./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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_hash_table_put_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 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 13:09:48,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 13:09:48,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 13:09:48,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 13:09:48,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 13:09:48,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 13:09:48,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 13:09:48,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 13:09:48,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 13:09:48,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 13:09:48,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 13:09:48,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 13:09:48,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 13:09:49,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 13:09:49,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 13:09:49,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 13:09:49,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 13:09:49,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 13:09:49,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 13:09:49,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 13:09:49,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 13:09:49,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 13:09:49,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 13:09:49,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 13:09:49,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 13:09:49,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 13:09:49,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 13:09:49,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 13:09:49,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 13:09:49,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 13:09:49,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 13:09:49,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 13:09:49,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 13:09:49,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 13:09:49,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 13:09:49,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 13:09:49,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 13:09:49,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 13:09:49,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 13:09:49,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 13:09:49,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 13:09:49,052 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 13:09:49,086 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 13:09:49,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 13:09:49,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 13:09:49,088 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 13:09:49,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 13:09:49,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 13:09:49,090 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 13:09:49,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 13:09:49,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 13:09:49,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 13:09:49,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 13:09:49,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 13:09:49,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 13:09:49,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 13:09:49,092 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 13:09:49,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 13:09:49,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 13:09:49,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 13:09:49,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 13:09:49,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:09:49,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 13:09:49,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 13:09:49,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 13:09:49,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 13:09:49,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 13:09:49,094 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 13:09:49,095 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 13:09:49,095 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 13:09:49,095 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 13:09:49,095 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 [2021-11-05 13:09:49,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 13:09:49,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 13:09:49,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 13:09:49,448 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 13:09:49,449 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 13:09:49,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2021-11-05 13:09:49,517 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac122fc0f/00acfaaea399475d9661c8f1b7d5586c/FLAG315854785 [2021-11-05 13:09:50,222 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 13:09:50,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2021-11-05 13:09:50,267 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac122fc0f/00acfaaea399475d9661c8f1b7d5586c/FLAG315854785 [2021-11-05 13:09:50,489 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac122fc0f/00acfaaea399475d9661c8f1b7d5586c [2021-11-05 13:09:50,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 13:09:50,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 13:09:50,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 13:09:50,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 13:09:50,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 13:09:50,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:09:50" (1/1) ... [2021-11-05 13:09:50,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@794835b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:09:50, skipping insertion in model container [2021-11-05 13:09:50,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:09:50" (1/1) ... [2021-11-05 13:09:50,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 13:09:50,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 13:09:50,958 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_hash_table_put_harness.i[4492,4505] [2021-11-05 13:09:50,973 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_hash_table_put_harness.i[4552,4565] [2021-11-05 13:09:51,005 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:09:51,013 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:09:52,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,101 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,101 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,103 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,130 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,131 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,133 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,134 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,136 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,143 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,526 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:09:52,527 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:09:52,528 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:09:52,529 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:09:52,530 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:09:52,530 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:09:52,531 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:09:52,532 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:09:52,532 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:09:52,533 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:09:52,677 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:09:52,933 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,944 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,968 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,969 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,976 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,976 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,992 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,993 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,995 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:52,995 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:09:53,052 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 13:09:53,064 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_hash_table_put_harness.i[4492,4505] [2021-11-05 13:09:53,065 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_hash_table_put_harness.i[4552,4565] [2021-11-05 13:09:53,066 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:09:53,067 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:09:53,091 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,092 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,092 