-11-07 10:05:39,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:05:39,859 INFO L470 AbstractCegarLoop]: Abstraction has 2622 states and 3331 transitions. [2021-11-07 10:05:39,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:39,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2622 states and 3331 transitions. [2021-11-07 10:05:39,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-07 10:05:39,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:05:39,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:05:39,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-07 10:05:40,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:40,076 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:05:40,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:05:40,076 INFO L85 PathProgramCache]: Analyzing trace with hash -59906641, now seen corresponding path program 1 times [2021-11-07 10:05:40,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:05:40,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532377118] [2021-11-07 10:05:40,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:40,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:05:40,143 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:05:40,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1941058379] [2021-11-07 10:05:40,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:40,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:40,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:05:40,160 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:05:40,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-07 10:05:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:05:41,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 3601 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 10:05:41,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:05:41,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:05:41,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:05:41,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:05:41,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532377118] [2021-11-07 10:05:41,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:05:41,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941058379] [2021-11-07 10:05:41,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941058379] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:05:41,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:05:41,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:05:41,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388093402] [2021-11-07 10:05:41,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:05:41,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:05:41,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:05:41,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:05:41,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:05:41,468 INFO L87 Difference]: Start difference. First operand 2622 states and 3331 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:42,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:05:42,178 INFO L93 Difference]: Finished difference Result 4950 states and 6293 transitions. [2021-11-07 10:05:42,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 10:05:42,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-07 10:05:42,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:05:42,181 INFO L225 Difference]: With dead ends: 4950 [2021-11-07 10:05:42,182 INFO L226 Difference]: Without dead ends: 2563 [2021-11-07 10:05:42,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.75ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:05:42,187 INFO L933 BasicCegarLoop]: 3086 mSDtfsCounter, 1 mSDsluCounter, 5940 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 514.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 9026 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.88ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 574.51ms IncrementalHoareTripleChecker+Time [2021-11-07 10:05:42,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 9026 Invalid, 234 Unknown, 0 Unchecked, 5.88ms Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 574.51ms Time] [2021-11-07 10:05:42,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2021-11-07 10:05:42,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2563. [2021-11-07 10:05:42,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 2499 states have (on average 1.302921168467387) internal successors, (3256), 2562 states have internal predecessors, (3256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:42,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 3256 transitions. [2021-11-07 10:05:42,275 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 3256 transitions. Word has length 188 [2021-11-07 10:05:42,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:05:42,276 INFO L470 AbstractCegarLoop]: Abstraction has 2563 states and 3256 transitions. [2021-11-07 10:05:42,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:42,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 3256 transitions. [2021-11-07 10:05:42,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-07 10:05:42,277 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:05:42,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:05:42,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-07 10:05:42,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-07 10:05:42,494 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:05:42,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:05:42,494 INFO L85 PathProgramCache]: Analyzing trace with hash -694362953, now seen corresponding path program 1 times [2021-11-07 10:05:42,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:05:42,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955980577] [2021-11-07 10:05:42,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:42,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:05:42,577 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:05:42,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [522705195] [2021-11-07 10:05:42,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:42,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:42,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:05:42,578 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:05:42,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-07 10:05:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:05:43,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 3613 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-07 10:05:43,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:05:43,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:05:43,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:05:43,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:05:43,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955980577] [2021-11-07 10:05:43,876 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:05:43,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522705195] [2021-11-07 10:05:43,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522705195] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:05:43,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:05:43,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:05:43,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550368311] [2021-11-07 10:05:43,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:05:43,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:05:43,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:05:43,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:05:43,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:05:43,877 INFO L87 Difference]: Start difference. First operand 2563 states and 3256 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:44,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:05:44,186 