./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_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 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-22 20:40:15,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 20:40:15,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 20:40:15,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 20:40:15,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 20:40:15,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 20:40:15,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 20:40:15,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 20:40:15,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 20:40:15,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 20:40:15,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 20:40:15,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 20:40:15,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 20:40:15,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 20:40:15,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 20:40:15,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 20:40:15,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 20:40:15,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 20:40:15,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 20:40:15,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 20:40:15,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 20:40:15,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 20:40:15,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 20:40:15,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 20:40:15,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 20:40:15,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 20:40:15,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 20:40:15,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 20:40:15,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 20:40:15,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 20:40:15,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 20:40:15,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 20:40:15,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 20:40:15,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 20:40:15,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 20:40:15,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 20:40:15,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 20:40:15,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 20:40:15,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 20:40:15,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 20:40:15,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 20:40:15,167 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 20:40:15,191 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 20:40:15,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 20:40:15,192 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 20:40:15,192 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 20:40:15,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 20:40:15,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 20:40:15,194 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 20:40:15,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 20:40:15,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 20:40:15,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 20:40:15,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 20:40:15,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 20:40:15,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 20:40:15,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 20:40:15,195 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 20:40:15,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 20:40:15,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 20:40:15,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 20:40:15,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 20:40:15,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 20:40:15,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 20:40:15,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 20:40:15,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 20:40:15,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 20:40:15,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 20:40:15,197 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 20:40:15,197 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 20:40:15,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 20:40:15,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 20:40:15,198 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 [2021-11-22 20:40:15,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 20:40:15,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 20:40:15,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 20:40:15,384 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 20:40:15,385 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 20:40:15,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2021-11-22 20:40:15,430 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b937ca4c/c9dc6412d4e240369aa4218ddb63ea6d/FLAG0e568ff8e [2021-11-22 20:40:15,938 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 20:40:15,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2021-11-22 20:40:15,965 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b937ca4c/c9dc6412d4e240369aa4218ddb63ea6d/FLAG0e568ff8e [2021-11-22 20:40:16,166 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b937ca4c/c9dc6412d4e240369aa4218ddb63ea6d [2021-11-22 20:40:16,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 20:40:16,169 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 20:40:16,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 20:40:16,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 20:40:16,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 20:40:16,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:40:16" (1/1) ... [2021-11-22 20:40:16,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53feac95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:40:16, skipping insertion in model container [2021-11-22 20:40:16,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:40:16" (1/1) ... [2021-11-22 20:40:16,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 20:40:16,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 20:40:16,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2021-11-22 20:40:16,436 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2021-11-22 20:40:16,883 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:16,883 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:16,884 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:16,884 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:16,885 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:16,895 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:16,895 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:16,896 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:16,897 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:16,898 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:16,898 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:16,899 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:16,899 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,094 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-22 20:40:17,095 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-22 20:40:17,097 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-22 20:40:17,099 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-22 20:40:17,100 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-22 20:40:17,100 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-22 20:40:17,100 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-22 20:40:17,101 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-22 20:40:17,101 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-22 20:40:17,101 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-22 20:40:17,230 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-22 20:40:17,245 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,246 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,270 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,277 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,341 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,342 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,343 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,343 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,343 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,343 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,346 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,346 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,347 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,347 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,347 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,347 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,347 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,354 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,355 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,355 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,355 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,360 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,361 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,381 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,381 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,382 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 20:40:17,421 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 20:40:17,443 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2021-11-22 20:40:17,444 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2021-11-22 20:40:17,469 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,469 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,470 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,470 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,470 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,473 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,473 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,474 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,474 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,475 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,475 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,475 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,476 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,491 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-22 20:40:17,492 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-22 20:40:17,492 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-22 20:40:17,493 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-22 20:40:17,493 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-22 20:40:17,494 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-22 20:40:17,494 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-22 20:40:17,494 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-22 20:40:17,495 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-22 20:40:17,495 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-22 20:40:17,517 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-22 20:40:17,550 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,550 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,551 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,555 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,579 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,579 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,579 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,580 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,580 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,581 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,581 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,581 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,581 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,582 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,582 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,582 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,583 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,584 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,584 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,584 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,585 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,588 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,588 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,591 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,592 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,592 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:40:17,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 20:40:17,753 INFO L208 MainTranslator]: Completed translation [2021-11-22 20:40:17,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:40:17 WrapperNode [2021-11-22 20:40:17,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 20:40:17,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 20:40:17,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 20:40:17,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 20:40:17,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:40:17" (1/1) ... [2021-11-22 20:40:17,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:40:17" (1/1) ... [2021-11-22 20:40:17,972 INFO L137 Inliner]: procedures = 697, calls = 1905, calls flagged for inlining = 797, calls inlined = 454, statements flattened = 6206 [2021-11-22 20:40:17,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 20:40:17,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 20:40:17,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 20:40:17,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 20:40:17,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:40:17" (1/1) ... [2021-11-22 20:40:17,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:40:17" (1/1) ... [2021-11-22 20:40:18,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:40:17" (1/1) ... [2021-11-22 20:40:18,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:40:17" (1/1) ... [2021-11-22 20:40:18,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:40:17" (1/1) ... [2021-11-22 20:40:18,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:40:17" (1/1) ... [2021-11-22 20:40:18,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:40:17" (1/1) ... [2021-11-22 20:40:18,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 20:40:18,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 20:40:18,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 20:40:18,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 20:40:18,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:40:17" (1/1) ... [2021-11-22 20:40:18,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 20:40:18,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:40:18,195 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) [2021-11-22 20:40:18,198 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 [2021-11-22 20:40:18,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 20:40:18,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 20:40:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 20:40:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 20:40:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 20:40:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 20:40:18,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 20:40:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 20:40:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 20:40:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 20:40:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 20:40:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 20:40:18,507 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 20:40:18,508 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 20:40:20,610 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 20:40:20,621 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 20:40:20,621 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-22 20:40:20,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:40:20 BoogieIcfgContainer [2021-11-22 20:40:20,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 20:40:20,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 20:40:20,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 20:40:20,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 20:40:20,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 08:40:16" (1/3) ... [2021-11-22 20:40:20,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33def129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:40:20, skipping insertion in model container [2021-11-22 20:40:20,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:40:17" (2/3) ... [2021-11-22 20:40:20,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33def129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:40:20, skipping insertion in model container [2021-11-22 20:40:20,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:40:20" (3/3) ... [2021-11-22 20:40:20,629 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_down_harness.i [2021-11-22 20:40:20,632 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 20:40:20,633 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-11-22 20:40:20,671 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 20:40:20,675 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 [2021-11-22 20:40:20,675 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-11-22 20:40:20,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 1145 states, 1114 states have (on average 1.4192100538599641) internal successors, (1581), 1144 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:20,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-22 20:40:20,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:40:20,717 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] [2021-11-22 20:40:20,718 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:40:20,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:40:20,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1715157979, now seen corresponding path program 1 times [2021-11-22 20:40:20,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:40:20,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397352006] [2021-11-22 20:40:20,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:20,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:40:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:40:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:40:21,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:40:21,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397352006] [2021-11-22 20:40:21,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397352006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:40:21,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:40:21,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 20:40:21,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384032324] [2021-11-22 20:40:21,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:40:21,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 20:40:21,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:40:21,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 20:40:21,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 20:40:21,126 INFO L87 Difference]: Start difference. First operand has 1145 states, 1114 states have (on average 1.4192100538599641) internal successors, (1581), 1144 states have internal predecessors, (1581), 0 states have call successors, (0), 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 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:21,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:40:21,193 INFO L93 Difference]: Finished difference Result 2278 states and 3149 transitions. [2021-11-22 20:40:21,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 20:40:21,194 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2021-11-22 20:40:21,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:40:21,209 INFO L225 Difference]: With dead ends: 2278 [2021-11-22 20:40:21,213 INFO L226 Difference]: Without dead ends: 1140 [2021-11-22 20:40:21,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 20:40:21,225 INFO L933 BasicCegarLoop]: 1469 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:40:21,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:40:21,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2021-11-22 20:40:21,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1140. [2021-11-22 20:40:21,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1110 states have (on average 1.318918918918919) internal successors, (1464), 1139 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:21,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1464 transitions. [2021-11-22 20:40:21,305 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1464 transitions. Word has length 53 [2021-11-22 20:40:21,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:40:21,306 INFO L470 AbstractCegarLoop]: Abstraction has 1140 states and 1464 transitions. [2021-11-22 20:40:21,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:21,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1464 transitions. [2021-11-22 20:40:21,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-22 20:40:21,310 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:40:21,310 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] [2021-11-22 20:40:21,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 20:40:21,311 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:40:21,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:40:21,313 INFO L85 PathProgramCache]: Analyzing trace with hash -799846195, now seen corresponding path program 1 times [2021-11-22 20:40:21,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:40:21,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783573526] [2021-11-22 20:40:21,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:21,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:40:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:40:21,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:40:21,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:40:21,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783573526] [2021-11-22 20:40:21,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783573526] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:40:21,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:40:21,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 20:40:21,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362245683] [2021-11-22 20:40:21,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:40:21,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 20:40:21,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:40:21,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 20:40:21,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 20:40:21,465 INFO L87 Difference]: Start difference. First operand 1140 states and 1464 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:21,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:40:21,520 INFO L93 Difference]: Finished difference Result 2260 states and 2907 transitions. [2021-11-22 20:40:21,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 20:40:21,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2021-11-22 20:40:21,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:40:21,526 INFO L225 Difference]: With dead ends: 2260 [2021-11-22 20:40:21,526 INFO L226 Difference]: Without dead ends: 1142 [2021-11-22 20:40:21,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 20:40:21,528 INFO L933 BasicCegarLoop]: 1463 mSDtfsCounter, 0 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2917 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:40:21,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2917 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:40:21,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2021-11-22 20:40:21,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1142. [2021-11-22 20:40:21,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1112 states have (on average 1.3183453237410072) internal successors, (1466), 1141 states have internal predecessors, (1466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:21,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1466 transitions. [2021-11-22 20:40:21,548 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1466 transitions. Word has length 53 [2021-11-22 20:40:21,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:40:21,550 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 1466 transitions. [2021-11-22 20:40:21,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:21,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1466 transitions. [2021-11-22 20:40:21,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-22 20:40:21,554 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:40:21,554 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] [2021-11-22 20:40:21,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 20:40:21,554 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:40:21,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:40:21,555 INFO L85 PathProgramCache]: Analyzing trace with hash 571961103, now seen corresponding path program 1 times [2021-11-22 20:40:21,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:40:21,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568040498] [2021-11-22 20:40:21,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:21,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:40:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:40:21,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:40:21,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:40:21,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568040498] [2021-11-22 20:40:21,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568040498] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:40:21,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:40:21,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 20:40:21,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504346230] [2021-11-22 20:40:21,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:40:21,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 20:40:21,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:40:21,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 20:40:21,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 20:40:21,708 INFO L87 Difference]: Start difference. First operand 1142 states and 1466 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:21,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:40:21,796 INFO L93 Difference]: Finished difference Result 2515 states and 3224 transitions. [2021-11-22 20:40:21,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 20:40:21,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2021-11-22 20:40:21,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:40:21,801 INFO L225 Difference]: With dead ends: 2515 [2021-11-22 20:40:21,801 INFO L226 Difference]: Without dead ends: 1461 [2021-11-22 20:40:21,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 20:40:21,805 INFO L933 BasicCegarLoop]: 1440 mSDtfsCounter, 1839 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1839 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:40:21,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1839 Valid, 2583 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:40:21,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2021-11-22 20:40:21,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1142. [2021-11-22 20:40:21,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1112 states have (on average 1.3156474820143884) internal successors, (1463), 1141 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:21,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1463 transitions. [2021-11-22 20:40:21,836 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1463 transitions. Word has length 53 [2021-11-22 20:40:21,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:40:21,836 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 1463 transitions. [2021-11-22 20:40:21,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:21,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1463 transitions. [2021-11-22 20:40:21,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-22 20:40:21,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:40:21,838 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] [2021-11-22 20:40:21,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 20:40:21,838 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:40:21,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:40:21,838 INFO L85 PathProgramCache]: Analyzing trace with hash 834729775, now seen corresponding path program 1 times [2021-11-22 20:40:21,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:40:21,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853911878] [2021-11-22 20:40:21,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:21,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:40:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:40:22,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:40:22,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:40:22,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853911878] [2021-11-22 20:40:22,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853911878] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:40:22,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:40:22,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 20:40:22,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26231863] [2021-11-22 20:40:22,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:40:22,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 20:40:22,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:40:22,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 20:40:22,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-22 20:40:22,032 INFO L87 Difference]: Start difference. First operand 1142 states and 1463 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:22,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:40:22,519 INFO L93 Difference]: Finished difference Result 3021 states and 3846 transitions. [2021-11-22 20:40:22,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 20:40:22,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2021-11-22 20:40:22,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:40:22,525 INFO L225 Difference]: With dead ends: 3021 [2021-11-22 20:40:22,525 INFO L226 Difference]: Without dead ends: 1935 [2021-11-22 20:40:22,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-22 20:40:22,527 INFO L933 BasicCegarLoop]: 1419 mSDtfsCounter, 3808 mSDsluCounter, 2027 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3808 SdHoareTripleChecker+Valid, 3446 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 20:40:22,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3808 Valid, 3446 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 20:40:22,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1935 states. [2021-11-22 20:40:22,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1935 to 1142. [2021-11-22 20:40:22,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1112 states have (on average 1.3129496402877698) internal successors, (1460), 1141 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:22,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1460 transitions. [2021-11-22 20:40:22,552 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1460 transitions. Word has length 61 [2021-11-22 