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,092 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,093 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,097 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,098 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,099 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,099 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,101 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,101 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,138 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:09:53,139 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:09:53,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:09:53,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:09:53,141 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:09:53,142 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:09:53,142 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:09:53,142 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:09:53,143 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:09:53,143 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:09:53,158 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:09:53,253 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,254 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,260 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,261 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,263 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,263 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,270 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,271 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,271 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,272 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,272 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,272 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,273 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:09:53,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:09:53,603 INFO L208 MainTranslator]: Completed translation [2021-11-05 13:09:53,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:09:53 WrapperNode [2021-11-05 13:09:53,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 13:09:53,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 13:09:53,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 13:09:53,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 13:09:53,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:09:53" (1/1) ... [2021-11-05 13:09:53,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:09:53" (1/1) ... [2021-11-05 13:09:53,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 13:09:53,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 13:09:53,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 13:09:53,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 13:09:53,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:09:53" (1/1) ... [2021-11-05 13:09:53,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:09:53" (1/1) ... [2021-11-05 13:09:53,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:09:53" (1/1) ... [2021-11-05 13:09:53,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:09:53" (1/1) ... [2021-11-05 13:09:53,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:09:53" (1/1) ... [2021-11-05 13:09:53,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:09:53" (1/1) ... [2021-11-05 13:09:54,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:09:53" (1/1) ... [2021-11-05 13:09:54,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 13:09:54,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 13:09:54,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 13:09:54,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 13:09:54,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:09:53" (1/1) ... [2021-11-05 13:09:54,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:09:54,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:09:54,137 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) [2021-11-05 13:09:54,199 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 [2021-11-05 13:09:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-05 13:09:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 13:09:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 13:09:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 13:09:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 13:09:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 13:09:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-05 13:09:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 13:09:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-05 13:09:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 13:09:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 13:09:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 13:09:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-05 13:09:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-05 13:09:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 13:09:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 13:10:04,965 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##256: assume !true; [2021-11-05 13:10:04,965 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##282: assume !true; [2021-11-05 13:10:04,965 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##307: assume !true; [2021-11-05 13:10:04,966 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !true; [2021-11-05 13:10:04,966 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume !true; [2021-11-05 13:10:04,966 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##333: assume !true; [2021-11-05 13:10:04,966 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume !true; [2021-11-05 13:10:04,977 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 13:10:04,980 INFO L299 CfgBuilder]: Removed 380 assume(true) statements. [2021-11-05 13:10:04,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:10:04 BoogieIcfgContainer [2021-11-05 13:10:04,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 13:10:04,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 13:10:04,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 13:10:04,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 13:10:04,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 01:09:50" (1/3) ... [2021-11-05 13:10:04,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20cb72b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:10:04, skipping insertion in model container [2021-11-05 13:10:04,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:09:53" (2/3) ... [2021-11-05 13:10:04,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20cb72b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:10:04, skipping insertion in model container [2021-11-05 13:10:04,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:10:04" (3/3) ... [2021-11-05 13:10:04,994 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_put_harness.i [2021-11-05 13:10:04,999 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 13:10:04,999 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-11-05 13:10:05,060 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 13:10:05,072 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 [2021-11-05 13:10:05,073 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-11-05 13:10:05,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 409 states, 388 states have (on average 1.440721649484536) internal successors, (559), 408 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:05,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-05 13:10:05,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:10:05,121 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] [2021-11-05 13:10:05,122 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 13:10:05,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:10:05,128 INFO L85 PathProgramCache]: Analyzing trace with hash 424433486, now seen corresponding path program 1 times [2021-11-05 13:10:05,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:10:05,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136819649] [2021-11-05 13:10:05,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:05,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:10:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:10:05,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:10:05,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:10:05,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136819649] [2021-11-05 13:10:05,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136819649] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:10:05,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:10:05,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 13:10:05,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78892085] [2021-11-05 13:10:05,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:10:05,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 13:10:05,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:10:05,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 13:10:05,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:10:05,778 INFO L87 Difference]: Start difference. First operand has 409 states, 388 states have (on average 1.440721649484536) internal successors, (559), 408 states have internal predecessors, (559), 0 states have call successors, (0), 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 27.