INFO L93 Difference]: Finished difference Result 7033 states and 8946 transitions. [2021-11-07 10:05:44,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:05:44,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-07 10:05:44,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:05:44,193 INFO L225 Difference]: With dead ends: 7033 [2021-11-07 10:05:44,193 INFO L226 Difference]: Without dead ends: 4564 [2021-11-07 10:05:44,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 52.71ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:05:44,197 INFO L933 BasicCegarLoop]: 5462 mSDtfsCounter, 2492 mSDsluCounter, 13980 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2492 SdHoareTripleChecker+Valid, 19442 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.55ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118.47ms IncrementalHoareTripleChecker+Time [2021-11-07 10:05:44,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2492 Valid, 19442 Invalid, 58 Unknown, 0 Unchecked, 11.55ms Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 118.47ms Time] [2021-11-07 10:05:44,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4564 states. [2021-11-07 10:05:44,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4564 to 2563. [2021-11-07 10:05:44,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 2499 states have (on average 1.3025210084033614) internal successors, (3255), 2562 states have internal predecessors, (3255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:44,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 3255 transitions. [2021-11-07 10:05:44,370 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 3255 transitions. Word has length 188 [2021-11-07 10:05:44,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:05:44,371 INFO L470 AbstractCegarLoop]: Abstraction has 2563 states and 3255 transitions. [2021-11-07 10:05:44,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:44,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 3255 transitions. [2021-11-07 10:05:44,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-07 10:05:44,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:05:44,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:05:44,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-07 10:05:44,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:44,591 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:05:44,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:05:44,591 INFO L85 PathProgramCache]: Analyzing trace with hash -606250993, now seen corresponding path program 1 times [2021-11-07 10:05:44,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:05:44,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115561609] [2021-11-07 10:05:44,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:44,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:05:44,644 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:05:44,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442821238] [2021-11-07 10:05:44,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:44,645 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:44,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:05:44,668 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:05:44,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-07 10:05:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:05:45,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 3635 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-07 10:05:45,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:05:45,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:05:45,926 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:05:45,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:05:45,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115561609] [2021-11-07 10:05:45,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:05:45,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442821238] [2021-11-07 10:05:45,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442821238] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:05:45,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:05:45,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:05:45,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382662203] [2021-11-07 10:05:45,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:05:45,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:05:45,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:05:45,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:05:45,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:05:45,928 INFO L87 Difference]: Start difference. First operand 2563 states and 3255 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:46,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:05:46,887 INFO L93 Difference]: Finished difference Result 7218 states and 9145 transitions. [2021-11-07 10:05:46,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:05:46,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2021-11-07 10:05:46,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:05:46,893 INFO L225 Difference]: With dead ends: 7218 [2021-11-07 10:05:46,894 INFO L226 Difference]: Without dead ends: 4739 [2021-11-07 10:05:46,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.70ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:05:46,898 INFO L933 BasicCegarLoop]: 5685 mSDtfsCounter, 2786 mSDsluCounter, 14113 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 679.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2786 SdHoareTripleChecker+Valid, 19798 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.34ms SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 745.61ms IncrementalHoareTripleChecker+Time [2021-11-07 10:05:46,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2786 Valid, 19798 Invalid, 333 Unknown, 0 Unchecked, 11.34ms Time], IncrementalHoareTripleChecker [56 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 745.61ms Time] [2021-11-07 10:05:46,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4739 states. [2021-11-07 10:05:47,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4739 to 2615. [2021-11-07 10:05:47,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2615 states, 2551 states have (on average 1.2963543708349667) internal successors, (3307), 2614 states have internal predecessors, (3307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:47,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 3307 transitions. [2021-11-07 10:05:47,008 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 3307 transitions. Word has length 191 [2021-11-07 10:05:47,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:05:47,009 INFO L470 AbstractCegarLoop]: Abstraction has 2615 states and 3307 transitions. [2021-11-07 10:05:47,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:47,009 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 3307 transitions. [2021-11-07 10:05:47,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-07 10:05:47,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:05:47,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:05:47,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-07 10:05:47,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:47,226 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:05:47,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:05:47,227 INFO L85 PathProgramCache]: Analyzing trace with hash -620535023, now seen corresponding path program 1 times [2021-11-07 10:05:47,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:05:47,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222067763] [2021-11-07 10:05:47,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:47,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:05:47,284 