20:40:22,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:40:22,553 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 1460 transitions. [2021-11-22 20:40:22,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:22,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1460 transitions. [2021-11-22 20:40:22,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-22 20:40:22,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:40:22,555 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] [2021-11-22 20:40:22,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 20:40:22,555 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:40:22,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:40:22,556 INFO L85 PathProgramCache]: Analyzing trace with hash -2045544657, now seen corresponding path program 1 times [2021-11-22 20:40:22,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:40:22,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617849217] [2021-11-22 20:40:22,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:22,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:40:22,612 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:40:22,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [106577249] [2021-11-22 20:40:22,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:22,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:40:22,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:40:22,614 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) [2021-11-22 20:40:22,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 20:40:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:40:23,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 2380 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 20:40:23,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:40:23,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:40:23,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:40:23,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:40:23,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617849217] [2021-11-22 20:40:23,203 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:40:23,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106577249] [2021-11-22 20:40:23,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106577249] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:40:23,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:40:23,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 20:40:23,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564723700] [2021-11-22 20:40:23,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:40:23,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 20:40:23,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:40:23,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 20:40:23,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 20:40:23,206 INFO L87 Difference]: Start difference. First operand 1142 states and 1460 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:23,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:40:23,567 INFO L93 Difference]: Finished difference Result 3315 states and 4220 transitions. [2021-11-22 20:40:23,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 20:40:23,568 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2021-11-22 20:40:23,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:40:23,574 INFO L225 Difference]: With dead ends: 3315 [2021-11-22 20:40:23,574 INFO L226 Difference]: Without dead ends: 2260 [2021-11-22 20:40:23,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-22 20:40:23,576 INFO L933 BasicCegarLoop]: 1364 mSDtfsCounter, 8055 mSDsluCounter, 2224 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8055 SdHoareTripleChecker+Valid, 3588 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 20:40:23,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8055 Valid, 3588 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 20:40:23,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2021-11-22 20:40:23,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 1142. [2021-11-22 20:40:23,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1112 states have (on average 1.310251798561151) internal successors, (1457), 1141 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:23,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1457 transitions. [2021-11-22 20:40:23,648 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1457 transitions. Word has length 77 [2021-11-22 20:40:23,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:40:23,649 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 1457 transitions. [2021-11-22 20:40:23,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:23,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1457 transitions. [2021-11-22 20:40:23,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-22 20:40:23,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:40:23,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:40:23,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 20:40:23,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:40:23,864 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:40:23,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:40:23,864 INFO L85 PathProgramCache]: Analyzing trace with hash 324665997, now seen corresponding path program 1 times [2021-11-22 20:40:23,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:40:23,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034506878] [2021-11-22 20:40:23,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:23,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:40:23,912 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:40:23,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1155587650] [2021-11-22 20:40:23,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:23,912 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:40:23,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:40:23,913 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) [2021-11-22 20:40:23,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 20:40:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:40:24,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 2485 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 20:40:24,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:40:24,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:40:24,466 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:40:24,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:40:24,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034506878] [2021-11-22 20:40:24,467 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:40:24,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155587650] [2021-11-22 20:40:24,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155587650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:40:24,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:40:24,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 20:40:24,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557686432] [2021-11-22 20:40:24,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:40:24,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 20:40:24,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:40:24,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 20:40:24,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-22 20:40:24,469 INFO L87 Difference]: Start difference. First operand 1142 states and 1457 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:25,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:40:25,224 INFO L93 Difference]: Finished difference Result 3331 states and 4238 transitions. [2021-11-22 20:40:25,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 20:40:25,225 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2021-11-22 20:40:25,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:40:25,233 INFO L225 Difference]: With dead ends: 3331 [2021-11-22 20:40:25,233 INFO L226 Difference]: Without dead ends: 2260 [2021-11-22 20:40:25,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-11-22 20:40:25,237 INFO L933 BasicCegarLoop]: 1331 mSDtfsCounter, 8278 mSDsluCounter, 3123 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8278 SdHoareTripleChecker+Valid, 4454 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-22 20:40:25,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8278 Valid, 4454 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-22 20:40:25,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2021-11-22 20:40:25,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 1142. [2021-11-22 20:40:25,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1112 states have (on average 1.3075539568345325) internal successors, (1454), 1141 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:25,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1454 transitions. [2021-11-22 20:40:25,282 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1454 transitions. Word has length 101 [2021-11-22 20:40:25,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:40:25,282 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 1454 transitions. [2021-11-22 20:40:25,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:25,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1454 transitions. [2021-11-22 20:40:25,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-22 20:40:25,288 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:40:25,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:40:25,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-22 20:40:25,499 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,SelfDestructingSolverStorable5 [2021-11-22 20:40:25,500 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:40:25,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:40:25,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1191929715, now seen corresponding path program 1 times [2021-11-22 20:40:25,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:40:25,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973908606] [2021-11-22 20:40:25,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:25,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:40:25,546 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:40:25,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1539489340] [2021-11-22 20:40:25,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:25,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:40:25,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:40:25,548 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) [2021-11-22 20:40:25,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-22 20:40:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:40:25,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 2715 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 20:40:25,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:40:26,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:40:26,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:40:26,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:40:26,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973908606] [2021-11-22 20:40:26,211 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:40:26,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539489340] [2021-11-22 20:40:26,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539489340] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:40:26,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:40:26,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 20:40:26,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027821167] [2021-11-22 20:40:26,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:40:26,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 20:40:26,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:40:26,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 20:40:26,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-22 20:40:26,213 INFO L87 Difference]: Start difference. First operand 1142 states and 1454 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:26,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:40:26,737 INFO L93 Difference]: Finished difference Result 2258 states and 2883 transitions. [2021-11-22 20:40:26,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 20:40:26,737 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-22 20:40:26,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:40:26,741 INFO L225 Difference]: With dead ends: 2258 [2021-11-22 20:40:26,741 INFO L226 Difference]: Without dead ends: 1290 [2021-11-22 20:40:26,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-22 20:40:26,743 INFO L933 BasicCegarLoop]: 1347 mSDtfsCounter, 5068 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5068 SdHoareTripleChecker+Valid, 3756 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 20:40:26,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5068 Valid, 3756 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 20:40:26,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2021-11-22 20:40:26,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1142. [2021-11-22 20:40:26,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1112 states have (on average 1.3030575539568345) internal successors, (1449), 1141 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:26,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1449 transitions. [2021-11-22 20:40:26,772 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1449 transitions. Word has length 117 [2021-11-22 20:40:26,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:40:26,772 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 1449 transitions. [2021-11-22 20:40:26,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:26,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1449 transitions. [2021-11-22 20:40:26,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-22 20:40:26,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:40:26,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:40:26,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-22 20:40:26,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:40:26,988 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:40:26,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:40:26,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1113366613, now seen corresponding path program 1 times [2021-11-22 20:40:26,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:40:26,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203845620] [2021-11-22 20:40:26,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:26,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:40:27,046 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:40:27,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1354122262] [2021-11-22 20:40:27,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:27,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:40:27,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:40:27,047 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:40:27,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-22 20:40:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:40:27,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 2945 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 20:40:27,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:40:27,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:40:27,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:40:27,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:40:27,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203845620] [2021-11-22 20:40:27,788 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:40:27,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354122262] [2021-11-22 20:40:27,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354122262] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:40:27,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:40:27,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 20:40:27,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048097167] [2021-11-22 20:40:27,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:40:27,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 20:40:27,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:40:27,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 20:40:27,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 20:40:27,790 INFO L87 Difference]: Start difference. First operand 1142 states and 1449 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:31,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-22 20:40:31,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:40:31,735 INFO L93 Difference]: Finished difference Result 3126 states and 3963 transitions. [2021-11-22 20:40:31,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 20:40:31,736 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2021-11-22 20:40:31,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:40:31,742 INFO L225 Difference]: With dead ends: 3126 [2021-11-22 20:40:31,742 INFO L226 Difference]: Without dead ends: 2061 [2021-11-22 20:40:31,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-22 20:40:31,744 INFO L933 BasicCegarLoop]: 2128 mSDtfsCounter, 1109 mSDsluCounter, 6862 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 8990 SdHoareTripleChecker+Invalid, 2093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-22 20:40:31,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 8990 Invalid, 2093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2049 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-22 20:40:31,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2061 states. [2021-11-22 20:40:31,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2061 to 1166. [2021-11-22 20:40:31,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1166 states, 1136 states have (on average 1.3019366197183098) internal successors, (1479), 1165 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:31,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166 states to 1166 states and 1479 transitions. [2021-11-22 20:40:31,784 INFO L78 Accepts]: Start accepts. Automaton has 1166 states and 1479 transitions. Word has length 133 [2021-11-22 20:40:31,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:40:31,785 INFO L470 AbstractCegarLoop]: Abstraction has 1166 states and 1479 transitions. [2021-11-22 20:40:31,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:31,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1166 states and 1479 transitions. [2021-11-22 20:40:31,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-22 20:40:31,786 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:40:31,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:40:31,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-22 20:40:32,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:40:32,005 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:40:32,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:40:32,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1316278763, now seen corresponding path program 1 times [2021-11-22 20:40:32,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:40:32,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943959053] [2021-11-22 20:40:32,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:32,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:40:32,060 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:40:32,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2113738403] [2021-11-22 20:40:32,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:32,061 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:40:32,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:40:32,062 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:40:32,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-22 20:40:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:40:32,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 2939 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 20:40:32,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:40:32,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:40:32,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:40:32,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:40:32,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943959053] [2021-11-22 20:40:32,728 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:40:32,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113738403] [2021-11-22 20:40:32,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113738403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:40:32,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:40:32,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 20:40:32,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570957434] [2021-11-22 20:40:32,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:40:32,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 20:40:32,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:40:32,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 20:40:32,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 20:40:32,731 INFO L87 Difference]: Start difference. First operand 1166 states and 1479 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:32,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:40:32,850 INFO L93 Difference]: Finished difference Result 2273 states and 2886 transitions. [2021-11-22 20:40:32,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 20:40:32,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2021-11-22 20:40:32,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:40:32,854 INFO L225 Difference]: With dead ends: 2273 [2021-11-22 20:40:32,854 INFO L226 Difference]: Without dead ends: 1190 [2021-11-22 20:40:32,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 20:40:32,857 INFO L933 BasicCegarLoop]: 1429 mSDtfsCounter, 18 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4257 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 20:40:32,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 4257 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 20:40:32,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2021-11-22 20:40:32,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 1178. [2021-11-22 20:40:32,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1148 states have (on average 1.298780487804878) internal successors, (1491), 1177 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:32,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1491 transitions. [2021-11-22 20:40:32,893 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1491 transitions. Word has length 133 [2021-11-22 20:40:32,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:40:32,894 INFO L470 AbstractCegarLoop]: Abstraction has 1178 states and 1491 transitions. [2021-11-22 20:40:32,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:32,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1491 transitions. [2021-11-22 20:40:32,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-22 20:40:32,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:40:32,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:40:32,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-22 20:40:33,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:40:33,116 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:40:33,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:40:33,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1076039017, now seen corresponding path program 1 times [2021-11-22 20:40:33,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:40:33,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505249833] [2021-11-22 20:40:33,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:33,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:40:33,168 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:40:33,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [312578285] [2021-11-22 20:40:33,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:33,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:40:33,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:40:33,170 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:40:33,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-22 20:40:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:40:33,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 2934 conjuncts, 77 conjunts are in the unsatisfiable core [2021-11-22 20:40:33,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:40:34,045 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:40:34,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2021-11-22 20:40:34,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 20:40:34,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:40:34,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:40:34,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:40:34,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505249833] [2021-11-22 20:40:34,258 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:40:34,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312578285] [2021-11-22 20:40:34,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312578285] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:40:34,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:40:34,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-22 20:40:34,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991750615] [2021-11-22 20:40:34,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:40:34,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-22 20:40:34,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:40:34,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-22 20:40:34,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2021-11-22 20:40:34,260 INFO L87 Difference]: Start difference. First operand 1178 states and 1491 transitions. Second operand has 16 states, 16 states have (on average 8.3125) internal successors, (133), 16 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:41,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:40:41,138 INFO L93 Difference]: Finished difference Result 9670 states and 12132 transitions. [2021-11-22 20:40:41,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-22 20:40:41,138 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.3125) internal successors, (133), 16 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2021-11-22 20:40:41,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:40:41,165 INFO L225 Difference]: With dead ends: 9670 [2021-11-22 20:40:41,166 INFO L226 Difference]: Without dead ends: 8569 [2021-11-22 20:40:41,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=443, Invalid=1537, Unknown=0, NotChecked=0, Total=1980 [2021-11-22 20:40:41,182 INFO L933 BasicCegarLoop]: 2229 mSDtfsCounter, 16811 mSDsluCounter, 26396 mSDsCounter, 0 mSdLazyCounter, 6860 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16811 SdHoareTripleChecker+Valid, 28625 SdHoareTripleChecker+Invalid, 7051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 6860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-22 20:40:41,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16811 Valid, 28625 Invalid, 7051 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [191 Valid, 6860 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-11-22 20:40:41,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8569 states. [2021-11-22 20:40:41,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8569 to 2069. [2021-11-22 20:40:41,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 2039 states have (on average 1.2986758214811183) internal successors, (2648), 2068 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:41,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2648 transitions. [2021-11-22 20:40:41,305 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2648 transitions. Word has length 133 [2021-11-22 20:40:41,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:40:41,305 INFO L470 AbstractCegarLoop]: Abstraction has 2069 states and 2648 transitions. [2021-11-22 20:40:41,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.3125) internal successors, (133), 16 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:41,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2648 transitions. [2021-11-22 20:40:41,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-22 20:40:41,306 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:40:41,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:40:41,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-22 20:40:41,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:40:41,520 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:40:41,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:40:41,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1608597995, now seen corresponding path program 1 times [2021-11-22 20:40:41,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:40:41,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100240805] [2021-11-22 20:40:41,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:41,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:40:41,571 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:40:41,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1254031096] [2021-11-22 20:40:41,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:41,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:40:41,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:40:41,580 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:40:41,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-22 20:40:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:40:42,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 2935 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 20:40:42,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:40:42,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:40:42,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:40:42,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:40:42,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100240805] [2021-11-22 20:40:42,208 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:40:42,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254031096] [2021-11-22 20:40:42,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254031096] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:40:42,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:40:42,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 20:40:42,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721300368] [2021-11-22 20:40:42,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:40:42,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 20:40:42,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:40:42,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 20:40:42,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 20:40:42,209 INFO L87 Difference]: Start difference. First operand 2069 states and 2648 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:42,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:40:42,404 INFO L93 Difference]: Finished difference Result 5662 states and 7239 transitions. [2021-11-22 20:40:42,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 20:40:42,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2021-11-22 20:40:42,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:40:42,414 INFO L225 Difference]: With dead ends: 5662 [2021-11-22 20:40:42,422 INFO L226 Difference]: Without dead ends: 3707 [2021-11-22 20:40:42,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 20:40:42,426 INFO L933 BasicCegarLoop]: 2604 mSDtfsCounter, 1269 mSDsluCounter, 6495 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 9099 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 20:40:42,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1269 Valid, 9099 