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:05,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:10:05,841 INFO L93 Difference]: Finished difference Result 812 states and 1111 transitions. [2021-11-05 13:10:05,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 13:10:05,843 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-05 13:10:05,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:10:05,862 INFO L225 Difference]: With dead ends: 812 [2021-11-05 13:10:05,862 INFO L226 Difference]: Without dead ends: 402 [2021-11-05 13:10:05,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.07ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:10:05,876 INFO L933 BasicCegarLoop]: 500 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, 500 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.87ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 13:10:05,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 5.87ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 13:10:05,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-11-05 13:10:05,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2021-11-05 13:10:05,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 382 states have (on average 1.2958115183246073) internal successors, (495), 401 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:05,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 495 transitions. [2021-11-05 13:10:05,950 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 495 transitions. Word has length 54 [2021-11-05 13:10:05,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:10:05,951 INFO L470 AbstractCegarLoop]: Abstraction has 402 states and 495 transitions. [2021-11-05 13:10:05,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:05,951 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 495 transitions. [2021-11-05 13:10:05,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-05 13:10:05,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:10:05,954 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] [2021-11-05 13:10:05,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 13:10:05,954 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 13:10:05,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:10:05,955 INFO L85 PathProgramCache]: Analyzing trace with hash 624058192, now seen corresponding path program 1 times [2021-11-05 13:10:05,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:10:05,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679357048] [2021-11-05 13:10:05,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:05,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:10:06,140 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:10:06,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [301007897] [2021-11-05 13:10:06,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:06,141 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:10:06,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:10:06,147 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) [2021-11-05 13:10:06,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 13:10:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:10:07,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 2620 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-05 13:10:07,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:10:07,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:10:07,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:10:07,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:10:07,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679357048] [2021-11-05 13:10:07,836 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:10:07,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301007897] [2021-11-05 13:10:07,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301007897] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:10:07,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:10:07,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 13:10:07,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349266130] [2021-11-05 13:10:07,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:10:07,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 13:10:07,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:10:07,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 13:10:07,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:10:07,839 INFO L87 Difference]: Start difference. First operand 402 states and 495 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:08,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:10:08,860 INFO L93 Difference]: Finished difference Result 1092 states and 1350 transitions. [2021-11-05 13:10:08,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 13:10:08,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-05 13:10:08,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:10:08,865 INFO L225 Difference]: With dead ends: 1092 [2021-11-05 13:10:08,865 INFO L226 Difference]: Without dead ends: 748 [2021-11-05 13:10:08,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 298.51ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-05 13:10:08,867 INFO L933 BasicCegarLoop]: 469 mSDtfsCounter, 2561 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 701.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2561 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.55ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 772.39ms IncrementalHoareTripleChecker+Time [2021-11-05 13:10:08,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2561 Valid, 1465 Invalid, 82 Unknown, 0 Unchecked, 13.55ms Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 772.39ms Time] [2021-11-05 13:10:08,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2021-11-05 13:10:08,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 404. [2021-11-05 13:10:08,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 384 states have (on average 1.2942708333333333) internal successors, (497), 403 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:08,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 497 transitions. [2021-11-05 13:10:08,888 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 497 transitions. Word has length 54 [2021-11-05 13:10:08,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:10:08,889 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 497 transitions. [2021-11-05 13:10:08,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:08,889 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 497 transitions. [2021-11-05 13:10:08,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-05 13:10:08,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:10:08,890 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] [2021-11-05 13:10:08,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-05 13:10:09,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:10:09,116 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 13:10:09,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:10:09,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1304116562, now seen corresponding path program 1 times [2021-11-05 13:10:09,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:10:09,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365381321] [2021-11-05 13:10:09,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:09,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:10:09,215 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:10:09,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [657407908] [2021-11-05 13:10:09,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:09,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:10:09,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:10:09,218 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) [2021-11-05 13:10:09,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-05 13:10:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:10:10,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 2613 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-05 13:10:10,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:10:10,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:10:10,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:10:10,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:10:10,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365381321] [2021-11-05 13:10:10,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:10:10,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657407908] [2021-11-05 13:10:10,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657407908] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:10:10,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:10:10,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 13:10:10,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653416038] [2021-11-05 13:10:10,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:10:10,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 13:10:10,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:10:10,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 13:10:10,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:10:10,524 INFO L87 Difference]: Start difference. First operand 404 states and 497 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:10,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:10:10,961 INFO L93 Difference]: Finished difference Result 1162 states and 1432 transitions. [2021-11-05 13:10:10,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:10:10,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-05 13:10:10,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:10:10,965 INFO L225 Difference]: With dead ends: 1162 [2021-11-05 13:10:10,965 INFO L226 Difference]: Without dead ends: 780 [2021-11-05 13:10:10,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 140.28ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 13:10:10,967 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 903 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 271.