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:05:47,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1091485544] [2021-11-07 10:05:47,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:47,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:47,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:05:47,286 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:05:47,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-07 10:05:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:05:48,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 3632 conjuncts, 75 conjunts are in the unsatisfiable core [2021-11-07 10:05:48,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:05:50,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:05:50,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:05:50,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:05:50,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222067763] [2021-11-07 10:05:50,241 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:05:50,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091485544] [2021-11-07 10:05:50,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091485544] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:05:50,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:05:50,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-07 10:05:50,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195611855] [2021-11-07 10:05:50,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:05:50,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 10:05:50,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:05:50,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 10:05:50,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-11-07 10:05:50,242 INFO L87 Difference]: Start difference. First operand 2615 states and 3307 transitions. Second operand has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:59,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:05:59,208 INFO L93 Difference]: Finished difference Result 10044 states and 12635 transitions. [2021-11-07 10:05:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-07 10:05:59,208 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2021-11-07 10:05:59,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:05:59,217 INFO L225 Difference]: With dead ends: 10044 [2021-11-07 10:05:59,217 INFO L226 Difference]: Without dead ends: 7517 [2021-11-07 10:05:59,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 2256.78ms TimeCoverageRelationStatistics Valid=421, Invalid=1559, Unknown=0, NotChecked=0, Total=1980 [2021-11-07 10:05:59,223 INFO L933 BasicCegarLoop]: 7297 mSDtfsCounter, 10910 mSDsluCounter, 38071 mSDsCounter, 0 mSdLazyCounter, 2850 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5830.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10910 SdHoareTripleChecker+Valid, 45368 SdHoareTripleChecker+Invalid, 3012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 65.37ms SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6424.26ms IncrementalHoareTripleChecker+Time [2021-11-07 10:05:59,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10910 Valid, 45368 Invalid, 3012 Unknown, 0 Unchecked, 65.37ms Time], IncrementalHoareTripleChecker [162 Valid, 2850 Invalid, 0 Unknown, 0 Unchecked, 6424.26ms Time] [2021-11-07 10:05:59,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7517 states. [2021-11-07 10:05:59,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7517 to 2642. [2021-11-07 10:05:59,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2642 states, 2578 states have (on average 1.2967416602017068) internal successors, (3343), 2641 states have internal predecessors, (3343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:59,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2642 states to 2642 states and 3343 transitions. [2021-11-07 10:05:59,346 INFO L78 Accepts]: Start accepts. Automaton has 2642 states and 3343 transitions. Word has length 191 [2021-11-07 10:05:59,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:05:59,347 INFO L470 AbstractCegarLoop]: Abstraction has 2642 states and 3343 transitions. [2021-11-07 10:05:59,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:05:59,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2642 states and 3343 transitions. [2021-11-07 10:05:59,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-07 10:05:59,348 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:05:59,348 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:05:59,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-11-07 10:05:59,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:59,560 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:05:59,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:05:59,560 INFO L85 PathProgramCache]: Analyzing trace with hash 921302737, now seen corresponding path program 1 times [2021-11-07 10:05:59,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:05:59,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481517320] [2021-11-07 10:05:59,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:59,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:05:59,619 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:05:59,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [597463005] [2021-11-07 10:05:59,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:05:59,619 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:05:59,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:05:59,624 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:05:59,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-07 10:06:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:06:00,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 3622 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 10:06:00,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:06:01,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:06:01,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:06:01,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:06:01,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481517320] [2021-11-07 10:06:01,080 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:06:01,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597463005] [2021-11-07 10:06:01,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597463005] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:06:01,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:06:01,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:06:01,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305963819] [2021-11-07 10:06:01,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:06:01,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:06:01,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:06:01,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:06:01,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:06:01,083 INFO L87 Difference]: Start difference. First operand 2642 states and 3343 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:06:05,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:06:05,297 INFO L93 Difference]: Finished difference Result 5726 states and 7313 transitions. [2021-11-07 10:06:05,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:06:05,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2021-11-07 10:06:05,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:06:05,303 INFO L225 Difference]: With dead ends: 5726 [2021-11-07 10:06:05,303 INFO L226 Difference]: Without dead ends: 3131 [2021-11-07 10:06:05,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.05ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:06:05,309 INFO L933 BasicCegarLoop]: 3389 mSDtfsCounter, 720 mSDsluCounter, 4826 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3471.