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 20:40:42,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2021-11-22 20:40:42,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 2105. [2021-11-22 20:40:42,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2105 states, 2075 states have (on average 1.2925301204819277) internal successors, (2682), 2104 states have internal predecessors, (2682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:42,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2105 states to 2105 states and 2682 transitions. [2021-11-22 20:40:42,494 INFO L78 Accepts]: Start accepts. Automaton has 2105 states and 2682 transitions. Word has length 133 [2021-11-22 20:40:42,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:40:42,494 INFO L470 AbstractCegarLoop]: Abstraction has 2105 states and 2682 transitions. [2021-11-22 20:40:42,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:42,495 INFO L276 IsEmpty]: Start isEmpty. Operand 2105 states and 2682 transitions. [2021-11-22 20:40:42,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-22 20:40:42,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:40:42,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:40:42,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-22 20:40:42,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:40:42,711 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:40:42,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:40:42,712 INFO L85 PathProgramCache]: Analyzing trace with hash 785505495, now seen corresponding path program 1 times [2021-11-22 20:40:42,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:40:42,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762422716] [2021-11-22 20:40:42,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:42,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:40:42,761 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:40:42,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [415154175] [2021-11-22 20:40:42,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:42,761 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:40:42,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:40:42,762 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:40:42,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-22 20:40:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:40:43,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 2924 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 20:40:43,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:40:43,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:40:43,336 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:40:43,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:40:43,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762422716] [2021-11-22 20:40:43,336 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:40:43,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415154175] [2021-11-22 20:40:43,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415154175] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:40:43,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:40:43,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 20:40:43,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89216830] [2021-11-22 20:40:43,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:40:43,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 20:40:43,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:40:43,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 20:40:43,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 20:40:43,337 INFO L87 Difference]: Start difference. First operand 2105 states and 2682 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:43,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:40:43,968 INFO L93 Difference]: Finished difference Result 4515 states and 5803 transitions. [2021-11-22 20:40:43,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 20:40:43,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2021-11-22 20:40:43,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:40:43,972 INFO L225 Difference]: With dead ends: 4515 [2021-11-22 20:40:43,972 INFO L226 Difference]: Without dead ends: 2465 [2021-11-22 20:40:43,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 20:40:43,975 INFO L933 BasicCegarLoop]: 1595 mSDtfsCounter, 306 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 3901 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-22 20:40:43,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 3901 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-22 20:40:43,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2021-11-22 20:40:44,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2249. [2021-11-22 20:40:44,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2249 states, 2219 states have (on average 1.2721946822893195) internal successors, (2823), 2248 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:44,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2249 states to 2249 states and 2823 transitions. [2021-11-22 20:40:44,044 INFO L78 Accepts]: Start accepts. Automaton has 2249 states and 2823 transitions. Word has length 133 [2021-11-22 20:40:44,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:40:44,044 INFO L470 AbstractCegarLoop]: Abstraction has 2249 states and 2823 transitions. [2021-11-22 20:40:44,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:44,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2249 states and 2823 transitions. [2021-11-22 20:40:44,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-22 20:40:44,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:40:44,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:40:44,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-22 20:40:44,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-22 20:40:44,266 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:40:44,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:40:44,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1271488843, now seen corresponding path program 1 times [2021-11-22 20:40:44,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:40:44,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108962094] [2021-11-22 20:40:44,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:44,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:40:44,318 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:40:44,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [227807860] [2021-11-22 20:40:44,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:44,318 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:40:44,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:40:44,319 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:40:44,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-22 20:40:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:40:44,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 2939 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 20:40:44,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:40:44,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:40:44,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:40:44,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:40:44,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108962094] [2021-11-22 20:40:44,973 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:40:44,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227807860] [2021-11-22 20:40:44,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227807860] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:40:44,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:40:44,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 20:40:44,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995194130] [2021-11-22 20:40:44,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:40:44,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 20:40:44,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:40:44,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 20:40:44,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 20:40:44,974 INFO L87 Difference]: Start difference. First operand 2249 states and 2823 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:48,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-22 20:40:48,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:40:48,918 INFO L93 Difference]: Finished difference Result 5570 states and 6951 transitions. [2021-11-22 20:40:48,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 20:40:48,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2021-11-22 20:40:48,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:40:48,924 INFO L225 Difference]: With dead ends: 5570 [2021-11-22 20:40:48,925 INFO L226 Difference]: Without dead ends: 3377 [2021-11-22 20:40:48,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 20:40:48,928 INFO L933 BasicCegarLoop]: 1893 mSDtfsCounter, 891 mSDsluCounter, 3925 mSDsCounter, 0 mSdLazyCounter, 2008 mSolverCounterSat, 290 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 5818 SdHoareTripleChecker+Invalid, 2299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 2008 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-22 20:40:48,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [891 Valid, 5818 Invalid, 2299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 2008 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-22 20:40:48,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3377 states. [2021-11-22 20:40:48,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3377 to 2321. [2021-11-22 20:40:49,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2321 states, 2291 states have (on average 1.2623308598865124) internal successors, (2892), 2320 states have internal predecessors, (2892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:49,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2321 states to 2321 states and 2892 transitions. [2021-11-22 20:40:49,002 INFO L78 Accepts]: Start accepts. Automaton has 2321 states and 2892 transitions. Word has length 137 [2021-11-22 20:40:49,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:40:49,003 INFO L470 AbstractCegarLoop]: Abstraction has 2321 states and 2892 transitions. [2021-11-22 20:40:49,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:49,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2321 states and 2892 transitions. [2021-11-22 20:40:49,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-22 20:40:49,004 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:40:49,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:40:49,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-22 20:40:49,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-22 20:40:49,217 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:40:49,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:40:49,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1082896439, now seen corresponding path program 1 times [2021-11-22 20:40:49,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:40:49,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493649234] [2021-11-22 20:40:49,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:49,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:40:49,262 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:40:49,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1623472614] [2021-11-22 20:40:49,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:49,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:40:49,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:40:49,276 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:40:49,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-22 20:40:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:40:49,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 2944 conjuncts, 71 conjunts are in the unsatisfiable core [2021-11-22 20:40:49,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:40:50,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2021-11-22 20:40:50,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-22 20:40:50,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:40:50,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:40:50,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:40:50,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493649234] [2021-11-22 20:40:50,437 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:40:50,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623472614] [2021-11-22 20:40:50,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623472614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:40:50,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:40:50,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-22 20:40:50,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428201864] [2021-11-22 20:40:50,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:40:50,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 20:40:50,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:40:50,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 20:40:50,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-22 20:40:50,441 INFO L87 Difference]: Start difference. First operand 2321 states and 2892 transitions. Second operand has 12 states, 12 states have (on average 11.416666666666666) internal successors, (137), 12 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:54,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:40:54,373 INFO L93 Difference]: Finished difference Result 13258 states and 16488 transitions. [2021-11-22 20:40:54,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-22 20:40:54,374 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.416666666666666) internal successors, (137), 12 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2021-11-22 20:40:54,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:40:54,391 INFO L225 Difference]: With dead ends: 13258 [2021-11-22 20:40:54,392 INFO L226 Difference]: Without dead ends: 11116 [2021-11-22 20:40:54,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2021-11-22 20:40:54,397 INFO L933 BasicCegarLoop]: 2412 mSDtfsCounter, 13671 mSDsluCounter, 16980 mSDsCounter, 0 mSdLazyCounter, 3213 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13671 SdHoareTripleChecker+Valid, 19392 SdHoareTripleChecker+Invalid, 3281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-22 20:40:54,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13671 Valid, 19392 Invalid, 3281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3213 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-22 20:40:54,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11116 states. [2021-11-22 20:40:54,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11116 to 2330. [2021-11-22 20:40:54,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2330 states, 2300 states have (on average 1.261304347826087) internal successors, (2901), 2329 states have internal predecessors, (2901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:54,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 2901 transitions. [2021-11-22 20:40:54,515 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 2901 transitions. Word has length 137 [2021-11-22 20:40:54,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:40:54,516 INFO L470 AbstractCegarLoop]: Abstraction has 2330 states and 2901 transitions. [2021-11-22 20:40:54,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.416666666666666) internal successors, (137), 12 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:40:54,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 2901 transitions. [2021-11-22 20:40:54,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-22 20:40:54,517 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:40:54,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:40:54,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-22 20:40:54,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-22 20:40:54,731 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:40:54,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:40:54,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1835057829, now seen corresponding path program 1 times [2021-11-22 20:40:54,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:40:54,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7893016] [2021-11-22 20:40:54,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:54,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:40:54,780 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:40:54,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [871648551] [2021-11-22 20:40:54,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:40:54,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:40:54,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:40:54,781 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:40:54,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-22 20:40:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:40:55,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 2966 conjuncts, 140 conjunts are in the unsatisfiable core [2021-11-22 20:40:55,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:40:55,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2021-11-22 20:40:55,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2021-11-22 20:40:56,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2021-11-22 20:40:56,075 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:40:56,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 33 [2021-11-22 20:40:56,094 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:40:56,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 34 [2021-11-22 20:40:56,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-11-22 20:40:56,178 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-22 20:40:56,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-22 20:40:56,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-22 20:40:56,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:40:56,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:40:56,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:40:56,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7893016] [2021-11-22 20:40:56,442 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:40:56,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871648551] [2021-11-22 20:40:56,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871648551] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:40:56,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:40:56,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-11-22 20:40:56,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725591902] [2021-11-22 20:40:56,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:40:56,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-22 20:40:56,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:40:56,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-22 20:40:56,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2021-11-22 20:40:56,444 INFO L87 Difference]: Start difference. First operand 2330 states and 2901 transitions. Second operand has 23 states, 23 states have (on average 6.0) internal successors, (138), 23 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:41:20,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-22 20:41:28,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:41:28,072 INFO L93 Difference]: Finished difference Result 18965 states and 23460 transitions. [2021-11-22 20:41:28,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-11-22 20:41:28,074 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.0) internal successors, (138), 23 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2021-11-22 20:41:28,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:41:28,098 INFO L225 Difference]: With dead ends: 18965 [2021-11-22 20:41:28,099 INFO L226 Difference]: Without dead ends: 16883 [2021-11-22 20:41:28,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8672 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=3683, Invalid=19879, Unknown=0, NotChecked=0, Total=23562 [2021-11-22 20:41:28,109 INFO L933 BasicCegarLoop]: 2169 mSDtfsCounter, 29788 mSDsluCounter, 32934 mSDsCounter, 0 mSdLazyCounter, 14795 mSolverCounterSat, 2864 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29788 SdHoareTripleChecker+Valid, 35103 SdHoareTripleChecker+Invalid, 17660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2864 IncrementalHoareTripleChecker+Valid, 14795 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2021-11-22 20:41:28,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29788 Valid, 35103 Invalid, 17660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2864 Valid, 14795 Invalid, 1 Unknown, 0 Unchecked, 21.9s Time] [2021-11-22 20:41:28,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16883 states. [2021-11-22 20:41:28,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16883 to 6435. [2021-11-22 20:41:28,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6435 states, 6405 states have (on average 1.2644808743169398) internal successors, (8099), 6434 states have internal predecessors, (8099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:41:28,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6435 states to 6435 states and 8099 transitions. [2021-11-22 20:41:28,488 INFO L78 Accepts]: Start accepts. Automaton has 6435 states and 8099 transitions. Word has length 138 [2021-11-22 20:41:28,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:41:28,488 INFO L470 AbstractCegarLoop]: Abstraction has 6435 states and 8099 transitions. [2021-11-22 20:41:28,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.0) internal successors, (138), 23 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:41:28,489 INFO L276 IsEmpty]: Start isEmpty. Operand 6435 states and 8099 transitions. [2021-11-22 20:41:28,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-22 20:41:28,490 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:41:28,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:41:28,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-22 20:41:28,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-22 20:41:28,707 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:41:28,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:41:28,708 INFO L85 PathProgramCache]: Analyzing trace with hash -2030811002, now seen corresponding path program 1 times [2021-11-22 20:41:28,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:41:28,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758043503] [2021-11-22 20:41:28,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:41:28,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:41:28,756 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:41:28,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [717495515] [2021-11-22 20:41:28,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:41:28,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:41:28,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:41:28,757 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:41:28,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-22 20:41:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:41:29,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 2988 conjuncts, 160 conjunts are in the unsatisfiable core [2021-11-22 20:41:29,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:41:29,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 20:41:29,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:41:29,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:41:29,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:41:29,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:41:29,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:41:29,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-11-22 20:41:29,998 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-22 20:41:29,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 67 [2021-11-22 20:41:30,012 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-22 20:41:30,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 56 [2021-11-22 20:41:30,025 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-22 20:41:30,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-22 20:41:30,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:41:30,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-22 20:41:30,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:41:30,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-22 20:41:30,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:41:30,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:41:30,229 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 20:41:30,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-22 20:41:30,324 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 20:41:30,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 54 [2021-11-22 20:41:30,335 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 20:41:30,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 48 [2021-11-22 20:41:30,347 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 20:41:30,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2021-11-22 20:41:30,450 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 20:41:30,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 46 [2021-11-22 20:41:30,454 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 20:41:30,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 17 [2021-11-22 20:41:30,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:41:30,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:41:30,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 29 [2021-11-22 20:41:30,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:41:30,879 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:41:30,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:41:30,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758043503] [2021-11-22 20:41:30,879 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:41:30,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717495515] [2021-11-22 20:41:30,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717495515] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:41:30,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:41:30,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-22 20:41:30,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435562023] [2021-11-22 20:41:30,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:41:30,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-22 20:41:30,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:41:30,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-22 20:41:30,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2021-11-22 20:41:30,881 INFO L87 Difference]: Start difference. First operand 6435 states and 8099 transitions. Second operand has 21 states, 21 states have (on average 6.619047619047619) internal successors, (139), 21 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:41:36,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-22 20:41:38,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-22 20:41:40,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:41:40,425 INFO L93 Difference]: Finished difference Result 12955 states and 16301 transitions. [2021-11-22 20:41:40,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-22 20:41:40,425 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.619047619047619) internal successors, (139), 21 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2021-11-22 20:41:40,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:41:40,433 INFO L225 Difference]: With dead ends: 12955 [2021-11-22 20:41:40,433 INFO L226 Difference]: Without dead ends: 6432 [2021-11-22 20:41:40,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=203, Invalid=789, Unknown=0, NotChecked=0, Total=992 [2021-11-22 20:41:40,439 INFO L933 BasicCegarLoop]: 1400 mSDtfsCounter, 268 mSDsluCounter, 10960 mSDsCounter, 0 mSdLazyCounter, 3711 mSolverCounterSat, 57 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 12360 SdHoareTripleChecker+Invalid, 3770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3711 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-22 20:41:40,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 12360 Invalid, 3770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3711 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2021-11-22 20:41:40,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6432 states. [2021-11-22 20:41:40,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6432 to 6431. [2021-11-22 20:41:40,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6431 states, 6401 states have (on average 1.264489923449461) internal successors, (8094), 6430 states have internal predecessors, (8094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:41:40,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6431 states to 6431 states and 8094 transitions. [2021-11-22 20:41:40,740 INFO L78 Accepts]: Start accepts. Automaton has 6431 states and 8094 transitions. Word has length 139 [2021-11-22 20:41:40,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:41:40,741 INFO L470 AbstractCegarLoop]: Abstraction has 6431 states and 8094 transitions. [2021-11-22 20:41:40,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.619047619047619) internal successors, (139), 21 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:41:40,741 INFO L276 IsEmpty]: Start isEmpty. Operand 6431 states and 8094 transitions. [2021-11-22 20:41:40,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-22 20:41:40,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:41:40,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:41:40,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-22 20:41:40,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-22 20:41:40,955 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:41:40,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:41:40,955 INFO L85 PathProgramCache]: Analyzing trace with hash 943924188, now seen corresponding path program 1 times [2021-11-22 20:41:40,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:41:40,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770150094] [2021-11-22 20:41:40,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:41:40,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:41:41,025 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:41:41,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [910849785] [2021-11-22 20:41:41,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:41:41,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:41:41,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:41:41,029 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:41:41,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-22 20:41:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:41:41,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 3018 conjuncts, 190 conjunts are in the unsatisfiable core [2021-11-22 20:41:41,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:41:41,990 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:41:41,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 37 [2021-11-22 20:41:42,004 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:41:42,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-22 20:41:42,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-22 20:41:42,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-22 20:41:42,564 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:41:42,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 33 [2021-11-22 20:41:42,573 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:41:42,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 34 [2021-11-22 20:41:42,817 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:41:42,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 