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.03ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 309.13ms IncrementalHoareTripleChecker+Time [2021-11-05 13:10:10,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [903 Valid, 2689 Invalid, 76 Unknown, 0 Unchecked, 6.03ms Time], IncrementalHoareTripleChecker [14 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 309.13ms Time] [2021-11-05 13:10:10,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2021-11-05 13:10:10,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 410. [2021-11-05 13:10:10,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 390 states have (on average 1.2897435897435898) internal successors, (503), 409 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:10,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 503 transitions. [2021-11-05 13:10:10,983 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 503 transitions. Word has length 54 [2021-11-05 13:10:10,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:10:10,983 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 503 transitions. [2021-11-05 13:10:10,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:10,984 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 503 transitions. [2021-11-05 13:10:10,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-05 13:10:10,985 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:10:10,985 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] [2021-11-05 13:10:11,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-05 13:10:11,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-05 13:10:11,200 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 13:10:11,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:10:11,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1707960046, now seen corresponding path program 1 times [2021-11-05 13:10:11,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:10:11,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937125900] [2021-11-05 13:10:11,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:11,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:10:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:10:11,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:10:11,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:10:11,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937125900] [2021-11-05 13:10:11,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937125900] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:10:11,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:10:11,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-05 13:10:11,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230271761] [2021-11-05 13:10:11,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:10:11,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 13:10:11,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:10:11,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 13:10:11,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-05 13:10:11,804 INFO L87 Difference]: Start difference. First operand 410 states and 503 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:13,863 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 [] [2021-11-05 13:10:15,963 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 [] [2021-11-05 13:10:18,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:10:18,068 INFO L93 Difference]: Finished difference Result 788 states and 969 transitions. [2021-11-05 13:10:18,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-05 13:10:18,071 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2021-11-05 13:10:18,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:10:18,072 INFO L225 Difference]: With dead ends: 788 [2021-11-05 13:10:18,072 INFO L226 Difference]: Without dead ends: 416 [2021-11-05 13:10:18,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 636.76ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-05 13:10:18,074 INFO L933 BasicCegarLoop]: 479 mSDtfsCounter, 1011 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5441.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 2249 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.91ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5766.32ms IncrementalHoareTripleChecker+Time [2021-11-05 13:10:18,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1011 Valid, 2249 Invalid, 219 Unknown, 0 Unchecked, 7.91ms Time], IncrementalHoareTripleChecker [4 Valid, 213 Invalid, 2 Unknown, 0 Unchecked, 5766.32ms Time] [2021-11-05 13:10:18,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2021-11-05 13:10:18,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 412. [2021-11-05 13:10:18,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 392 states have (on average 1.288265306122449) internal successors, (505), 411 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:18,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 505 transitions. [2021-11-05 13:10:18,101 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 505 transitions. Word has length 56 [2021-11-05 13:10:18,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:10:18,103 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 505 transitions. [2021-11-05 13:10:18,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:18,103 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 505 transitions. [2021-11-05 13:10:18,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-05 13:10:18,105 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:10:18,105 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] [2021-11-05 13:10:18,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 13:10:18,107 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 13:10:18,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:10:18,107 INFO L85 PathProgramCache]: Analyzing trace with hash -536023252, now seen corresponding path program 1 times [2021-11-05 13:10:18,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:10:18,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284127989] [2021-11-05 13:10:18,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:18,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:10:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:10:18,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:10:18,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:10:18,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284127989] [2021-11-05 13:10:18,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284127989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:10:18,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:10:18,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:10:18,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479330328] [2021-11-05 13:10:18,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:10:18,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:10:18,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:10:18,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:10:18,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:10:18,450 INFO L87 Difference]: Start difference. First operand 412 states and 505 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:18,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:10:18,640 INFO L93 Difference]: Finished difference Result 787 states and 967 transitions. [2021-11-05 13:10:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:10:18,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2021-11-05 13:10:18,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:10:18,643 INFO L225 Difference]: With dead ends: 787 [2021-11-05 13:10:18,643 INFO L226 Difference]: Without dead ends: 410 [2021-11-05 13:10:18,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.55ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:10:18,645 INFO L933 BasicCegarLoop]: 478 mSDtfsCounter, 469 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 131.