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 8215 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.57ms SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3951.90ms IncrementalHoareTripleChecker+Time [2021-11-07 10:06:05,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 8215 Invalid, 1805 Unknown, 0 Unchecked, 17.57ms Time], IncrementalHoareTripleChecker [381 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 3951.90ms Time] [2021-11-07 10:06:05,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3131 states. [2021-11-07 10:06:05,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3131 to 2834. [2021-11-07 10:06:05,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2834 states, 2770 states have (on average 1.2750902527075811) internal successors, (3532), 2833 states have internal predecessors, (3532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:06:05,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 3532 transitions. [2021-11-07 10:06:05,440 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 3532 transitions. Word has length 191 [2021-11-07 10:06:05,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:06:05,440 INFO L470 AbstractCegarLoop]: Abstraction has 2834 states and 3532 transitions. [2021-11-07 10:06:05,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:06:05,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 3532 transitions. [2021-11-07 10:06:05,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-07 10:06:05,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:06:05,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:06:05,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-11-07 10:06:05,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:06:05,645 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-07 10:06:05,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:06:05,646 INFO L85 PathProgramCache]: Analyzing trace with hash 789255281, now seen corresponding path program 1 times [2021-11-07 10:06:05,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:06:05,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255642319] [2021-11-07 10:06:05,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:06:05,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:06:05,716 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:06:05,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [290981181] [2021-11-07 10:06:05,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:06:05,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:06:05,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:06:05,718 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:06:05,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-07 10:06:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:06:08,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 3642 conjuncts, 228 conjunts are in the unsatisfiable core [2021-11-07 10:06:08,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:06:09,082 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-07 10:06:09,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 23 [2021-11-07 10:06:10,959 INFO L354 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2021-11-07 10:06:10,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 44 [2021-11-07 10:06:11,001 INFO L354 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2021-11-07 10:06:11,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 40 [2021-11-07 10:06:11,669 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-07 10:06:11,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 38 [2021-11-07 10:06:11,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2021-11-07 10:06:11,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-07 10:06:11,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-07 10:06:12,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2021-11-07 10:06:12,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-07 10:06:13,343 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-07 10:06:13,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 47 [2021-11-07 10:06:13,406 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-07 10:06:13,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2021-11-07 10:06:15,021 INFO L354 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2021-11-07 10:06:15,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2021-11-07 10:06:15,078 INFO L354 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2021-11-07 10:06:15,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 34 [2021-11-07 10:06:16,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-07 10:06:16,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-07 10:06:16,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:06:16,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:06:16,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:06:16,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255642319] [2021-11-07 10:06:16,767 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:06:16,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290981181] [2021-11-07 10:06:16,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290981181] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:06:16,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:06:16,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2021-11-07 10:06:16,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553012976] [2021-11-07 10:06:16,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:06:16,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-07 10:06:16,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:06:16,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-07 10:06:16,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=2206, Unknown=0, NotChecked=0, Total=2352 [2021-11-07 10:06:16,770 INFO L87 Difference]: Start difference. First operand 2834 states and 3532 transitions. Second operand has 49 states, 49 states have (on average 3.979591836734694) internal successors, (195), 49 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:06:18,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:20,923 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:23,048 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:25,209 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:27,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:29,436 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:31,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:33,728 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:35,855 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:38,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:40,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:42,261 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:44,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:46,506 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:48,697 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:50,843 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:53,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:55,217 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:57,492 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:06:59,669 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:07:01,766 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:07:03,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:07:06,164 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:07:08,336 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:07:10,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:07:12,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:07:14,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:07:17,113 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:07:19,319 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:07:21,574 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15