37 [2021-11-22 20:41:42,825 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:41:42,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-22 20:41:42,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-22 20:41:42,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-22 20:41:43,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2021-11-22 20:41:43,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2021-11-22 20:41:43,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2021-11-22 20:41:43,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2021-11-22 20:41:43,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:41:43,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:41:43,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:41:43,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770150094] [2021-11-22 20:41:43,330 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:41:43,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910849785] [2021-11-22 20:41:43,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910849785] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:41:43,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:41:43,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2021-11-22 20:41:43,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867063417] [2021-11-22 20:41:43,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:41:43,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-22 20:41:43,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:41:43,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-22 20:41:43,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1360, Unknown=0, NotChecked=0, Total=1482 [2021-11-22 20:41:43,332 INFO L87 Difference]: Start difference. First operand 6431 states and 8094 transitions. Second operand has 39 states, 39 states have (on average 3.641025641025641) internal successors, (142), 39 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:42:48,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-22 20:43:07,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:43:07,760 INFO L93 Difference]: Finished difference Result 71949 states and 89664 transitions. [2021-11-22 20:43:07,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 579 states. [2021-11-22 20:43:07,762 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.641025641025641) internal successors, (142), 39 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2021-11-22 20:43:07,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:43:07,845 INFO L225 Difference]: With dead ends: 71949 [2021-11-22 20:43:07,845 INFO L226 Difference]: Without dead ends: 65766 [2021-11-22 20:43:07,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 610 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168869 ImplicationChecksByTransitivity, 40.6s TimeCoverageRelationStatistics Valid=24021, Invalid=349911, Unknown=0, NotChecked=0, Total=373932 [2021-11-22 20:43:07,887 INFO L933 BasicCegarLoop]: 4944 mSDtfsCounter, 35761 mSDsluCounter, 128925 mSDsCounter, 0 mSdLazyCounter, 47753 mSolverCounterSat, 2484 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35761 SdHoareTripleChecker+Valid, 133869 SdHoareTripleChecker+Invalid, 50238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2484 IncrementalHoareTripleChecker+Valid, 47753 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.9s IncrementalHoareTripleChecker+Time [2021-11-22 20:43:07,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35761 Valid, 133869 Invalid, 50238 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2484 Valid, 47753 Invalid, 1 Unknown, 0 Unchecked, 37.9s Time] [2021-11-22 20:43:07,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65766 states. [2021-11-22 20:43:09,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65766 to 19411. [2021-11-22 20:43:09,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19411 states, 19381 states have (on average 1.261338424229916) internal successors, (24446), 19410 states have internal predecessors, (24446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:43:09,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19411 states to 19411 states and 24446 transitions. [2021-11-22 20:43:09,391 INFO L78 Accepts]: Start accepts. Automaton has 19411 states and 24446 transitions. Word has length 142 [2021-11-22 20:43:09,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:43:09,391 INFO L470 AbstractCegarLoop]: Abstraction has 19411 states and 24446 transitions. [2021-11-22 20:43:09,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.641025641025641) internal successors, (142), 39 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:43:09,391 INFO L276 IsEmpty]: Start isEmpty. Operand 19411 states and 24446 transitions. [2021-11-22 20:43:09,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-22 20:43:09,394 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:43:09,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:43:09,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-22 20:43:09,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-22 20:43:09,607 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:43:09,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:43:09,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1001707258, now seen corresponding path program 1 times [2021-11-22 20:43:09,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:43:09,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863847123] [2021-11-22 20:43:09,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:43:09,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:43:09,654 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:43:09,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2013992876] [2021-11-22 20:43:09,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:43:09,654 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:43:09,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:43:09,655 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:43:09,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-22 20:43:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:43:10,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 3020 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-22 20:43:10,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:43:10,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:43:10,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:43:10,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:43:10,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863847123] [2021-11-22 20:43:10,368 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:43:10,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013992876] [2021-11-22 20:43:10,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013992876] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:43:10,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:43:10,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 20:43:10,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60939525] [2021-11-22 20:43:10,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:43:10,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-22 20:43:10,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:43:10,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-22 20:43:10,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-22 20:43:10,369 INFO L87 Difference]: Start difference. First operand 19411 states and 24446 transitions. Second operand has 9 states, 9 states have (on average 16.22222222222222) internal successors, (146), 9 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:43:14,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-22 20:43:16,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-22 20:43:17,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:43:17,530 INFO L93 Difference]: Finished difference Result 28042 states and 35086 transitions. [2021-11-22 20:43:17,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 20:43:17,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.22222222222222) internal successors, (146), 9 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2021-11-22 20:43:17,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:43:17,539 INFO L225 Difference]: With dead ends: 28042 [2021-11-22 20:43:17,539 INFO L226 Difference]: Without dead ends: 9453 [2021-11-22 20:43:17,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2021-11-22 20:43:17,553 INFO L933 BasicCegarLoop]: 3507 mSDtfsCounter, 6133 mSDsluCounter, 18153 mSDsCounter, 0 mSdLazyCounter, 3005 mSolverCounterSat, 291 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6133 SdHoareTripleChecker+Valid, 21660 SdHoareTripleChecker+Invalid, 3297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 3005 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-22 20:43:17,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6133 Valid, 21660 Invalid, 3297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 3005 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2021-11-22 20:43:17,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9453 states. [2021-11-22 20:43:17,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9453 to 3776. [2021-11-22 20:43:17,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3776 states, 3746 states have (on average 1.232781633742659) internal successors, (4618), 3775 states have internal predecessors, (4618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:43:17,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3776 states to 3776 states and 4618 transitions. [2021-11-22 20:43:17,773 INFO L78 Accepts]: Start accepts. Automaton has 3776 states and 4618 transitions. Word has length 146 [2021-11-22 20:43:17,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:43:17,773 INFO L470 AbstractCegarLoop]: Abstraction has 3776 states and 4618 transitions. [2021-11-22 20:43:17,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.22222222222222) internal successors, (146), 9 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:43:17,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3776 states and 4618 transitions. [2021-11-22 20:43:17,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-22 20:43:17,776 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:43:17,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:43:17,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-22 20:43:17,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:43:17,989 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:43:17,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:43:17,990 INFO L85 PathProgramCache]: Analyzing trace with hash -627367960, now seen corresponding path program 1 times [2021-11-22 20:43:17,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:43:17,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841783059] [2021-11-22 20:43:17,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:43:17,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:43:18,032 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:43:18,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1091731962] [2021-11-22 20:43:18,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:43:18,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:43:18,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:43:18,033 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:43:18,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-22 20:43:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:43:18,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 3028 conjuncts, 73 conjunts are in the unsatisfiable core [2021-11-22 20:43:18,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:43:18,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 20:43:18,821 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:43:18,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2021-11-22 20:43:18,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-22 20:43:18,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:43:18,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 35 [2021-11-22 20:43:19,158 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-22 20:43:19,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 38 [2021-11-22 20:43:19,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:43:19,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 33 [2021-11-22 20:43:19,309 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 20:43:19,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2021-11-22 20:43:19,354 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 20:43:19,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2021-11-22 20:43:19,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:43:19,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:43:19,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:43:19,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841783059] [2021-11-22 20:43:19,511 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:43:19,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091731962] [2021-11-22 20:43:19,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091731962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:43:19,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:43:19,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-22 20:43:19,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624389951] [2021-11-22 20:43:19,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:43:19,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-22 20:43:19,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:43:19,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-22 20:43:19,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-11-22 20:43:19,521 INFO L87 Difference]: Start difference. First operand 3776 states and 4618 transitions. Second operand has 15 states, 15 states have (on average 9.733333333333333) internal successors, (146), 15 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:43:23,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:43:23,563 INFO L93 Difference]: Finished difference Result 6635 states and 8097 transitions. [2021-11-22 20:43:23,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 20:43:23,564 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.733333333333333) internal successors, (146), 15 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2021-11-22 20:43:23,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:43:23,567 INFO L225 Difference]: With dead ends: 6635 [2021-11-22 20:43:23,567 INFO L226 Difference]: Without dead ends: 3097 [2021-11-22 20:43:23,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2021-11-22 20:43:23,571 INFO L933 BasicCegarLoop]: 1467 mSDtfsCounter, 421 mSDsluCounter, 9121 mSDsCounter, 0 mSdLazyCounter, 3158 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 10588 SdHoareTripleChecker+Invalid, 3318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 3158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-22 20:43:23,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 10588 Invalid, 3318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 3158 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-22 20:43:23,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3097 states. [2021-11-22 20:43:23,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3097 to 2920. [2021-11-22 20:43:23,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2920 states, 2890 states have (on average 1.2394463667820068) internal successors, (3582), 2919 states have internal predecessors, (3582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:43:23,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2920 states to 2920 states and 3582 transitions. [2021-11-22 20:43:23,737 INFO L78 Accepts]: Start accepts. Automaton has 2920 states and 3582 transitions. Word has length 146 [2021-11-22 20:43:23,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:43:23,737 INFO L470 AbstractCegarLoop]: Abstraction has 2920 states and 3582 transitions. [2021-11-22 20:43:23,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.733333333333333) internal successors, (146), 15 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:43:23,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2920 states and 3582 transitions. [2021-11-22 20:43:23,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-22 20:43:23,739 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:43:23,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:43:23,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-22 20:43:23,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:43:23,948 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:43:23,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:43:23,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1096096370, now seen corresponding path program 1 times [2021-11-22 20:43:23,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:43:23,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243553258] [2021-11-22 20:43:23,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:43:23,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:43:24,011 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:43:24,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1092859515] [2021-11-22 20:43:24,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:43:24,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:43:24,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:43:24,012 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:43:24,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-22 20:43:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:43:24,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 3033 conjuncts, 203 conjunts are in the unsatisfiable core [2021-11-22 20:43:24,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:43:24,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:43:24,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:43:24,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:43:24,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:43:24,818 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-22 20:43:24,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-22 20:43:24,825 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-22 20:43:24,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-11-22 20:43:24,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-22 20:43:24,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-22 20:43:25,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:43:25,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2021-11-22 20:43:25,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:43:25,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2021-11-22 20:43:25,459 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:43:25,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2021-11-22 20:43:25,468 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:43:25,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 37 [2021-11-22 20:43:25,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:43:25,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40 [2021-11-22 20:43:25,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:43:25,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 29 [2021-11-22 20:43:26,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:43:26,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:43:26,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:43:26,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243553258] [2021-11-22 20:43:26,143 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:43:26,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092859515] [2021-11-22 20:43:26,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092859515] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:43:26,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:43:26,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2021-11-22 20:43:26,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264048295] [2021-11-22 20:43:26,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:43:26,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-22 20:43:26,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:43:26,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-22 20:43:26,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=900, Unknown=0, NotChecked=0, Total=992 [2021-11-22 20:43:26,145 INFO L87 Difference]: Start difference. First operand 2920 states and 3582 transitions. Second operand has 32 states, 32 states have (on average 4.625) internal successors, (148), 32 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:43:51,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:43:51,225 INFO L93 Difference]: Finished difference Result 16259 states and 19831 transitions. [2021-11-22 20:43:51,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-11-22 20:43:51,226 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.625) internal successors, (148), 32 states have internal predecessors, (148), 0 states have call successors, (0), 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 148 [2021-11-22 20:43:51,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:43:51,241 INFO L225 Difference]: With dead ends: 16259 [2021-11-22 20:43:51,241 INFO L226 Difference]: Without dead ends: 13628 [2021-11-22 20:43:51,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3756 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1577, Invalid=10413, Unknown=0, NotChecked=0, Total=11990 [2021-11-22 20:43:51,246 INFO L933 BasicCegarLoop]: 4639 mSDtfsCounter, 14499 mSDsluCounter, 66005 mSDsCounter, 0 mSdLazyCounter, 23026 mSolverCounterSat, 868 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14499 SdHoareTripleChecker+Valid, 70644 SdHoareTripleChecker+Invalid, 23894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 868 IncrementalHoareTripleChecker+Valid, 23026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2021-11-22 20:43:51,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14499 Valid, 70644 Invalid, 23894 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [868 Valid, 23026 Invalid, 0 Unknown, 0 Unchecked, 19.8s Time] [2021-11-22 20:43:51,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13628 states. [2021-11-22 20:43:51,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13628 to 5870. [2021-11-22 20:43:51,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5870 states, 5840 states have (on average 1.2409246575342465) internal successors, (7247), 5869 states have internal predecessors, (7247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:43:51,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5870 states to 5870 states and 7247 transitions. [2021-11-22 20:43:51,686 INFO L78 Accepts]: Start accepts. Automaton has 5870 states and 7247 transitions. Word has length 148 [2021-11-22 20:43:51,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:43:51,686 INFO L470 AbstractCegarLoop]: Abstraction has 5870 states and 7247 transitions. [2021-11-22 20:43:51,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.625) internal successors, (148), 32 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:43:51,687 INFO L276 IsEmpty]: Start isEmpty. Operand 5870 states and 7247 transitions. [2021-11-22 20:43:51,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-22 20:43:51,689 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:43:51,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:43:51,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-22 20:43:51,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:43:51,898 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:43:51,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:43:51,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1500302130, now seen corresponding path program 1 times [2021-11-22 20:43:51,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:43:51,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841611605] [2021-11-22 20:43:51,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:43:51,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:43:51,946 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:43:51,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [603032570] [2021-11-22 20:43:51,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:43:51,947 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:43:51,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:43:51,948 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:43:51,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-22 20:43:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:43:52,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 3033 conjuncts, 230 conjunts are in the unsatisfiable core [2021-11-22 20:43:52,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:43:52,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:43:52,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:43:52,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:43:52,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:43:52,760 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-22 20:43:52,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-22 20:43:52,769 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-22 20:43:52,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-11-22 20:43:52,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-22 20:43:52,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-22 20:43:53,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:43:53,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-22 20:43:53,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:43:53,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 58 [2021-11-22 20:43:53,564 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:43:53,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 54 [2021-11-22 20:43:53,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 6 [2021-11-22 20:43:54,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 59 [2021-11-22 20:43:54,814 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 20:43:54,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 56 [2021-11-22 20:43:54,817 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 20:43:54,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 45 [2021-11-22 20:43:54,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 6 [2021-11-22 20:43:54,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2021-11-22 20:43:54,868 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 20:43:54,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 38 [2021-11-22 20:43:54,870 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 20:43:54,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 23 [2021-11-22 20:43:54,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:43:54,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:43:54,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:43:54,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841611605] [2021-11-22 20:43:54,990 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:43:54,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603032570] [2021-11-22 20:43:54,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603032570] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:43:54,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:43:54,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-11-22 20:43:54,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155845833] [2021-11-22 20:43:54,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:43:54,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-22 20:43:54,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:43:54,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-22 20:43:54,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=999, Unknown=0, NotChecked=0, Total=1122 [2021-11-22 20:43:54,991 INFO L87 Difference]: Start difference. First operand 5870 states and 7247 transitions. Second operand has 34 states, 34 states have (on average 4.352941176470588) internal successors, (148), 34 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:44:31,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:44:31,317 INFO L93 Difference]: Finished difference Result 14075 states and 17138 transitions. [2021-11-22 20:44:31,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2021-11-22 20:44:31,317 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.352941176470588) internal successors, (148), 34 states have internal predecessors, (148), 0 states have call successors, (0), 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 148 [2021-11-22 20:44:31,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:44:31,326 INFO L225 Difference]: With dead ends: 14075 [2021-11-22 20:44:31,326 INFO L226 Difference]: Without dead ends: 9919 [2021-11-22 20:44:31,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17433 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=4693, Invalid=41747, Unknown=0, NotChecked=0, Total=46440 [2021-11-22 20:44:31,332 INFO L933 BasicCegarLoop]: 1706 mSDtfsCounter, 4884 mSDsluCounter, 28567 mSDsCounter, 0 mSdLazyCounter, 15743 mSolverCounterSat, 592 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 30273 SdHoareTripleChecker+Invalid, 16335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 592 IncrementalHoareTripleChecker+Valid, 15743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2021-11-22 20:44:31,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4884 Valid, 30273 Invalid, 16335 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [592 Valid, 15743 Invalid, 0 Unknown, 0 Unchecked, 15.5s Time] [2021-11-22 20:44:31,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9919 states. [2021-11-22 20:44:31,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9919 to 6100. [2021-11-22 20:44:31,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6100 states, 6070 states have (on average 1.2385502471169687) internal successors, (7518), 6099 states have internal predecessors, (7518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:44:31,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6100 states to 6100 states and 7518 transitions. [2021-11-22 20:44:31,742 INFO L78 Accepts]: Start accepts. Automaton has 6100 states and 7518 transitions. Word has length 148 [2021-11-22 20:44:31,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:44:31,742 INFO L470 AbstractCegarLoop]: Abstraction has 6100 states and 7518 transitions. [2021-11-22 20:44:31,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.352941176470588) internal successors, (148), 34 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:44:31,743 INFO L276 IsEmpty]: Start isEmpty. Operand 6100 states and 7518 transitions. [2021-11-22 20:44:31,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-22 20:44:31,745 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:44:31,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:44:31,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-22 20:44:31,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:44:31,960 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:44:31,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:44:31,960 INFO L85 PathProgramCache]: Analyzing trace with hash -147988098, now seen corresponding path program 1 times [2021-11-22 20:44:31,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:44:31,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968178307] [2021-11-22 20:44:31,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:44:31,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:44:32,003 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:44:32,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [136752503] [2021-11-22 20:44:32,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:44:32,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:44:32,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:44:32,005 