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.53ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 146.51ms IncrementalHoareTripleChecker+Time [2021-11-05 13:10:18,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 951 Invalid, 35 Unknown, 0 Unchecked, 1.53ms Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 146.51ms Time] [2021-11-05 13:10:18,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-11-05 13:10:18,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2021-11-05 13:10:18,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 390 states have (on average 1.2820512820512822) internal successors, (500), 409 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:18,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 500 transitions. [2021-11-05 13:10:18,662 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 500 transitions. Word has length 56 [2021-11-05 13:10:18,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:10:18,662 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 500 transitions. [2021-11-05 13:10:18,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:18,663 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 500 transitions. [2021-11-05 13:10:18,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-05 13:10:18,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:10:18,664 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] [2021-11-05 13:10:18,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 13:10:18,664 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 13:10:18,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:10:18,665 INFO L85 PathProgramCache]: Analyzing trace with hash 2134836531, now seen corresponding path program 1 times [2021-11-05 13:10:18,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:10:18,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536577746] [2021-11-05 13:10:18,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:18,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:10:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:10:19,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:10:19,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:10:19,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536577746] [2021-11-05 13:10:19,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536577746] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:10:19,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:10:19,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 13:10:19,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715585343] [2021-11-05 13:10:19,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:10:19,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 13:10:19,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:10:19,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 13:10:19,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:10:19,010 INFO L87 Difference]: Start difference. First operand 410 states and 500 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:21,053 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 [] [2021-11-05 13:10:23,200 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 [] [2021-11-05 13:10:26,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:10:26,375 INFO L93 Difference]: Finished difference Result 1105 states and 1349 transitions. [2021-11-05 13:10:26,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 13:10:26,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2021-11-05 13:10:26,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:10:26,383 INFO L225 Difference]: With dead ends: 1105 [2021-11-05 13:10:26,383 INFO L226 Difference]: Without dead ends: 732 [2021-11-05 13:10:26,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 345.58ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 13:10:26,386 INFO L933 BasicCegarLoop]: 852 mSDtfsCounter, 438 mSDsluCounter, 1853 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6555.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.32ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7034.75ms IncrementalHoareTripleChecker+Time [2021-11-05 13:10:26,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 2705 Invalid, 356 Unknown, 0 Unchecked, 7.32ms Time], IncrementalHoareTripleChecker [16 Valid, 338 Invalid, 2 Unknown, 0 Unchecked, 7034.75ms Time] [2021-11-05 13:10:26,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2021-11-05 13:10:26,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 410. [2021-11-05 13:10:26,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 390 states have (on average 1.2769230769230768) internal successors, (498), 409 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:26,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 498 transitions. [2021-11-05 13:10:26,419 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 498 transitions. Word has length 58 [2021-11-05 13:10:26,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:10:26,420 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 498 transitions. [2021-11-05 13:10:26,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:26,420 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 498 transitions. [2021-11-05 13:10:26,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-05 13:10:26,424 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:10:26,424 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] [2021-11-05 13:10:26,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 13:10:26,425 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 13:10:26,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:10:26,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1720093986, now seen corresponding path program 1 times [2021-11-05 13:10:26,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:10:26,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214305115] [2021-11-05 13:10:26,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:26,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:10:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:10:27,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:10:27,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:10:27,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214305115] [2021-11-05 13:10:27,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214305115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:10:27,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:10:27,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:10:27,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224572611] [2021-11-05 13:10:27,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:10:27,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:10:27,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:10:27,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:10:27,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:10:27,008 INFO L87 Difference]: Start difference. First operand 410 states and 498 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:27,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:10:27,791 INFO L93 Difference]: Finished difference Result 951 states and 1165 transitions. [2021-11-05 13:10:27,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:10:27,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2021-11-05 13:10:27,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:10:27,794 INFO L225 Difference]: With dead ends: 951 [2021-11-05 13:10:27,794 INFO L226 Difference]: Without dead ends: 599 [2021-11-05 13:10:27,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 60.66ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:10:27,796 INFO L933 BasicCegarLoop]: 669 mSDtfsCounter, 234 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 641.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.03ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 707.21ms IncrementalHoareTripleChecker+Time [2021-11-05 13:10:27,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 1721 Invalid, 140 Unknown, 0 Unchecked, 3.03ms Time], IncrementalHoareTripleChecker [18 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 707.21ms Time] [2021-11-05 13:10:27,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-11-05 13:10:27,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 410. [2021-11-05 13:10:27,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 390 states have (on average 1.264102564102564) internal successors, (493), 409 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:27,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 493 transitions. [2021-11-05 13:10:27,820 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 493 transitions. Word has length 59 [2021-11-05 13:10:27,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:10:27,821 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 493 transitions. [2021-11-05 13:10:27,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:27,821 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 493 transitions. [2021-11-05 13:10:27,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-05 13:10:27,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:10:27,822 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] [2021-11-05 13:10:27,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 13:10:27,823 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 13:10:27,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:10:27,823 INFO L85 PathProgramCache]: Analyzing trace