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:44:32,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-22 20:44:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:44:32,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 2996 conjuncts, 180 conjunts are in the unsatisfiable core [2021-11-22 20:44:32,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:44:32,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:44:32,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:44:32,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:44:32,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:44:32,853 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-22 20:44:32,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-22 20:44:32,862 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-22 20:44:32,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-11-22 20:44:32,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-22 20:44:32,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-22 20:44:33,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:44:33,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-22 20:44:33,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:44:33,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 58 [2021-11-22 20:44:33,702 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:44:33,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 54 [2021-11-22 20:44:33,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 6 [2021-11-22 20:44:34,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2021-11-22 20:44:34,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2021-11-22 20:44:34,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-22 20:44:34,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 6 [2021-11-22 20:44:34,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2021-11-22 20:44:34,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2021-11-22 20:44:34,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2021-11-22 20:44:34,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:44:34,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:44:34,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:44:34,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968178307] [2021-11-22 20:44:34,423 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:44:34,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136752503] [2021-11-22 20:44:34,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136752503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:44:34,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:44:34,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-11-22 20:44:34,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165141783] [2021-11-22 20:44:34,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:44:34,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-22 20:44:34,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:44:34,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-22 20:44:34,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=620, Unknown=0, NotChecked=0, Total=702 [2021-11-22 20:44:34,424 INFO L87 Difference]: Start difference. First operand 6100 states and 7518 transitions. Second operand has 27 states, 27 states have (on average 5.481481481481482) internal successors, (148), 27 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:45:24,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:45:24,478 INFO L93 Difference]: Finished difference Result 18755 states and 22725 transitions. [2021-11-22 20:45:24,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2021-11-22 20:45:24,479 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.481481481481482) internal successors, (148), 27 states have internal predecessors, (148), 0 states have call successors, (0), 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 148 [2021-11-22 20:45:24,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:45:24,494 INFO L225 Difference]: With dead ends: 18755 [2021-11-22 20:45:24,494 INFO L226 Difference]: Without dead ends: 17180 [2021-11-22 20:45:24,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17688 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=4953, Invalid=39779, Unknown=0, NotChecked=0, Total=44732 [2021-11-22 20:45:24,500 INFO L933 BasicCegarLoop]: 2239 mSDtfsCounter, 10519 mSDsluCounter, 35168 mSDsCounter, 0 mSdLazyCounter, 21695 mSolverCounterSat, 1543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10519 SdHoareTripleChecker+Valid, 37407 SdHoareTripleChecker+Invalid, 23238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1543 IncrementalHoareTripleChecker+Valid, 21695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2021-11-22 20:45:24,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10519 Valid, 37407 Invalid, 23238 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1543 Valid, 21695 Invalid, 0 Unknown, 0 Unchecked, 27.5s Time] [2021-11-22 20:45:24,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17180 states. [2021-11-22 20:45:25,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17180 to 6505. [2021-11-22 20:45:25,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6505 states, 6475 states have (on average 1.2396911196911198) internal successors, (8027), 6504 states have internal predecessors, (8027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:45:25,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6505 states to 6505 states and 8027 transitions. [2021-11-22 20:45:25,044 INFO L78 Accepts]: Start accepts. Automaton has 6505 states and 8027 transitions. Word has length 148 [2021-11-22 20:45:25,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:45:25,045 INFO L470 AbstractCegarLoop]: Abstraction has 6505 states and 8027 transitions. [2021-11-22 20:45:25,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.481481481481482) internal successors, (148), 27 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:45:25,045 INFO L276 IsEmpty]: Start isEmpty. Operand 6505 states and 8027 transitions. [2021-11-22 20:45:25,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-22 20:45:25,048 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:45:25,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:45:25,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-22 20:45:25,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:45:25,263 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:45:25,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:45:25,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1927517458, now seen corresponding path program 1 times [2021-11-22 20:45:25,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:45:25,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516325414] [2021-11-22 20:45:25,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:45:25,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:45:25,311 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:45:25,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [208691187] [2021-11-22 20:45:25,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:45:25,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:45:25,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:45:25,313 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:45:25,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-22 20:45:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:45:25,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 3043 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 20:45:25,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:45:26,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:45:26,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:45:26,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:45:26,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516325414] [2021-11-22 20:45:26,122 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:45:26,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208691187] [2021-11-22 20:45:26,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208691187] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:45:26,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:45:26,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 20:45:26,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60173975] [2021-11-22 20:45:26,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:45:26,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 20:45:26,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:45:26,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 20:45:26,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 20:45:26,124 INFO L87 Difference]: Start difference. First operand 6505 states and 8027 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:45:33,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:45:33,219 INFO L93 Difference]: Finished difference Result 15363 states and 18819 transitions. [2021-11-22 20:45:33,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 20:45:33,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2021-11-22 20:45:33,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:45:33,232 INFO L225 Difference]: With dead ends: 15363 [2021-11-22 20:45:33,233 INFO L226 Difference]: Without dead ends: 9294 [2021-11-22 20:45:33,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 20:45:33,237 INFO L933 BasicCegarLoop]: 1542 mSDtfsCounter, 1132 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 2169 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 4971 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 2169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-22 20:45:33,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1132 Valid, 4971 Invalid, 2338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 2169 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2021-11-22 20:45:33,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9294 states. [2021-11-22 20:45:33,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9294 to 6415. [2021-11-22 20:45:33,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6415 states, 6385 states have (on average 1.208770555990603) internal successors, (7718), 6414 states have internal predecessors, (7718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:45:33,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6415 states to 6415 states and 7718 transitions. [2021-11-22 20:45:33,713 INFO L78 Accepts]: Start accepts. Automaton has 6415 states and 7718 transitions. Word has length 150 [2021-11-22 20:45:33,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:45:33,713 INFO L470 AbstractCegarLoop]: Abstraction has 6415 states and 7718 transitions. [2021-11-22 20:45:33,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:45:33,714 INFO L276 IsEmpty]: Start isEmpty. Operand 6415 states and 7718 transitions. [2021-11-22 20:45:33,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-22 20:45:33,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:45:33,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:45:33,738 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-11-22 20:45:33,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:45:33,923 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:45:33,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:45:33,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1635482412, now seen corresponding path program 1 times [2021-11-22 20:45:33,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:45:33,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412602184] [2021-11-22 20:45:33,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:45:33,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:45:33,964 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:45:33,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1957343414] [2021-11-22 20:45:33,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:45:33,965 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:45:33,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:45:33,965 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:45:33,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-22 20:45:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:45:34,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 3038 conjuncts, 152 conjunts are in the unsatisfiable core [2021-11-22 20:45:34,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:45:34,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 20:45:35,030 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-22 20:45:35,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-22 20:45:35,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:45:35,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:45:35,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:45:35,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:45:35,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:45:35,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2021-11-22 20:45:35,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:45:35,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2021-11-22 20:45:35,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:45:35,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:45:35,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:45:35,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:45:35,501 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 20:45:35,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 49 [2021-11-22 20:45:35,505 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 20:45:35,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 20 [2021-11-22 20:45:35,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:45:35,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2021-11-22 20:45:35,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:45:35,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-22 20:45:35,880 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 20:45:35,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-22 20:45:35,982 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 20:45:35,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 25 [2021-11-22 20:45:36,131 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 20:45:36,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2021-11-22 20:45:36,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:45:36,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:45:36,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:45:36,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412602184] [2021-11-22 20:45:36,276 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:45:36,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957343414] [2021-11-22 20:45:36,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957343414] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:45:36,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:45:36,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-22 20:45:36,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283527584] [2021-11-22 20:45:36,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:45:36,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-22 20:45:36,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:45:36,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-22 20:45:36,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-11-22 20:45:36,278 INFO L87 Difference]: Start difference. First operand 6415 states and 7718 transitions. Second operand has 17 states, 17 states have (on average 8.823529411764707) internal successors, (150), 17 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:45:42,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:45:42,230 INFO L93 Difference]: Finished difference Result 11187 states and 13449 transitions. [2021-11-22 20:45:42,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 20:45:42,230 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 8.823529411764707) internal successors, (150), 17 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2021-11-22 20:45:42,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:45:42,237 INFO L225 Difference]: With dead ends: 11187 [2021-11-22 20:45:42,237 INFO L226 Difference]: Without dead ends: 6481 [2021-11-22 20:45:42,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=201, Invalid=501, Unknown=0, NotChecked=0, Total=702 [2021-11-22 20:45:42,241 INFO L933 BasicCegarLoop]: 1363 mSDtfsCounter, 222 mSDsluCounter, 8484 mSDsCounter, 0 mSdLazyCounter, 2838 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 9847 SdHoareTripleChecker+Invalid, 2910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-22 20:45:42,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 9847 Invalid, 2910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2838 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-11-22 20:45:42,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6481 states. [2021-11-22 20:45:42,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6481 to 6459. [2021-11-22 20:45:42,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6459 states, 6429 states have (on average 1.2082750038886296) internal successors, (7768), 6458 states have internal predecessors, (7768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:45:42,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6459 states to 6459 states and 7768 transitions. [2021-11-22 20:45:42,721 INFO L78 Accepts]: Start accepts. Automaton has 6459 states and 7768 transitions. Word has length 150 [2021-11-22 20:45:42,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:45:42,721 INFO L470 AbstractCegarLoop]: Abstraction has 6459 states and 7768 transitions. [2021-11-22 20:45:42,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.823529411764707) internal successors, (150), 17 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:45:42,721 INFO L276 IsEmpty]: Start isEmpty. Operand 6459 states and 7768 transitions. [2021-11-22 20:45:42,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-22 20:45:42,723 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:45:42,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:45:42,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-22 20:45:42,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-22 20:45:42,924 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:45:42,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:45:42,925 INFO L85 PathProgramCache]: Analyzing trace with hash 764806164, now seen corresponding path program 1 times [2021-11-22 20:45:42,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:45:42,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126032033] [2021-11-22 20:45:42,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:45:42,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:45:42,968 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:45:42,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1758577228] [2021-11-22 20:45:42,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:45:42,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:45:42,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:45:42,969 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:45:42,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-22 20:45:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:45:43,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 3038 conjuncts, 82 conjunts are in the unsatisfiable core [2021-11-22 20:45:43,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:45:44,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:45:44,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-22 20:45:44,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-11-22 20:45:44,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:45:44,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:45:44,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:45:44,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126032033] [2021-11-22 20:45:44,604 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:45:44,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758577228] [2021-11-22 20:45:44,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758577228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:45:44,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:45:44,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-22 20:45:44,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480890876] [2021-11-22 20:45:44,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:45:44,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-22 20:45:44,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:45:44,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-22 20:45:44,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-22 20:45:44,605 INFO L87 Difference]: Start difference. First operand 6459 states and 7768 transitions. Second operand has 13 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:45:54,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:45:54,533 INFO L93 Difference]: Finished difference Result 13174 states and 15849 transitions. [2021-11-22 20:45:54,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 20:45:54,534 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2021-11-22 20:45:54,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:45:54,544 INFO L225 Difference]: With dead ends: 13174 [2021-11-22 20:45:54,544 INFO L226 Difference]: Without dead ends: 10070 [2021-11-22 20:45:54,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2021-11-22 20:45:54,549 INFO L933 BasicCegarLoop]: 1900 mSDtfsCounter, 6052 mSDsluCounter, 12886 mSDsCounter, 0 mSdLazyCounter, 4910 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6052 SdHoareTripleChecker+Valid, 14786 SdHoareTripleChecker+Invalid, 5264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 4910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-22 20:45:54,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6052 Valid, 14786 Invalid, 5264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 4910 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2021-11-22 20:45:54,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10070 states. [2021-11-22 20:45:55,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10070 to 9200. [2021-11-22 20:45:55,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9200 states, 9170 states have (on average 1.2119956379498364) internal successors, (11114), 9199 states have internal predecessors, (11114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:45:55,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9200 states to 9200 states and 11114 transitions. [2021-11-22 20:45:55,268 INFO L78 Accepts]: Start accepts. Automaton has 9200 states and 11114 transitions. Word has length 150 [2021-11-22 20:45:55,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:45:55,268 INFO L470 AbstractCegarLoop]: Abstraction has 9200 states and 11114 transitions. [2021-11-22 20:45:55,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:45:55,269 INFO L276 IsEmpty]: Start isEmpty. Operand 9200 states and 11114 transitions. [2021-11-22 20:45:55,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-22 20:45:55,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:45:55,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:45:55,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-22 20:45:55,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-22 20:45:55,472 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:45:55,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:45:55,472 INFO L85 PathProgramCache]: Analyzing trace with hash -459787436, now seen corresponding path program 1 times [2021-11-22 20:45:55,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:45:55,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962873818] [2021-11-22 20:45:55,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:45:55,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:45:55,517 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:45:55,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1765604981] [2021-11-22 20:45:55,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:45:55,518 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:45:55,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:45:55,519 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:45:55,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-22 20:45:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:45:56,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 3038 conjuncts, 155 conjunts are in the unsatisfiable core [2021-11-22 20:45:56,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:45:56,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:45:56,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-22 20:45:57,137 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:45:57,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 23 [2021-11-22 20:45:57,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:45:57,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-22 20:45:58,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:45:58,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-22 20:45:58,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:45:58,118 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:45:58,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:45:58,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962873818] [2021-11-22 20:45:58,118 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:45:58,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765604981] [2021-11-22 20:45:58,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765604981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:45:58,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:45:58,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-11-22 20:45:58,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608742730] [2021-11-22 20:45:58,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:45:58,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-22 20:45:58,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:45:58,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-22 20:45:58,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2021-11-22 20:45:58,120 INFO L87 Difference]: Start difference. First operand 9200 states and 11114 transitions. Second operand has 22 states, 22 states have (on average 6.818181818181818) internal successors, (150), 22 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:46:08,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-22 20:46:26,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:46:26,004 INFO L93 Difference]: Finished difference Result 19304 states and 23131 transitions. [2021-11-22 20:46:26,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-22 20:46:26,008 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.818181818181818) internal successors, (150), 22 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2021-11-22 20:46:26,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:46:26,021 INFO L225 Difference]: With dead ends: 19304 [2021-11-22 20:46:26,021 INFO L226 Difference]: Without dead ends: 15949 [2021-11-22 20:46:26,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 998 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=861, Invalid=2921, Unknown=0, NotChecked=0, Total=3782 [2021-11-22 20:46:26,025 INFO L933 BasicCegarLoop]: 2276 mSDtfsCounter, 23758 mSDsluCounter, 27173 mSDsCounter, 0 mSdLazyCounter, 9805 mSolverCounterSat, 2051 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23758 SdHoareTripleChecker+Valid, 29449 SdHoareTripleChecker+Invalid, 11857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2051 IncrementalHoareTripleChecker+Valid, 9805 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2021-11-22 20:46:26,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23758 Valid, 29449 Invalid, 11857 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2051 Valid, 9805 Invalid, 1 Unknown, 0 Unchecked, 22.1s Time] [2021-11-22 20:46:26,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15949 states. [2021-11-22 20:46:26,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15949 to 10326. [2021-11-22 20:46:26,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10326 states, 10296 states have (on average 1.2104700854700854) internal successors, (12463), 10325 states have internal predecessors, (12463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:46:26,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10326 states to 10326 states and 12463 transitions. [2021-11-22 20:46:26,894 INFO L78 Accepts]: Start accepts. Automaton has 10326 states and 12463 transitions. Word has length 150 [2021-11-22 20:46:26,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:46:26,894 INFO L470 AbstractCegarLoop]: Abstraction has 10326 states and 12463 transitions. [2021-11-22 20:46:26,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.818181818181818) internal successors, (150), 22 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:46:26,894 INFO L276 IsEmpty]: Start isEmpty. Operand 10326 states and 12463 transitions. [2021-11-22 20:46:26,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-22 20:46:26,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:46:26,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:46:26,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-22 20:46:27,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-22 20:46:27,104 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:46:27,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:46:27,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1949409748, now seen corresponding path program 1 times [2021-11-22 20:46:27,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:46:27,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867684225] [2021-11-22 20:46:27,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:46:27,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:46:27,143 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:46:27,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [403961531] [2021-11-22 20:46:27,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:46:27,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:46:27,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:46:27,144 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:46:27,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-22 20:46:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:46:27,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 3038 conjuncts, 176 conjunts are in the unsatisfiable core [2021-11-22 20:46:27,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:46:27,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 20:46:27,920 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-22 20:46:27,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-22 20:46:28,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:46:28,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-11-22 20:46:28,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:46:28,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:46:28,404 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 20:46:28,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-22 20:46:28,496 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 20:46:28,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2021-11-22 20:46:28,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:46:28,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:46:29,472 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 20:46:29,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 23 [2021-11-22 20:46:29,716 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 20:46:29,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 23 [2021-11-22 20:46:29,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2021-11-22 20:46:29,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:46:29,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:46:29,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:46:29,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867684225] [2021-11-22 20:46:29,943 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:46:29,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403961531] [2021-11-22 20:46:29,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403961531] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:46:29,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:46:29,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-22 20:46:29,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310301] [2021-11-22 20:46:29,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:46:29,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-22 20:46:29,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:46:29,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-22 20:46:29,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2021-11-22 20:46:29,944 INFO L87 Difference]: Start difference. First operand 10326 states and 12463 transitions. Second operand has 21 states, 21 states have (on average 7.142857142857143) internal successors, (150), 21 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:46:44,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-22 20:46:46,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-22 20:46:58,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:46:58,601 INFO L93 Difference]: Finished difference Result 34628 states and 41800 transitions. [2021-11-22 20:46:58,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-22 20:46:58,603 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.142857142857143) internal successors, (150), 21 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2021-11-22 20:46:58,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:46:58,632 INFO L225 Difference]: With dead ends: 34628 [2021-11-22 20:46:58,632 INFO L226 Difference]: Without dead ends: 24648 [2021-11-22 20:46:58,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2021-11-22 20:46:58,640 INFO L933 BasicCegarLoop]: 2452 mSDtfsCounter, 7944 mSDsluCounter, 31561 mSDsCounter, 0 mSdLazyCounter, 9139 mSolverCounterSat, 550 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7944 SdHoareTripleChecker+Valid, 34013 SdHoareTripleChecker+Invalid, 9691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 9139 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.3s IncrementalHoareTripleChecker+Time [2021-11-22 20:46:58,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7944 Valid, 34013 Invalid, 9691 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [550 Valid, 9139 Invalid, 2 Unknown, 0 Unchecked, 25.3s Time] [2021-11-22 20:46:58,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24648 states. [2021-11-22 20:47:00,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24648 to 17554. [2021-11-22 20:47:00,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17554 states, 17524 states have (on average 1.209940652818991) internal successors, (21203), 17553 states have internal predecessors, (21203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:00,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17554 states to 17554 states and 21203 transitions. [2021-11-22 20:47:00,113 INFO L78 Accepts]: Start accepts. Automaton has 17554 states and 21203 transitions. Word has length 150 [2021-11-22 20:47:00,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:47:00,113 INFO L470 AbstractCegarLoop]: Abstraction has 17554 states and 21203 transitions. [2021-11-22 20:47:00,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.142857142857143) internal successors, (150), 21 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:00,113 INFO L276 IsEmpty]: Start isEmpty. Operand 17554 states and 21203 transitions. [2021-11-22 20:47:00,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-22 20:47:00,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:47:00,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:47:00,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-22 20:47:00,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:47:00,324 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:47:00,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:47:00,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1055923410, now seen corresponding path program 1 times [2021-11-22 20:47:00,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:47:00,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588567304] [2021-11-22 20:47:00,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:47:00,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:47:00,366 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:47:00,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [609061713] [2021-11-22 20:47:00,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:47:00,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:47:00,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:47:00,381 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:47:00,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-22 20:47:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:47:01,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 3043 conjuncts, 124 conjunts are in the unsatisfiable core [2021-11-22 20:47:01,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:47:01,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:47:01,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:47:01,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:47:01,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:47:01,986 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-22 20:47:01,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-22 20:47:01,995 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-22 20:47:01,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-11-22 20:47:02,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-22 20:47:02,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-22 20:47:02,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:47:02,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:47:02,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:47:02,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588567304] [2021-11-22 20:47:02,222 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:47:02,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609061713] [2021-11-22 20:47:02,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609061713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:47:02,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:47:02,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-22 20:47:02,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506777737] [2021-11-22 20:47:02,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:47:02,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 20:47:02,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:47:02,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 20:47:02,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-22 20:47:02,223 INFO L87 Difference]: Start difference. First operand 17554 states and 21203 transitions. Second operand has 10 states, 10 states have (on average 15.0) internal successors, (150), 10 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:06,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:47:06,818 INFO L93 Difference]: Finished difference Result 52281 states and 63162 transitions. [2021-11-22 20:47:06,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-22 20:47:06,820 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.0) internal successors, (150), 10 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2021-11-22 20:47:06,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:47:06,858 INFO L225 Difference]: With dead ends: 52281 [2021-11-22 20:47:06,858 INFO L226 Difference]: Without dead ends: 35300 [2021-11-22 20:47:06,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2021-11-22 20:47:06,871 INFO L933 BasicCegarLoop]: 1554 mSDtfsCounter, 3108 mSDsluCounter, 6903 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3108 SdHoareTripleChecker+Valid, 8457 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-22 20:47:06,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3108 Valid, 8457 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-22 20:47:06,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35300 states. [2021-11-22 20:47:08,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35300 to 17719. [2021-11-22 20:47:08,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17719 states, 17689 states have (on average 1.207982361919837) internal successors, (21368), 17718 states have internal predecessors, (21368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:08,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17719 states to 17719 states and 21368 transitions. [2021-11-22 20:47:08,528 INFO L78 Accepts]: Start accepts. Automaton has 17719 states and 21368 transitions. Word has length 150 [2021-11-22 20:47:08,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:47:08,529 INFO L470 AbstractCegarLoop]: Abstraction has 17719 states and 21368 transitions. [2021-11-22 20:47:08,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.0) internal successors, (150), 10 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:08,529 INFO L276 IsEmpty]: Start isEmpty. Operand 17719 states and 21368 transitions. [2021-11-22 20:47:08,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-22 20:47:08,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:47:08,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:47:08,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-22 20:47:08,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-22 20:47:08,733 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:47:08,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:47:08,734 INFO L85 PathProgramCache]: Analyzing trace with hash 959894206, now seen corresponding path program 1 times [2021-11-22 20:47:08,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:47:08,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106625815] [2021-11-22 20:47:08,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:47:08,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:47:08,777 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:47:08,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [966460738] [2021-11-22 20:47:08,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:47:08,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:47:08,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:47:08,779 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:47:08,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-22 20:47:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:47:09,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 3049 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-22 20:47:09,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:47:09,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:47:09,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:47:09,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:47:09,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106625815] [2021-11-22 20:47:09,577 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:47:09,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966460738] [2021-11-22 20:47:09,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966460738] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:47:09,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:47:09,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 20:47:09,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606110827] [2021-11-22 20:47:09,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:47:09,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 20:47:09,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:47:09,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 20:47:09,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-22 20:47:09,580 INFO L87 Difference]: Start difference. First operand 17719 states and 21368 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:13,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:47:13,986 INFO L93 Difference]: Finished difference Result 56624 states and 68462 transitions. [2021-11-22 20:47:13,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 20:47:13,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2021-11-22 20:47:13,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:47:14,031 INFO L225 Difference]: With dead ends: 56624 [2021-11-22 20:47:14,031 INFO L226 Difference]: Without dead ends: 39262 [2021-11-22 20:47:14,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2021-11-22 20:47:14,048 INFO L933 BasicCegarLoop]: 2444 mSDtfsCounter, 3450 mSDsluCounter, 10754 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3450 SdHoareTripleChecker+Valid, 13198 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-22 20:47:14,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3450 Valid, 13198 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-22 20:47:14,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39262 states. [2021-11-22 20:47:15,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39262 to 17719. [2021-11-22 20:47:15,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17719 states, 17689 states have (on average 1.2035163095709198) internal successors, (21289), 17718 states have internal predecessors, (21289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:15,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17719 states to 17719 states and 21289 transitions. [2021-11-22 20:47:15,714 INFO L78 Accepts]: Start accepts. Automaton has 17719 states and 21289 transitions. Word has length 150 [2021-11-22 20:47:15,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:47:15,714 INFO L470 AbstractCegarLoop]: Abstraction has 17719 states and 21289 transitions. [2021-11-22 20:47:15,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:15,714 INFO L276 IsEmpty]: Start isEmpty. Operand 17719 states and 21289 transitions. [2021-11-22 20:47:15,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-22 20:47:15,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:47:15,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:47:15,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-22 20:47:15,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-22 20:47:15,918 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:47:15,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:47:15,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1581029240, now seen corresponding path program 1 times [2021-11-22 20:47:15,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:47:15,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616007234] [2021-11-22 20:47:15,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:47:15,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:47:15,967 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:47:15,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [782930278] [2021-11-22 20:47:15,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:47:15,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:47:15,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:47:15,968 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:47:15,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-22 20:47:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:47:16,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 3001 conjuncts, 172 conjunts are in the unsatisfiable core [2021-11-22 20:47:16,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:47:16,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 20:47:16,852 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-22 20:47:16,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-22 20:47:16,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:47:16,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:47:16,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:47:16,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:47:16,942 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-22 20:47:16,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-22 20:47:16,951 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-22 20:47:16,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-11-22 20:47:17,268 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 20:47:17,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 49 [2021-11-22 20:47:17,273 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 20:47:17,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 20 [2021-11-22 20:47:17,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:47:17,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:47:17,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:47:17,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-22 20:47:17,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:47:17,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:47:17,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:47:17,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2021-11-22 20:47:17,714 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 20:47:17,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-22 20:47:17,804 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 20:47:17,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2021-11-22 20:47:18,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:47:18,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:47:18,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:47:18,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2021-11-22 20:47:18,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:47:18,709 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:47:18,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:47:18,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616007234] [2021-11-22 20:47:18,709 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:47:18,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782930278] [2021-11-22 20:47:18,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782930278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:47:18,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:47:18,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-22 20:47:18,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717163905] [2021-11-22 20:47:18,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:47:18,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-22 20:47:18,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:47:18,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-22 20:47:18,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2021-11-22 20:47:18,711 INFO L87 Difference]: Start difference. First operand 17719 states and 21289 transitions. Second operand has 19 states, 19 states have (on average 7.894736842105263) internal successors, (150), 19 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:28,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:47:28,504 INFO L93 Difference]: Finished difference Result 28608 states and 34389 transitions. [2021-11-22 20:47:28,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 20:47:28,505 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.894736842105263) internal successors, (150), 19 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2021-11-22 20:47:28,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:47:28,525 INFO L225 Difference]: With dead ends: 28608 [2021-11-22 20:47:28,525 INFO L226 Difference]: Without dead ends: 17687 [2021-11-22 20:47:28,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812 [2021-11-22 20:47:28,535 INFO L933 BasicCegarLoop]: 1393 mSDtfsCounter, 462 mSDsluCounter, 9456 mSDsCounter, 0 mSdLazyCounter, 3937 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 10849 SdHoareTripleChecker+Invalid, 4003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-22 20:47:28,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [462 Valid, 10849 Invalid, 4003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3937 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2021-11-22 20:47:28,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17687 states. [2021-11-22 20:47:30,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17687 to 17440. [2021-11-22 20:47:30,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17440 states, 17410 states have (on average 1.204250430786904) internal successors, (20966), 17439 states have internal predecessors, (20966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:30,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17440 states to 17440 states and 20966 transitions. [2021-11-22 20:47:30,209 INFO L78 Accepts]: Start accepts. Automaton has 17440 states and 20966 transitions. Word has length 150 [2021-11-22 20:47:30,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:47:30,209 INFO L470 AbstractCegarLoop]: Abstraction has 17440 states and 20966 transitions. [2021-11-22 20:47:30,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.894736842105263) internal successors, (150), 19 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:30,209 INFO L276 IsEmpty]: Start isEmpty. Operand 17440 states and 20966 transitions. [2021-11-22 20:47:30,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-22 20:47:30,212 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:47:30,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:47:30,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-11-22 20:47:30,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:47:30,413 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:47:30,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:47:30,414 INFO L85 PathProgramCache]: Analyzing trace with hash -654637942, now seen corresponding path program 1 times [2021-11-22 20:47:30,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:47:30,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542663519] [2021-11-22 20:47:30,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:47:30,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:47:30,466 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:47:30,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1480364590] [2021-11-22 20:47:30,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:47:30,466 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:47:30,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:47:30,467 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:47:30,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-22 20:47:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:47:31,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 3034 conjuncts, 98 conjunts are in the unsatisfiable core [2021-11-22 20:47:31,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:47:31,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 20:47:31,392 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 20:47:31,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-22 20:47:31,756 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:47:31,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 21 [2021-11-22 20:47:31,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:47:31,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-11-22 20:47:31,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:47:31,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-11-22 20:47:31,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:47:31,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-22 20:47:32,130 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 20:47:32,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 18 [2021-11-22 20:47:32,196 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 20:47:32,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2021-11-22 20:47:32,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-22 20:47:32,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:47:32,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:47:32,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:47:32,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542663519] [2021-11-22 20:47:32,604 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:47:32,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480364590] [2021-11-22 20:47:32,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480364590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:47:32,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:47:32,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-22 20:47:32,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592611684] [2021-11-22 20:47:32,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:47:32,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-22 20:47:32,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:47:32,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-22 20:47:32,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-11-22 20:47:32,605 INFO L87 Difference]: Start difference. First operand 17440 states and 20966 transitions. Second operand has 16 states, 16 states have (on average 9.5625) internal successors, (153), 16 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:41,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:47:41,862 INFO L93 Difference]: Finished difference Result 24376 states and 29281 transitions. [2021-11-22 20:47:41,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-22 20:47:41,865 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.5625) internal successors, (153), 16 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2021-11-22 20:47:41,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:47:41,881 INFO L225 Difference]: With dead ends: 24376 [2021-11-22 20:47:41,881 INFO L226 Difference]: Without dead ends: 17733 [2021-11-22 20:47:41,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2021-11-22 20:47:41,886 INFO L933 BasicCegarLoop]: 1382 mSDtfsCounter, 357 mSDsluCounter, 12114 mSDsCounter, 0 mSdLazyCounter, 3450 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 13496 SdHoareTripleChecker+Invalid, 3490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 3450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-22 20:47:41,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 13496 Invalid, 3490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 3450 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2021-11-22 20:47:41,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17733 states. [2021-11-22 20:47:43,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17733 to 17506. [2021-11-22 20:47:43,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17506 states, 17476 states have (on average 1.203879606317235) internal successors, (21039), 17505 states have internal predecessors, (21039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:43,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17506 states to 17506 states and 21039 transitions. [2021-11-22 20:47:43,489 INFO L78 Accepts]: Start accepts. Automaton has 17506 states and 21039 transitions. Word has length 153 [2021-11-22 20:47:43,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:47:43,489 INFO L470 AbstractCegarLoop]: Abstraction has 17506 states and 21039 transitions. [2021-11-22 20:47:43,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.5625) internal successors, (153), 16 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:43,490 INFO L276 IsEmpty]: Start isEmpty. Operand 17506 states and 21039 transitions. [2021-11-22 20:47:43,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-22 20:47:43,493 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:47:43,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:47:43,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-11-22 20:47:43,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:47:43,707 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:47:43,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:47:43,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1199510516, now seen corresponding path program 1 times [2021-11-22 20:47:43,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:47:43,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011636229] [2021-11-22 20:47:43,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:47:43,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:47:43,751 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:47:43,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [265482714] [2021-11-22 20:47:43,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:47:43,751 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:47:43,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:47:43,752 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:47:43,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-22 20:47:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:47:45,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 3031 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-22 20:47:45,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:47:45,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-11-22 20:47:45,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:47:45,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:47:45,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:47:45,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011636229] [2021-11-22 20:47:45,609 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:47:45,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265482714] [2021-11-22 20:47:45,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265482714] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:47:45,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:47:45,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 20:47:45,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325795220] [2021-11-22 20:47:45,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:47:45,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 20:47:45,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:47:45,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 20:47:45,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-22 20:47:45,610 INFO L87 Difference]: Start difference. First operand 17506 states and 21039 transitions. Second operand has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:50,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:47:50,417 INFO L93 Difference]: Finished difference Result 33281 states and 39964 transitions. [2021-11-22 20:47:50,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 20:47:50,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2021-11-22 20:47:50,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:47:50,441 INFO L225 Difference]: With dead ends: 33281 [2021-11-22 20:47:50,441 INFO L226 Difference]: Without dead ends: 18154 [2021-11-22 20:47:50,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-11-22 20:47:50,455 INFO L933 BasicCegarLoop]: 1425 mSDtfsCounter, 163 mSDsluCounter, 4892 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 6317 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-22 20:47:50,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 6317 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-22 20:47:50,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18154 states. [2021-11-22 20:47:52,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18154 to 17477. [2021-11-22 20:47:52,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17477 states, 17447 states have (on average 1.2035880093998967) internal successors, (20999), 17476 states have internal predecessors, (20999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:52,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17477 states to 17477 states and 20999 transitions. [2021-11-22 20:47:52,095 INFO L78 Accepts]: Start accepts. Automaton