with hash -946222232, now seen corresponding path program 1 times [2021-11-05 13:10:27,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:10:27,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864287482] [2021-11-05 13:10:27,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:27,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:10:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:10:28,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:10:28,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:10:28,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864287482] [2021-11-05 13:10:28,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864287482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:10:28,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:10:28,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 13:10:28,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626631712] [2021-11-05 13:10:28,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:10:28,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 13:10:28,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:10:28,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 13:10:28,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 13:10:28,582 INFO L87 Difference]: Start difference. First operand 410 states and 493 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:28,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:10:28,882 INFO L93 Difference]: Finished difference Result 410 states and 493 transitions. [2021-11-05 13:10:28,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 13:10:28,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2021-11-05 13:10:28,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:10:28,885 INFO L225 Difference]: With dead ends: 410 [2021-11-05 13:10:28,885 INFO L226 Difference]: Without dead ends: 408 [2021-11-05 13:10:28,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.83ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 13:10:28,886 INFO L933 BasicCegarLoop]: 482 mSDtfsCounter, 7 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 252.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.43ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 275.74ms IncrementalHoareTripleChecker+Time [2021-11-05 13:10:28,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 901 Invalid, 57 Unknown, 0 Unchecked, 1.43ms Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 275.74ms Time] [2021-11-05 13:10:28,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2021-11-05 13:10:28,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 408. [2021-11-05 13:10:28,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 389 states have (on average 1.262210796915167) internal successors, (491), 407 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:28,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 491 transitions. [2021-11-05 13:10:28,907 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 491 transitions. Word has length 60 [2021-11-05 13:10:28,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:10:28,907 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 491 transitions. [2021-11-05 13:10:28,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:28,908 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 491 transitions. [2021-11-05 13:10:28,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-05 13:10:28,908 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:10:28,909 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] [2021-11-05 13:10:28,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 13:10:28,909 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 13:10:28,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:10:28,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1156892718, now seen corresponding path program 1 times [2021-11-05 13:10:28,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:10:28,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116728645] [2021-11-05 13:10:28,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:28,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:10:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:10:29,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:10:29,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:10:29,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116728645] [2021-11-05 13:10:29,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116728645] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:10:29,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:10:29,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:10:29,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981355208] [2021-11-05 13:10:29,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:10:29,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:10:29,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:10:29,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:10:29,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:10:29,496 INFO L87 Difference]: Start difference. First operand 408 states and 491 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:30,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:10:30,157 INFO L93 Difference]: Finished difference Result 930 states and 1149 transitions. [2021-11-05 13:10:30,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:10:30,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2021-11-05 13:10:30,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:10:30,161 INFO L225 Difference]: With dead ends: 930 [2021-11-05 13:10:30,161 INFO L226 Difference]: Without dead ends: 928 [2021-11-05 13:10:30,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 101.14ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:10:30,164 INFO L933 BasicCegarLoop]: 876 mSDtfsCounter, 917 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 504.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.14ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 551.65ms IncrementalHoareTripleChecker+Time [2021-11-05 13:10:30,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [917 Valid, 2095 Invalid, 121 Unknown, 0 Unchecked, 4.14ms Time], IncrementalHoareTripleChecker [2 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 551.65ms Time] [2021-11-05 13:10:30,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2021-11-05 13:10:30,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 410. [2021-11-05 13:10:30,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 391 states have (on average 1.2608695652173914) internal successors, (493), 409 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:30,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 493 transitions. [2021-11-05 13:10:30,194 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 493 transitions. Word has length 67 [2021-11-05 13:10:30,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:10:30,196 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 493 transitions. [2021-11-05 13:10:30,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:30,196 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 493 transitions. [2021-11-05 13:10:30,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-05 13:10:30,200 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:10:30,201 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] [2021-11-05 13:10:30,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 13:10:30,201 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 13:10:30,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:10:30,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1156952300, now seen corresponding path program 1 times [2021-11-05 13:10:30,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:10:30,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577881868] [2021-11-05 13:10:30,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:30,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:10:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:10:31,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:10:31,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:10:31,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577881868] [2021-11-05 13:10:31,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577881868] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:10:31,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:10:31,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:10:31,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107633588] [2021-11-05 13:10:31,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:10:31,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:10:31,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:10:31,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:10:31,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:10:31,420 INFO L87 Difference]: Start difference. First operand 410 states and 493 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:32,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:10:32,117 INFO L93 Difference]: Finished difference Result 927 states and 1146 transitions. [2021-11-05 13:10:32,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:10:32,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2021-11-05 13:10:32,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:10:32,122 INFO L225 Difference]: With dead ends: 927 [2021-11-05 13:10:32,122 INFO L226 Difference]: Without dead ends: 925 [2021-11-05 13:10:32,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 99.60ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:10:32,123 INFO L933 BasicCegarLoop]: 874 mSDtfsCounter, 917 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 503.