has 17477 states and 20999 transitions. Word has length 153 [2021-11-22 20:47:52,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:47:52,095 INFO L470 AbstractCegarLoop]: Abstraction has 17477 states and 20999 transitions. [2021-11-22 20:47:52,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:52,096 INFO L276 IsEmpty]: Start isEmpty. Operand 17477 states and 20999 transitions. [2021-11-22 20:47:52,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-22 20:47:52,099 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:47:52,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:47:52,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-22 20:47:52,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:47:52,300 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:47:52,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:47:52,300 INFO L85 PathProgramCache]: Analyzing trace with hash -923807243, now seen corresponding path program 1 times [2021-11-22 20:47:52,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:47:52,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231951317] [2021-11-22 20:47:52,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:47:52,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:47:52,363 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:47:52,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [368219948] [2021-11-22 20:47:52,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:47:52,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:47:52,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:47:52,380 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:47:52,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-11-22 20:47:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:47:53,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 3033 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-22 20:47:53,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:47:53,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2021-11-22 20:47:53,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-22 20:47:53,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 20:47:53,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:47:53,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:47:53,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231951317] [2021-11-22 20:47:53,582 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:47:53,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368219948] [2021-11-22 20:47:53,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368219948] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:47:53,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:47:53,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-22 20:47:53,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835195203] [2021-11-22 20:47:53,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:47:53,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 20:47:53,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:47:53,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 20:47:53,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-22 20:47:53,584 INFO L87 Difference]: Start difference. First operand 17477 states and 20999 transitions. Second operand has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:58,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:47:58,191 INFO L93 Difference]: Finished difference Result 26032 states and 31277 transitions. [2021-11-22 20:47:58,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-22 20:47:58,191 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2021-11-22 20:47:58,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:47:58,206 INFO L225 Difference]: With dead ends: 26032 [2021-11-22 20:47:58,206 INFO L226 Difference]: Without dead ends: 17385 [2021-11-22 20:47:58,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2021-11-22 20:47:58,211 INFO L933 BasicCegarLoop]: 1424 mSDtfsCounter, 2752 mSDsluCounter, 7759 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2752 SdHoareTripleChecker+Valid, 9183 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-22 20:47:58,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2752 Valid, 9183 Invalid, 1772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-22 20:47:58,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17385 states. [2021-11-22 20:47:59,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17385 to 15995. [2021-11-22 20:47:59,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15995 states, 15965 states have (on average 1.2065768869401816) internal successors, (19263), 15994 states have internal predecessors, (19263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:59,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15995 states to 15995 states and 19263 transitions. [2021-11-22 20:47:59,627 INFO L78 Accepts]: Start accepts. Automaton has 15995 states and 19263 transitions. Word has length 154 [2021-11-22 20:47:59,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:47:59,627 INFO L470 AbstractCegarLoop]: Abstraction has 15995 states and 19263 transitions. [2021-11-22 20:47:59,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.4) internal successors, (154), 10 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:47:59,627 INFO L276 IsEmpty]: Start isEmpty. Operand 15995 states and 19263 transitions. [2021-11-22 20:47:59,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-22 20:47:59,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:47:59,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:47:59,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-11-22 20:47:59,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:47:59,840 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:47:59,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:47:59,840 INFO L85 PathProgramCache]: Analyzing trace with hash 789196087, now seen corresponding path program 1 times [2021-11-22 20:47:59,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:47:59,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501641969] [2021-11-22 20:47:59,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:47:59,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:47:59,884 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:47:59,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [221135648] [2021-11-22 20:47:59,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:47:59,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:47:59,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:47:59,888 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:47:59,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-22 20:48:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:48:01,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 3057 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 20:48:01,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:48:01,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 20:48:01,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 20:48:01,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 20:48:01,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:48:01,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501641969] [2021-11-22 20:48:01,374 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:48:01,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221135648] [2021-11-22 20:48:01,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221135648] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 20:48:01,374 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 20:48:01,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-22 20:48:01,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580477712] [2021-11-22 20:48:01,374 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 20:48:01,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 20:48:01,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:48:01,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 20:48:01,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-22 20:48:01,375 INFO L87 Difference]: Start difference. First operand 15995 states and 19263 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:48:06,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:48:06,792 INFO L93 Difference]: Finished difference Result 72589 states and 88131 transitions. [2021-11-22 20:48:06,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 20:48:06,793 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2021-11-22 20:48:06,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:48:06,869 INFO L225 Difference]: With dead ends: 72589 [2021-11-22 20:48:06,869 INFO L226 Difference]: Without dead ends: 57009 [2021-11-22 20:48:06,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-22 20:48:06,888 INFO L933 BasicCegarLoop]: 3065 mSDtfsCounter, 6740 mSDsluCounter, 6262 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6740 SdHoareTripleChecker+Valid, 9327 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-22 20:48:06,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6740 Valid, 9327 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-22 20:48:06,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57009 states. [2021-11-22 20:48:08,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57009 to 17381. [2021-11-22 20:48:08,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17381 states, 17351 states have (on average 1.2104777822603885) internal successors, (21003), 17380 states have internal predecessors, (21003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:48:08,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17381 states to 17381 states and 21003 transitions. [2021-11-22 20:48:08,713 INFO L78 Accepts]: Start accepts. Automaton has 17381 states and 21003 transitions. Word has length 156 [2021-11-22 20:48:08,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:48:08,714 INFO L470 AbstractCegarLoop]: Abstraction has 17381 states and 21003 transitions. [2021-11-22 20:48:08,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:48:08,714 INFO L276 IsEmpty]: Start isEmpty. Operand 17381 states and 21003 transitions. [2021-11-22 20:48:08,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-22 20:48:08,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:48:08,717 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:48:08,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-11-22 20:48:08,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-11-22 20:48:08,917 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:48:08,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:48:08,918 INFO L85 PathProgramCache]: Analyzing trace with hash -760079017, now seen corresponding path program 1 times [2021-11-22 20:48:08,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:48:08,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61813160] [2021-11-22 20:48:08,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:48:08,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:48:08,961 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:48:08,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1890295356] [2021-11-22 20:48:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:48:08,962 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:48:08,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:48:08,963 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:48:08,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-11-22 20:48:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:48:09,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 3066 conjuncts, 141 conjunts are in the unsatisfiable core [2021-11-22 20:48:09,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:48:10,226 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:48:10,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 25 [2021-11-22 20:48:10,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 6 [2021-11-22 20:48:10,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 20:48:10,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 20:48:10,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 6 [2021-11-22 20:48:10,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2021-11-22 20:48:10,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:48:10,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40 [2021-11-22 20:48:10,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:48:10,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 29 [2021-11-22 20:48:10,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2021-11-22 20:48:10,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2021-11-22 20:48:11,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 20:48:11,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 20:48:11,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:48:11,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61813160] [2021-11-22 20:48:11,013 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:48:11,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890295356] [2021-11-22 20:48:11,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890295356] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:48:11,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:48:11,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-22 20:48:11,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268011698] [2021-11-22 20:48:11,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:48:11,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-22 20:48:11,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:48:11,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-22 20:48:11,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-11-22 20:48:11,014 INFO L87 Difference]: Start difference. First operand 17381 states and 21003 transitions. Second operand has 21 states, 21 states have (on average 7.476190476190476) internal successors, (157), 21 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:48:27,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-22 20:48:44,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-22 20:49:12,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:49:12,726 INFO L93 Difference]: Finished difference Result 56755 states and 68315 transitions. [2021-11-22 20:49:12,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2021-11-22 20:49:12,734 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.476190476190476) internal successors, (157), 21 states have internal predecessors, (157), 0 states have call successors, (0), 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 158 [2021-11-22 20:49:12,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:49:12,809 INFO L225 Difference]: With dead ends: 56755 [2021-11-22 20:49:12,809 INFO L226 Difference]: Without dead ends: 51404 [2021-11-22 20:49:12,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8630 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=3574, Invalid=19378, Unknown=0, NotChecked=0, Total=22952 [2021-11-22 20:49:12,827 INFO L933 BasicCegarLoop]: 2503 mSDtfsCounter, 18135 mSDsluCounter, 31442 mSDsCounter, 0 mSdLazyCounter, 14962 mSolverCounterSat, 2225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18135 SdHoareTripleChecker+Valid, 33945 SdHoareTripleChecker+Invalid, 17187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2225 IncrementalHoareTripleChecker+Valid, 14962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.7s IncrementalHoareTripleChecker+Time [2021-11-22 20:49:12,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18135 Valid, 33945 Invalid, 17187 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2225 Valid, 14962 Invalid, 0 Unknown, 0 Unchecked, 39.7s Time] [2021-11-22 20:49:12,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51404 states. [2021-11-22 20:49:15,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51404 to 24710. [2021-11-22 20:49:15,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24710 states, 24680 states have (on average 1.2132090761750405) internal successors, (29942), 24709 states have internal predecessors, (29942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:49:15,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24710 states to 24710 states and 29942 transitions. [2021-11-22 20:49:15,530 INFO L78 Accepts]: Start accepts. Automaton has 24710 states and 29942 transitions. Word has length 158 [2021-11-22 20:49:15,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:49:15,531 INFO L470 AbstractCegarLoop]: Abstraction has 24710 states and 29942 transitions. [2021-11-22 20:49:15,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.476190476190476) internal successors, (157), 21 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:49:15,531 INFO L276 IsEmpty]: Start isEmpty. Operand 24710 states and 29942 transitions. [2021-11-22 20:49:15,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-22 20:49:15,533 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:49:15,533 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:49:15,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-11-22 20:49:15,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:49:15,734 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:49:15,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:49:15,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1649118167, now seen corresponding path program 1 times [2021-11-22 20:49:15,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:49:15,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922864402] [2021-11-22 20:49:15,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:49:15,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:49:15,781 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 20:49:15,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [71372764] [2021-11-22 20:49:15,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:49:15,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:49:15,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:49:15,783 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:49:15,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-11-22 20:49:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:49:16,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 3066 conjuncts, 191 conjunts are in the unsatisfiable core [2021-11-22 20:49:16,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:49:16,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:49:16,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 51 [2021-11-22 20:49:16,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:49:16,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40 [2021-11-22 20:49:17,420 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:49:17,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 40 [2021-11-22 20:49:17,429 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 20:49:17,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 41 [2021-11-22 20:49:17,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-22 20:49:17,441 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-22 20:49:17,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-22 20:49:17,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 20:49:17,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:49:17,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40 [2021-11-22 20:49:17,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 20:49:17,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 29 [2021-11-22 20:49:18,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:49:18,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 20:49:20,602 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_230| Int) (v_ArrVal_7578 Int)) (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_230| (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_230|) 0 v_ArrVal_7578)) |c_ULTIMATE.start_s_sift_down_~queue#1.base|) (+ 40 |c_ULTIMATE.start_s_sift_down_~queue#1.offset|)) 0)) (forall ((|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_230| Int) (v_ArrVal_7576 Int)) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_230| (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_230|) 0 v_ArrVal_7576)) |c_ULTIMATE.start_s_sift_down_~queue#1.base|) (+ 40 |c_ULTIMATE.start_s_sift_down_~queue#1.offset|)) 0))) is different from false [2021-11-22 20:49:29,728 WARN L227 SmtUtils]: Spent 9.04s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 20:49:39,034 WARN L227 SmtUtils]: Spent 9.24s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 20:49:48,394 WARN L227 SmtUtils]: Spent 9.26s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 20:49:48,919 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7573 (Array Int Int)) (|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_233| Int) (v_ArrVal_7574 Int)) (let ((.cse0 (+ 32 |c_ULTIMATE.start_aws_array_list_is_valid_~list#1.offset|))) (or (not (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_233| v_ArrVal_7573) |c_ULTIMATE.start_aws_array_list_is_valid_~list#1.base|) .cse0) 0)) (and (forall ((|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_230| Int) (v_ArrVal_7578 Int)) (= (select (select (let ((.cse1 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_233| (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_233|) 0 v_ArrVal_7574)))) (store .cse1 |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_230| (store (select .cse1 |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_230|) 0 v_ArrVal_7578))) |c_ULTIMATE.start_s_sift_down_~queue#1.base|) (+ 40 |c_ULTIMATE.start_s_sift_down_~queue#1.offset|)) 0)) (forall ((|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_230| Int) (v_ArrVal_7576 Int)) (= (select (select (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_233| v_ArrVal_7573))) (store .cse2 |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_230| (store (select .cse2 |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_230|) 0 v_ArrVal_7576))) |c_ULTIMATE.start_s_sift_down_~queue#1.base|) (+ 40 |c_ULTIMATE.start_s_sift_down_~queue#1.offset|)) 0))) (not (= 0 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_233| (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0#1.base_233|) 0 v_ArrVal_7574)) |c_ULTIMATE.start_aws_array_list_is_valid_~list#1.base|) .cse0)))))) is different from false [2021-11-22 20:49:59,308 INFO L354 Elim1Store]: treesize reduction 19, result has 62.0 percent of original size [2021-11-22 20:49:59,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 207 treesize of output 207 [2021-11-22 20:49:59,342 INFO L354 Elim1Store]: treesize reduction 19, result has 62.0 percent of original size [2021-11-22 20:49:59,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 207 treesize of output 183 [2021-11-22 20:49:59,419 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 20:49:59,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 8774 treesize of output 8490 [2021-11-22 20:49:59,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11238 treesize of output 10230 [2021-11-22 20:49:59,582 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 20:49:59,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 11297 treesize of output 11317 [2021-11-22 20:49:59,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11541 treesize of output 11413 [2021-11-22 20:49:59,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11525 treesize of output 11461 [2021-11-22 20:50:00,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:50:00,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922864402] [2021-11-22 20:50:00,171 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 20:50:00,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71372764] [2021-11-22 20:50:00,172 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-22 20:50:00,172 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:50:00,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-22 20:50:00,172 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-11-22 20:50:00,172 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-22 20:50:00,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 30 remaining) [2021-11-22 20:50:00,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (28 of 30 remaining) [2021-11-22 20:50:00,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (27 of 30 remaining) [2021-11-22 20:50:00,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (26 of 30 remaining) [2021-11-22 20:50:00,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (25 of 30 remaining) [2021-11-22 20:50:00,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (24 of 30 remaining) [2021-11-22 20:50:00,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (23 of 30 remaining) [2021-11-22 20:50:00,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (22 of 30 remaining) [2021-11-22 20:50:00,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (21 of 30 remaining) [2021-11-22 20:50:00,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (20 of 30 remaining) [2021-11-22 20:50:00,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (19 of 30 remaining) [2021-11-22 20:50:00,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (18 of 30 remaining) [2021-11-22 20:50:00,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (17 of 30 remaining) [2021-11-22 20:50:00,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (16 of 30 remaining) [2021-11-22 20:50:00,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (15 of 30 remaining) [2021-11-22 20:50:00,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (14 of 30 remaining) [2021-11-22 20:50:00,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (13 of 30 remaining) [2021-11-22 20:50:00,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (12 of 30 remaining) [2021-11-22 20:50:00,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION (11 of 30 remaining) [2021-11-22 20:50:00,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (10 of 30 remaining) [2021-11-22 20:50:00,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION (9 of 30 remaining) [2021-11-22 20:50:00,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION (8 of 30 remaining) [2021-11-22 20:50:00,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION (7 of 30 remaining) [2021-11-22 20:50:00,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION (6 of 30 remaining) [2021-11-22 20:50:00,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION (5 of 30 remaining) [2021-11-22 20:50:00,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION (4 of 30 remaining) [2021-11-22 20:50:00,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION (3 of 30 remaining) [2021-11-22 20:50:00,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION (2 of 30 remaining) [2021-11-22 20:50:00,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION (1 of 30 remaining) [2021-11-22 20:50:00,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION (0 of 30 remaining) [2021-11-22 20:50:00,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-11-22 20:50:00,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:50:00,394 INFO L732 BasicCegarLoop]: Path program 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] [2021-11-22 20:50:00,396 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 20:50:00,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 08:50:00 BoogieIcfgContainer [2021-11-22 20:50:00,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 20:50:00,444 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 20:50:00,444 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 20:50:00,444 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 20:50:00,444 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:40:20" (3/4) ... [2021-11-22 20:50:00,446 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 20:50:00,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 20:50:00,447 INFO L158 Benchmark]: Toolchain (without parser) took 584278.28ms. Allocated memory was 117.4MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 82.2MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 733.3MB. Max. memory is 16.1GB. [2021-11-22 20:50:00,447 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 40.3MB in the beginning and 40.3MB in the end (delta: 40.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 20:50:00,447 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1582.52ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 81.9MB in the beginning and 94.3MB in the end (delta: -12.4MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. [2021-11-22 20:50:00,447 INFO L158 Benchmark]: Boogie Procedure Inliner took 218.55ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 60.0MB in the end (delta: 34.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-11-22 20:50:00,447 INFO L158 Benchmark]: Boogie Preprocessor took 192.84ms. Allocated memory is still 142.6MB. Free memory was 60.0MB in the beginning and 61.2MB in the end (delta: -1.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2021-11-22 20:50:00,447 INFO L158 Benchmark]: RCFGBuilder took 2456.38ms. Allocated memory was 142.6MB in the beginning and 377.5MB in the end (delta: 234.9MB). Free memory was 61.2MB in the beginning and 282.1MB in the end (delta: -220.9MB). Peak memory consumption was 86.3MB. Max. memory is 16.1GB. [2021-11-22 20:50:00,448 INFO L158 Benchmark]: TraceAbstraction took 579814.09ms. Allocated memory was 377.5MB in the beginning and 2.3GB in the end (delta: 1.9GB). Free memory was 281.1MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2021-11-22 20:50:00,448 INFO L158 Benchmark]: Witness Printer took 2.49ms. Allocated memory is still 2.3GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 20:50:00,452 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 40.3MB in the beginning and 40.3MB in the end (delta: 40.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1582.52ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 81.9MB in the beginning and 94.3MB in the end (delta: -12.4MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 218.55ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 60.0MB in the end (delta: 34.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 192.84ms. Allocated memory is still 142.6MB. Free memory was 60.0MB in the beginning and 61.2MB in the end (delta: -1.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * RCFGBuilder took 2456.38ms. Allocated memory was 142.6MB in the beginning and 377.5MB in the end (delta: 234.9MB). Free memory was 61.2MB in the beginning and 282.1MB in the end (delta: -220.9MB). Peak memory consumption was 86.3MB. Max. memory is 16.1GB. * TraceAbstraction took 579814.09ms. Allocated memory was 377.5MB in the beginning and 2.3GB in the end (delta: 1.9GB). Free memory was 281.1MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Witness Printer took 2.49ms. Allocated memory is still 2.3GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of large string literal at line 7793, overapproximation of __builtin_umull_overflow at line 255. Possible FailurePath: [L6915-L6920] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7360] static __thread int tl_last_error = 0; [L7792-L7940] static struct aws_error_info errors[] = { [(AWS_ERROR_SUCCESS)-0x0000] = { .literal_name = "AWS_ERROR_SUCCESS", .error_code = (AWS_ERROR_SUCCESS), .error_str = ("Success."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SUCCESS" ", " "Success.", } , [(AWS_ERROR_OOM)-0x0000] = { .literal_name = "AWS_ERROR_OOM", .error_code = (AWS_ERROR_OOM), .error_str = ("Out of memory."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OOM" ", " "Out of memory.", } , [(AWS_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_UNKNOWN", .error_code = (AWS_ERROR_UNKNOWN), .error_str = ("Unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNKNOWN" ", " "Unknown error.", } , [(AWS_ERROR_SHORT_BUFFER)-0x0000] = { .literal_name = "AWS_ERROR_SHORT_BUFFER", .error_code = (AWS_ERROR_SHORT_BUFFER), .error_str = ("Buffer is not large enough to hold result."