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.25ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 555.46ms IncrementalHoareTripleChecker+Time [2021-11-05 13:10:32,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [917 Valid, 2088 Invalid, 116 Unknown, 0 Unchecked, 4.25ms Time], IncrementalHoareTripleChecker [3 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 555.46ms Time] [2021-11-05 13:10:32,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2021-11-05 13:10:32,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 406. [2021-11-05 13:10:32,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 388 states have (on average 1.2603092783505154) internal successors, (489), 405 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:32,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 489 transitions. [2021-11-05 13:10:32,151 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 489 transitions. Word has length 67 [2021-11-05 13:10:32,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:10:32,151 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 489 transitions. [2021-11-05 13:10:32,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:32,152 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 489 transitions. [2021-11-05 13:10:32,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-05 13:10:32,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:10:32,152 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] [2021-11-05 13:10:32,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 13:10:32,153 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 13:10:32,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:10:32,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1860933911, now seen corresponding path program 1 times [2021-11-05 13:10:32,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:10:32,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677368306] [2021-11-05 13:10:32,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:32,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:10:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:10:32,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:10:32,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:10:32,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677368306] [2021-11-05 13:10:32,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677368306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:10:32,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:10:32,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 13:10:32,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30140873] [2021-11-05 13:10:32,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:10:32,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 13:10:32,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:10:32,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 13:10:32,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 13:10:32,767 INFO L87 Difference]: Start difference. First operand 406 states and 489 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:33,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:10:33,630 INFO L93 Difference]: Finished difference Result 1232 states and 1512 transitions. [2021-11-05 13:10:33,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 13:10:33,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2021-11-05 13:10:33,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:10:33,639 INFO L225 Difference]: With dead ends: 1232 [2021-11-05 13:10:33,639 INFO L226 Difference]: Without dead ends: 919 [2021-11-05 13:10:33,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 529.44ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-05 13:10:33,641 INFO L933 BasicCegarLoop]: 746 mSDtfsCounter, 2054 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 448.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2054 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.08ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 480.51ms IncrementalHoareTripleChecker+Time [2021-11-05 13:10:33,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2054 Valid, 2704 Invalid, 50 Unknown, 0 Unchecked, 6.08ms Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 480.51ms Time] [2021-11-05 13:10:33,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2021-11-05 13:10:33,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 418. [2021-11-05 13:10:33,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 400 states have (on average 1.2625) internal successors, (505), 417 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:33,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 505 transitions. [2021-11-05 13:10:33,674 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 505 transitions. Word has length 73 [2021-11-05 13:10:33,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:10:33,675 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 505 transitions. [2021-11-05 13:10:33,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:33,675 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 505 transitions. [2021-11-05 13:10:33,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-05 13:10:33,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:10:33,676 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] [2021-11-05 13:10:33,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 13:10:33,677 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 13:10:33,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:10:33,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1499123456, now seen corresponding path program 1 times [2021-11-05 13:10:33,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:10:33,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296090515] [2021-11-05 13:10:33,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:33,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:10:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:10:34,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:10:34,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:10:34,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296090515] [2021-11-05 13:10:34,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296090515] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:10:34,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:10:34,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:10:34,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49699114] [2021-11-05 13:10:34,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:10:34,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:10:34,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:10:34,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:10:34,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:10:34,060 INFO L87 Difference]: Start difference. First operand 418 states and 505 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:34,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:10:34,195 INFO L93 Difference]: Finished difference Result 734 states and 897 transitions. [2021-11-05 13:10:34,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:10:34,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2021-11-05 13:10:34,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:10:34,198 INFO L225 Difference]: With dead ends: 734 [2021-11-05 13:10:34,198 INFO L226 Difference]: Without dead ends: 693 [2021-11-05 13:10:34,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 66.03ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:10:34,200 INFO L933 BasicCegarLoop]: 526 mSDtfsCounter, 583 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.54ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.87ms IncrementalHoareTripleChecker+Time [2021-11-05 13:10:34,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [583 Valid, 1565 Invalid, 13 Unknown, 0 Unchecked, 1.54ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 59.87ms Time] [2021-11-05 13:10:34,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2021-11-05 13:10:34,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 420. [2021-11-05 13:10:34,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 402 states have (on average 1.2611940298507462) internal successors, (507), 419 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:34,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 507 transitions. [2021-11-05 13:10:34,230 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 507 transitions. Word has length 74 [2021-11-05 13:10:34,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:10:34,231 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 507 transitions. [2021-11-05 13:10:34,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:34,231 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 507 transitions. [2021-11-05 13:10:34,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-05 13:10:34,232 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:10:34,232 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] [2021-11-05 13:10:34,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 13:10:34,233 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 13:10:34,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:10:34,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1783074560, now seen corresponding path program 1 times [2021-11-05 13:10:34,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:10:34,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591293095] [2021-11-05 13:10:34,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:34,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:10:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:10:34,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:10:34,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:10:34,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591293095] [2021-11-05 13:10:34,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591293095] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:10:34,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:10:34,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-05 13:10:34,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802732273] [2021-11-05 13:10:34,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:10:34,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 13:10:34,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:10:34,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 13:10:34,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-05 13:10:34,935 INFO L87 Difference]: Start difference. First operand 420 states and 507 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:37,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:10:37,897 INFO L93 Difference]: Finished difference Result 1319 states and 1631 transitions. [2021-11-05 13:10:37,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-05 13:10:37,898 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2021-11-05 13:10:37,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:10:37,902 INFO L225 Difference]: With dead ends: 1319 [2021-11-05 13:10:37,902 INFO L226 Difference]: Without dead ends: 1045 [2021-11-05 13:10:37,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1718.96ms TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-05 13:10:37,904 INFO L933 BasicCegarLoop]: 783 mSDtfsCounter, 2898 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1315.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2898 SdHoareTripleChecker+Valid, 2768 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.13ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1429.49ms IncrementalHoareTripleChecker+Time [2021-11-05 13:10:37,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2898 Valid, 2768 Invalid, 266 Unknown, 0 Unchecked, 8.13ms Time], IncrementalHoareTripleChecker [31 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 1429.49ms Time] [2021-11-05 13:10:37,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2021-11-05 13:10:37,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 420. [2021-11-05 13:10:37,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 402 states have (on average 1.2587064676616915) internal successors, (506), 419 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:37,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 506 transitions. [2021-11-05 13:10:37,947 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 506 transitions. Word has length 75 [2021-11-05 13:10:37,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:10:37,948 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 506 transitions. [2021-11-05 13:10:37,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:37,948 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 506 transitions. [2021-11-05 13:10:37,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-05 13:10:37,949 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:10:37,949 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] [2021-11-05 13:10:37,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 13:10:37,950 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 13:10:37,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:10:37,951 INFO L85 PathProgramCache]: Analyzing trace with hash 561048425, now seen corresponding path program 1 times [2021-11-05 13:10:37,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:10:37,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698927370] [2021-11-05 13:10:37,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:37,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:10:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:10:40,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:10:40,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:10:40,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698927370] [2021-11-05 13:10:40,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698927370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:10:40,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:10:40,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:10:40,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747742397] [2021-11-05 13:10:40,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:10:40,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:10:40,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:10:40,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:10:40,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:10:40,266 INFO L87 Difference]: Start difference. First operand 420 states and 506 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 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) [2021-11-05 13:10:40,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:10:40,662 INFO L93 Difference]: Finished difference Result 971 states and 1174 transitions. [2021-11-05 13:10:40,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:10:40,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 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 [2021-11-05 13:10:40,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:10:40,665 INFO L225 Difference]: With dead ends: 971 [2021-11-05 13:10:40,665 INFO L226 Difference]: Without dead ends: 576 [2021-11-05 13:10:40,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 96.90ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:10:40,667 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 192 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 268.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.04ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 292.75ms IncrementalHoareTripleChecker+Time [2021-11-05 13:10:40,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 1559 Invalid, 64 Unknown, 0 Unchecked, 2.04ms Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 292.75ms Time] [2021-11-05 13:10:40,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2021-11-05 13:10:40,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 417. [2021-11-05 13:10:40,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 399 states have (on average 1.255639097744361) internal successors, (501), 416 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:10:40,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 501 transitions. [2021-11-05 13:10:40,706 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 501 transitions. Word has length 76 [2021-11-05 13:10:40,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:10:40,706 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 501 transitions. [2021-11-05 13:10:40,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 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) [2021-11-05 13:10:40,706 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 501 transitions. [2021-11-05 13:10:40,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-05 13:10:40,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:10:40,707 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] [2021-11-05 13:10:40,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-05 13:10:40,708 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 13:10:40,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:10:40,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1479203388, now seen corresponding path program 1 times [2021-11-05 13:10:40,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:10:40,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882962413] [2021-11-05 13:10:40,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:40,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:10:40,816 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:10:40,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [254881177] [2021-11-05 13:10:40,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:10:40,817 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:10:40,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:10:40,818 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) [2021-11-05 13:10:40,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process Killed by 15