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SHORT_BUFFER" ", " "Buffer is not large enough to hold result.", } , [(AWS_ERROR_OVERFLOW_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_OVERFLOW_DETECTED", .error_code = (AWS_ERROR_OVERFLOW_DETECTED), .error_str = ("Fixed size value overflow was detected."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OVERFLOW_DETECTED" ", " "Fixed size value overflow was detected.", } , [(AWS_ERROR_UNSUPPORTED_OPERATION)-0x0000] = { .literal_name = "AWS_ERROR_UNSUPPORTED_OPERATION", .error_code = (AWS_ERROR_UNSUPPORTED_OPERATION), .error_str = ("Unsupported operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNSUPPORTED_OPERATION" ", " "Unsupported operation.", } , [(AWS_ERROR_INVALID_BUFFER_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BUFFER_SIZE", .error_code = (AWS_ERROR_INVALID_BUFFER_SIZE), .error_str = ("Invalid buffer size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BUFFER_SIZE" ", " "Invalid buffer size.", } , [(AWS_ERROR_INVALID_HEX_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_HEX_STR", .error_code = (AWS_ERROR_INVALID_HEX_STR), .error_str = ("Invalid hex string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_HEX_STR" ", " "Invalid hex string.", } , [(AWS_ERROR_INVALID_BASE64_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BASE64_STR", .error_code = (AWS_ERROR_INVALID_BASE64_STR), .error_str = ("Invalid base64 string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BASE64_STR" ", " "Invalid base64 string.", } , [(AWS_ERROR_INVALID_INDEX)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_INDEX", .error_code = (AWS_ERROR_INVALID_INDEX), .error_str = ("Invalid index for list access."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_INDEX" ", " "Invalid index for list access.", } , [(AWS_ERROR_THREAD_INVALID_SETTINGS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INVALID_SETTINGS", .error_code = (AWS_ERROR_THREAD_INVALID_SETTINGS), .error_str = ("Invalid thread settings."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INVALID_SETTINGS" ", " "Invalid thread settings.", } , [(AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE", .error_code = (AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE), .error_str = ("Insufficent resources for thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE" ", " "Insufficent resources for thread.", } , [(AWS_ERROR_THREAD_NO_PERMISSIONS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_PERMISSIONS", .error_code = (AWS_ERROR_THREAD_NO_PERMISSIONS), .error_str = ("Insufficient permissions for thread operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_PERMISSIONS" ", " "Insufficient permissions for thread operation.", } , [(AWS_ERROR_THREAD_NOT_JOINABLE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NOT_JOINABLE", .error_code = (AWS_ERROR_THREAD_NOT_JOINABLE), .error_str = ("Thread not joinable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NOT_JOINABLE" ", " "Thread not joinable.", } , [(AWS_ERROR_THREAD_NO_SUCH_THREAD_ID)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID", .error_code = (AWS_ERROR_THREAD_NO_SUCH_THREAD_ID), .error_str = ("No such thread ID."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID" ", " "No such thread ID.", } , [(AWS_ERROR_THREAD_DEADLOCK_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_DEADLOCK_DETECTED", .error_code = (AWS_ERROR_THREAD_DEADLOCK_DETECTED), .error_str = ("Deadlock detected in thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_DEADLOCK_DETECTED" ", " "Deadlock detected in thread.", } , [(AWS_ERROR_MUTEX_NOT_INIT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_NOT_INIT", .error_code = (AWS_ERROR_MUTEX_NOT_INIT), .error_str = ("Mutex not initialized."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_NOT_INIT" ", " "Mutex not initialized.", } , [(AWS_ERROR_MUTEX_TIMEOUT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_TIMEOUT", .error_code = (AWS_ERROR_MUTEX_TIMEOUT), .error_str = ("Mutex operation timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_TIMEOUT" ", " "Mutex operation timed out.", } , [(AWS_ERROR_MUTEX_CALLER_NOT_OWNER)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_CALLER_NOT_OWNER", .error_code = (AWS_ERROR_MUTEX_CALLER_NOT_OWNER), .error_str = ("The caller of a mutex operation was not the owner."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_CALLER_NOT_OWNER" ", " "The caller of a mutex operation was not the owner.", } , [(AWS_ERROR_MUTEX_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_FAILED", .error_code = (AWS_ERROR_MUTEX_FAILED), .error_str = ("Mutex operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_FAILED" ", " "Mutex operation failed.", } , [(AWS_ERROR_COND_VARIABLE_INIT_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_INIT_FAILED", .error_code = (AWS_ERROR_COND_VARIABLE_INIT_FAILED), .error_str = ("Condition variable initialization failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_INIT_FAILED" ", " "Condition variable initialization failed.", } , [(AWS_ERROR_COND_VARIABLE_TIMED_OUT)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_TIMED_OUT", .error_code = (AWS_ERROR_COND_VARIABLE_TIMED_OUT), .error_str = ("Condition variable wait timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_TIMED_OUT" ", " "Condition variable wait timed out.", } , [(AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN", .error_code = (AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN), .error_str = ("Condition variable unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN" ", " "Condition variable unknown error.", } , [(AWS_ERROR_CLOCK_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_CLOCK_FAILURE", .error_code = (AWS_ERROR_CLOCK_FAILURE), .error_str = ("Clock operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_CLOCK_FAILURE" ", " "Clock operation failed.", } , [(AWS_ERROR_LIST_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EMPTY", .error_code = (AWS_ERROR_LIST_EMPTY), .error_str = ("Empty list."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EMPTY" ", " "Empty list.", } , [(AWS_ERROR_DEST_COPY_TOO_SMALL)-0x0000] = { .literal_name = "AWS_ERROR_DEST_COPY_TOO_SMALL", .error_code = (AWS_ERROR_DEST_COPY_TOO_SMALL), .error_str = ("Destination of copy is too small."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_DEST_COPY_TOO_SMALL" ", " "Destination of copy is too small.", } , [(AWS_ERROR_LIST_EXCEEDS_MAX_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE", .error_code = (AWS_ERROR_LIST_EXCEEDS_MAX_SIZE), .error_str = ("A requested operation on a list would exceed it's max size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE" ", " "A requested operation on a list would exceed it's max size.", } , [(AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK)-0x0000] = { .literal_name = "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK", .error_code = (AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK), .error_str = ("Attempt to shrink a list in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK" ", " "Attempt to shrink a list in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_FULL)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_FULL", .error_code = (AWS_ERROR_PRIORITY_QUEUE_FULL), .error_str = ("Attempt to add items to a full preallocated queue in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_FULL" ", " "Attempt to add items to a full preallocated queue in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_EMPTY", .error_code = (AWS_ERROR_PRIORITY_QUEUE_EMPTY), .error_str = ("Attempt to pop an item from an empty queue."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_EMPTY" ", " "Attempt to pop an item from an empty queue.", } , [(AWS_ERROR_PRIORITY_QUEUE_BAD_NODE)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE", .error_code = (AWS_ERROR_PRIORITY_QUEUE_BAD_NODE), .error_str = ("Bad node handle passed to remove."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE" ", " "Bad node handle passed to remove.", } , [(AWS_ERROR_HASHTBL_ITEM_NOT_FOUND)-0x0000] = { .literal_name = "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND", .error_code = (AWS_ERROR_HASHTBL_ITEM_NOT_FOUND), .error_str = ("Item not found in hash table."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND" ", " "Item not found in hash table.", } , [(AWS_ERROR_INVALID_DATE_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_DATE_STR", .error_code = (AWS_ERROR_INVALID_DATE_STR), .error_str = ("Date string is invalid and cannot be parsed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_DATE_STR" ", " "Date string is invalid and cannot be parsed.", } , [(AWS_ERROR_INVALID_ARGUMENT)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_ARGUMENT", .error_code = (AWS_ERROR_INVALID_ARGUMENT), .error_str = ("An invalid argument was passed to a function."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_ARGUMENT" ", " "An invalid argument was passed to a function.", } , [(AWS_ERROR_RANDOM_GEN_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_RANDOM_GEN_FAILED", .error_code = (AWS_ERROR_RANDOM_GEN_FAILED), .error_str = ("A call to the random number generator failed. Retry later."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_RANDOM_GEN_FAILED" ", " "A call to the random number generator failed. Retry later.", } , [(AWS_ERROR_MALFORMED_INPUT_STRING)-0x0000] = { .literal_name = "AWS_ERROR_MALFORMED_INPUT_STRING", .error_code = (AWS_ERROR_MALFORMED_INPUT_STRING), .error_str = ("An input string was passed to a parser and the string was incorrectly formatted."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MALFORMED_INPUT_STRING" ", " "An input string was passed to a parser and the string was incorrectly formatted.", } , [(AWS_ERROR_UNIMPLEMENTED)-0x0000] = { .literal_name = "AWS_ERROR_UNIMPLEMENTED", .error_code = (AWS_ERROR_UNIMPLEMENTED), .error_str = ("A function was called, but is not implemented."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNIMPLEMENTED" ", " "A function was called, but is not implemented.", } , [(AWS_ERROR_INVALID_STATE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_STATE", .error_code = (AWS_ERROR_INVALID_STATE), .error_str = ("An invalid state was encountered."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_STATE" ", " "An invalid state was encountered.", } , [(AWS_ERROR_ENVIRONMENT_GET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_GET", .error_code = (AWS_ERROR_ENVIRONMENT_GET), .error_str = ("System call failure when getting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_GET" ", " "System call failure when getting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_SET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_SET", .error_code = (AWS_ERROR_ENVIRONMENT_SET), .error_str = ("System call failure when setting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_SET" ", " "System call failure when setting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_UNSET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_UNSET", .error_code = (AWS_ERROR_ENVIRONMENT_UNSET), .error_str = ("System call failure when unsetting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_UNSET" ", " "System call failure when unsetting an environment variable.", } , [(AWS_ERROR_SYS_CALL_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_SYS_CALL_FAILURE", .error_code = (AWS_ERROR_SYS_CALL_FAILURE), .error_str = ("System call failure"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SYS_CALL_FAILURE" ", " "System call failure", } , [(AWS_ERROR_FILE_INVALID_PATH)-0x0000] = { .literal_name = "AWS_ERROR_FILE_INVALID_PATH", .error_code = (AWS_ERROR_FILE_INVALID_PATH), .error_str = ("Invalid file path."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_FILE_INVALID_PATH" ", " "Invalid file path.", } , [(AWS_ERROR_MAX_FDS_EXCEEDED)-0x0000] = { .literal_name = "AWS_ERROR_MAX_FDS_EXCEEDED", .error_code = (AWS_ERROR_MAX_FDS_EXCEEDED), .error_str = ("The maximum number of fds has been exceeded."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MAX_FDS_EXCEEDED" ", " "The maximum number of fds has been exceeded.", } , [(AWS_ERROR_NO_PERMISSION)-0x0000] = { .literal_name = "AWS_ERROR_NO_PERMISSION", .error_code = (AWS_ERROR_NO_PERMISSION), .error_str = ("User does not have permission to perform the requested action."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_NO_PERMISSION" ", " "User does not have permission to perform the requested action.", } , [(AWS_ERROR_STREAM_UNSEEKABLE)-0x0000] = { .literal_name = "AWS_ERROR_STREAM_UNSEEKABLE", .error_code = (AWS_ERROR_STREAM_UNSEEKABLE), .error_str = ("Stream does not support seek operations"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_STREAM_UNSEEKABLE" ", " "Stream does not support seek operations", } , }; [L7943-L7946] static struct aws_error_info_list s_list = { .error_list = errors, .count = (sizeof(errors) / sizeof((errors)[0])), }; [L7948-L7957] static struct aws_log_subject_info s_common_log_subject_infos[] = { { .subject_id = (AWS_LS_COMMON_GENERAL), .subject_name = ("aws-c-common"), .subject_description = ("Subject for aws-c-common logging that doesn't belong to any particular category") } , { .subject_id = (AWS_LS_COMMON_TASK_SCHEDULER), .subject_name = ("task-scheduler"), .subject_description = ("Subject for task scheduler or task specific logging.") } , }; [L7959-L7962] static struct aws_log_subject_info_list s_common_log_subject_list = { .subject_list = s_common_log_subject_infos, .count = (sizeof(s_common_log_subject_infos) / sizeof((s_common_log_subject_infos)[0])), }; [L7964-L7968] static _Bool s_common_library_initialized = 0 ; [L8486] CALL aws_priority_queue_s_sift_down_harness() [L8456-L8457] struct aws_priority_queue queue = {0, {0, nondet_size_t(), nondet_size_t(), nondet_size_t(), 0}, {0, nondet_size_t(), nondet_size_t(), nondet_size_t(), 0}}; [L8456] CALL, EXPR nondet_size_t() [L263] return __VERIFIER_nondet_ulong(); [L8456] RET, EXPR nondet_size_t() [L8456-L8457] struct aws_priority_queue queue = {0, {0, nondet_size_t(), nondet_size_t(), nondet_size_t(), 0}, {0, nondet_size_t(), nondet_size_t(), nondet_size_t(), 0}}; [L8456] CALL, EXPR nondet_size_t() [L263] return __VERIFIER_nondet_ulong(); [L8456] RET, EXPR nondet_size_t() [L8456-L8457] struct aws_priority_queue queue = {0, {0, nondet_size_t(), nondet_size_t(), nondet_size_t(), 0}, {0, nondet_size_t(), nondet_size_t(), nondet_size_t(), 0}}; [L8456] CALL, EXPR nondet_size_t() [L263] return __VERIFIER_nondet_ulong(); [L8456] RET, EXPR nondet_size_t() [L8456-L8457] struct aws_priority_queue queue = {0, {0, nondet_size_t(), nondet_size_t(), nondet_size_t(), 0}, {0, nondet_size_t(), nondet_size_t(), nondet_size_t(), 0}}; [L8457] CALL, EXPR nondet_size_t() [L263] return __VERIFIER_nondet_ulong(); [L8457] RET, EXPR nondet_size_t() [L8456-L8457] struct aws_priority_queue queue = {0, {0, nondet_size_t(), nondet_size_t(), nondet_size_t(), 0}, {0, nondet_size_t(), nondet_size_t(), nondet_size_t(), 0}}; [L8457] CALL, EXPR nondet_size_t() [L263] return __VERIFIER_nondet_ulong(); [L8457] RET, EXPR nondet_size_t() [L8456-L8457] struct aws_priority_queue queue = {0, {0, nondet_size_t(), nondet_size_t(), nondet_size_t(), 0}, {0, nondet_size_t(), nondet_size_t(), nondet_size_t(), 0}}; [L8457] CALL, EXPR nondet_size_t() [L263] return __VERIFIER_nondet_ulong(); [L8457] RET, EXPR nondet_size_t() [L8456-L8457] struct aws_priority_queue queue = {0, {0, nondet_size_t(), nondet_size_t(), nondet_size_t(), 0}, {0, nondet_size_t(), nondet_size_t(), nondet_size_t(), 0}}; [L8460] CALL, EXPR aws_priority_queue_is_bounded(&queue, 5, 2) [L6791] CALL, EXPR aws_array_list_is_bounded(&queue->container, max_initial_item_allocation, max_item_size) [L6735] EXPR list->item_size [L6734-L6735] _Bool item_size_is_bounded = list->item_size <= max_item_size; [L6738] EXPR list->length [L6737-L6738] _Bool length_is_bounded = list->length <= max_initial_item_allocation; [L6739] return item_size_is_bounded && length_is_bounded; [L6791] RET, EXPR aws_array_list_is_bounded(&queue->container, max_initial_item_allocation, max_item_size) [L6789-L6791] _Bool container_is_bounded = aws_array_list_is_bounded(&queue->container, max_initial_item_allocation, max_item_size); [L6798-L6799] CALL, EXPR aws_array_list_is_bounded( &queue->backpointers, max_initial_item_allocation, sizeof(struct aws_priority_queue_node *)) [L6735] EXPR list->item_size [L6734-L6735] _Bool item_size_is_bounded = list->item_size <= max_item_size; [L6738] EXPR list->length [L6737-L6738] _Bool length_is_bounded = list->length <= max_initial_item_allocation; [L6739] return item_size_is_bounded && length_is_bounded; [L6798-L6799] RET, EXPR aws_array_list_is_bounded( &queue->backpointers, max_initial_item_allocation, sizeof(struct aws_priority_queue_node *)) [L6797-L6799] _Bool backpointers_list_is_bounded = aws_array_list_is_bounded( &queue->backpointers, max_initial_item_allocation, sizeof(struct aws_priority_queue_node *)); [L6800] return container_is_bounded && backpointers_list_is_bounded; [L8460] RET, EXPR aws_priority_queue_is_bounded(&queue, 5, 2) [L8460] CALL assume_abort_if_not(aws_priority_queue_is_bounded(&queue, 5, 2)) [L211] COND FALSE !(!cond) [L8460] RET assume_abort_if_not(aws_priority_queue_is_bounded(&queue, 5, 2)) [L8461] CALL ensure_priority_queue_has_allocated_members(&queue) [L6804] CALL ensure_array_list_has_allocated_data_member(&queue->container) [L6743] EXPR list->current_size [L6743] list->current_size == 0 && list->length == 0 [L6743] COND FALSE !(list->current_size == 0 && list->length == 0) [L6749] EXPR list->current_size [L6749] CALL, EXPR bounded_malloc(list->current_size) [L6932-L6934] CALL assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) [L211] COND FALSE !(!cond) [L6932-L6934] RET assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) [L6935] return malloc(size); [L6749] RET, EXPR bounded_malloc(list->current_size) [L6749] list->data = bounded_malloc(list->current_size) [L6750] CALL, EXPR nondet_bool() [L261] return __VERIFIER_nondet_bool(); [L6750] RET, EXPR nondet_bool() [L6750-L6752] EXPR nondet_bool() ? ((void *)0) : can_fail_allocator() [L6750-L6752] list->alloc = nondet_bool() ? ((void *)0) : can_fail_allocator() [L6804] RET ensure_array_list_has_allocated_data_member(&queue->container) [L6805] CALL ensure_array_list_has_allocated_data_member(&queue->backpointers) [L6743] EXPR list->current_size [L6743] list->current_size == 0 && list->length == 0 [L6743] COND FALSE !(list->current_size == 0 && list->length == 0) [L6749] EXPR list->current_size [L6749] CALL, EXPR bounded_malloc(list->current_size) [L6932-L6934] CALL assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) [L211] COND FALSE !(!cond) [L6932-L6934] RET assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) [L6935] return malloc(size); [L6749] RET, EXPR bounded_malloc(list->current_size) [L6749] list->data = bounded_malloc(list->current_size) [L6750] CALL, EXPR nondet_bool() [L261] return __VERIFIER_nondet_bool(); [L6750] RET, EXPR nondet_bool() [L6750-L6752] EXPR nondet_bool() ? ((void *)0) : can_fail_allocator() [L6750-L6752] list->alloc = nondet_bool() ? ((void *)0) : can_fail_allocator() [L6805] RET ensure_array_list_has_allocated_data_member(&queue->backpointers) [L6806] queue->pred = nondet_compare [L8461] RET ensure_priority_queue_has_allocated_members(&queue) [L8464] CALL, EXPR aws_priority_queue_is_valid(&queue) [L8284] COND FALSE !(!queue) [L8291] EXPR queue->pred [L8290-L8293] _Bool pred_is_valid = (queue->pred != ((void *)0) ); [L8296] CALL, EXPR aws_array_list_is_valid(&queue->container) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L2948] CALL, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2590] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2498] CALL __CPROVER_overflow_mult(a, b) [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] RET __CPROVER_overflow_mult(a, b) [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2948] RET, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2957] EXPR list->current_size [L2957] EXPR (((list->current_size)) == 0) || ((list->data)) [L2957] EXPR list->data [L2957] EXPR (((list->current_size)) == 0) || ((list->data)) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8296] RET, EXPR aws_array_list_is_valid(&queue->container) [L8295-L8296] _Bool container_is_valid = aws_array_list_is_valid(&queue->container); [L8300] CALL, EXPR aws_priority_queue_backpointers_valid(queue) [L8225] COND FALSE !(!queue) [L8235] CALL, EXPR aws_array_list_is_valid(&queue->backpointers) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L2948] CALL, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2590] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2498] CALL __CPROVER_overflow_mult(a, b) [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] RET __CPROVER_overflow_mult(a, b) [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2948] RET, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2957] EXPR list->current_size [L2957] EXPR (((list->current_size)) == 0) || ((list->data)) [L2957] EXPR list->data [L2957] EXPR (((list->current_size)) == 0) || ((list->data)) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8235] RET, EXPR aws_array_list_is_valid(&queue->backpointers) [L8235] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8235] EXPR queue->backpointers.current_size [L8235] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8235-L8238] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8236] EXPR queue->backpointers.data [L8235-L8238] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8233-L8238] _Bool backpointer_list_is_valid = ((aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ))); [L8246] EXPR queue->backpointers.item_size [L8245-L8246] _Bool backpointer_list_item_size = queue->backpointers.item_size == sizeof(struct aws_priority_queue_node *); [L8249] EXPR queue->backpointers.length [L8249] EXPR queue->container.length [L8248-L8249] _Bool lists_equal_lengths = queue->backpointers.length == queue->container.length; [L8252] EXPR queue->backpointers.current_size [L8251-L8252] _Bool backpointers_non_zero_current_size = queue->backpointers.current_size > 0; [L8260-L8263] _Bool backpointers_valid_deep = 1 ; [L8268] EXPR queue->backpointers.current_size [L8268] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 [L8268-L8269] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) [L8266-L8270] _Bool backpointers_zero = (queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) ); [L8272-L8275] _Bool backpointer_struct_is_valid = backpointers_zero || (backpointer_list_item_size && lists_equal_lengths && backpointers_non_zero_current_size && backpointers_valid_deep); [L8277] EXPR (backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers)) [L8277] return ((backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers))); [L8300] RET, EXPR aws_priority_queue_backpointers_valid(queue) [L8299-L8300] _Bool backpointers_valid = aws_priority_queue_backpointers_valid(queue); [L8301] return pred_is_valid && container_is_valid && backpointers_valid; [L8464] RET, EXPR aws_priority_queue_is_valid(&queue) [L8464] CALL assume_abort_if_not(aws_priority_queue_is_valid(&queue)) [L211] COND FALSE !(!cond) [L8464] RET assume_abort_if_not(aws_priority_queue_is_valid(&queue)) [L8465] CALL, EXPR nondet_size_t() [L263] return __VERIFIER_nondet_ulong(); [L8465] RET, EXPR nondet_size_t() [L8465] size_t root = nondet_size_t(); [L8466] EXPR queue.container.length [L8466] CALL assume_abort_if_not(root < queue.container.length) [L211] COND FALSE !(!cond) [L8466] RET assume_abort_if_not(root < queue.container.length) [L8468] queue.backpointers.data [L8468] COND TRUE queue.backpointers.data [L8472] size_t i; [L8473] i = 0 [L8473] EXPR queue.container.length [L8473] COND TRUE i < queue.container.length [L8474] EXPR queue.backpointers.data [L8475] CALL, EXPR can_fail_malloc(sizeof(struct aws_priority_queue_node)) [L6949] CALL, EXPR nondet_bool() [L261] return __VERIFIER_nondet_bool(); [L6949] RET, EXPR nondet_bool() [L6949-L6951] EXPR nondet_bool() ? ((void *)0) : bounded_malloc(size) [L6949-L6951] return nondet_bool() ? ((void *)0) : bounded_malloc(size); [L8475] RET, EXPR can_fail_malloc(sizeof(struct aws_priority_queue_node)) [L8474-L8475] ((struct aws_priority_queue_node **)queue.backpointers.data)[i] = can_fail_malloc(sizeof(struct aws_priority_queue_node)) [L8473] i++ [L8473] EXPR queue.container.length [L8473] COND FALSE !(i < queue.container.length) [L8480] CALL s_sift_down(&queue, root) [L8019] CALL, EXPR aws_priority_queue_is_valid(queue) [L8284] COND FALSE !(!queue) [L8291] EXPR queue->pred [L8290-L8293] _Bool pred_is_valid = (queue->pred != ((void *)0) ); [L8296] CALL, EXPR aws_array_list_is_valid(&queue->container) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L2948] CALL, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2590] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2498] CALL __CPROVER_overflow_mult(a, b) [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] RET __CPROVER_overflow_mult(a, b) [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2948] RET, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8296] RET, EXPR aws_array_list_is_valid(&queue->container) [L8295-L8296] _Bool container_is_valid = aws_array_list_is_valid(&queue->container); [L8300] CALL, EXPR aws_priority_queue_backpointers_valid(queue) [L8225] COND FALSE !(!queue) [L8235] CALL, EXPR aws_array_list_is_valid(&queue->backpointers) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L2948] CALL, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2590] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2498] CALL __CPROVER_overflow_mult(a, b) [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] RET __CPROVER_overflow_mult(a, b) [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2948] RET, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2957] EXPR list->current_size [L2957] EXPR (((list->current_size)) == 0) || ((list->data)) [L2957] EXPR list->data [L2957] EXPR (((list->current_size)) == 0) || ((list->data)) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8235] RET, EXPR aws_array_list_is_valid(&queue->backpointers) [L8235] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8235] EXPR queue->backpointers.current_size [L8235] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8235-L8238] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8236] EXPR queue->backpointers.data [L8235-L8238] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8233-L8238] _Bool backpointer_list_is_valid = ((aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ))); [L8246] EXPR queue->backpointers.item_size [L8245-L8246] _Bool backpointer_list_item_size = queue->backpointers.item_size == sizeof(struct aws_priority_queue_node *); [L8249] EXPR queue->backpointers.length [L8249] EXPR queue->container.length [L8248-L8249] _Bool lists_equal_lengths = queue->backpointers.length == queue->container.length; [L8252] EXPR queue->backpointers.current_size [L8251-L8252] _Bool backpointers_non_zero_current_size = queue->backpointers.current_size > 0; [L8260-L8263] _Bool backpointers_valid_deep = 1 ; [L8268] EXPR queue->backpointers.current_size [L8268] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 [L8268-L8269] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) [L8266-L8270] _Bool backpointers_zero = (queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) ); [L8272-L8275] _Bool backpointer_struct_is_valid = backpointers_zero || (backpointer_list_item_size && lists_equal_lengths && backpointers_non_zero_current_size && backpointers_valid_deep); [L8277] EXPR (backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers)) [L8277] return ((backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers))); [L8300] RET, EXPR aws_priority_queue_backpointers_valid(queue) [L8299-L8300] _Bool backpointers_valid = aws_priority_queue_backpointers_valid(queue); [L8301] return pred_is_valid && container_is_valid && backpointers_valid; [L8019] RET, EXPR aws_priority_queue_is_valid(queue) [L8019] CALL assume_abort_if_not((aws_priority_queue_is_valid(queue))) [L211] COND FALSE !(!cond) [L8019] RET assume_abort_if_not((aws_priority_queue_is_valid(queue))) [L8020] EXPR queue->container.length [L8020] CALL assume_abort_if_not((root < queue->container.length)) [L211] COND FALSE !(!cond) [L8020] RET assume_abort_if_not((root < queue->container.length)) [L8023-L8026] _Bool did_move = 0 ; [L8028] CALL aws_array_list_length(&queue->container) [L3169] EXPR list->length [L3169] EXPR !list->length || list->data [L3169] EXPR list->data [L3169] EXPR !list->length || list->data [L3169] CALL assume_abort_if_not((!list->length || list->data)) [L211] COND FALSE !(!cond) [L3169] RET assume_abort_if_not((!list->length || list->data)) [L3170] CALL, EXPR aws_array_list_is_valid(list) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L2948] CALL, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2590] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2498] CALL __CPROVER_overflow_mult(a, b) [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] RET __CPROVER_overflow_mult(a, b) [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2948] RET, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2957] EXPR list->current_size [L2957] EXPR (((list->current_size)) == 0) || ((list->data)) [L2957] EXPR list->data [L2957] EXPR (((list->current_size)) == 0) || ((list->data)) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3170] RET, EXPR aws_array_list_is_valid(list) [L3170] CALL assume_abort_if_not((aws_array_list_is_valid(list))) [L211] COND FALSE !(!cond) [L3170] RET assume_abort_if_not((aws_array_list_is_valid(list))) [L3171] EXPR list->length [L3171] size_t len = list->length; [L3172] CALL, EXPR aws_array_list_is_valid(list) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L2948] CALL, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2590] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2498] CALL __CPROVER_overflow_mult(a, b) [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] RET __CPROVER_overflow_mult(a, b) [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2948] RET, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2957] EXPR list->current_size [L2957] EXPR (((list->current_size)) == 0) || ((list->data)) [L2957] EXPR list->data [L2957] EXPR (((list->current_size)) == 0) || ((list->data)) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3172] RET, EXPR aws_array_list_is_valid(list) [L3172] CALL __VERIFIER_assert((aws_array_list_is_valid(list))) [L223] COND TRUE !cond [L223] reach_error() - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1145 locations, 30 error locations. Started 1 CEGAR loops. OverallTime: 579.7s, OverallIterations: 36, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 455.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 237671 SdHoareTripleChecker+Valid, 288.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 237671 mSDsluCounter, 652037 SdHoareTripleChecker+Invalid, 236.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 581120 mSDsCounter, 15633 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 205230 IncrementalHoareTripleChecker+Invalid, 220873 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15633 mSolverCounterUnsat, 70917 mSDtfsCounter, 205230 mSolverCounterSat, 1.5s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6028 GetRequests, 4119 SyntacticMatches, 1 SemanticMatches, 1908 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228211 ImplicationChecksByTransitivity, 126.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24710occurred in iteration=35, InterpolantAutomatonStates: 1708, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 22.9s AutomataMinimizationTime, 35 MinimizatonAttempts, 231948 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.3s SsaConstructionTime, 12.8s SatisfiabilityAnalysisTime, 71.5s InterpolantComputationTime, 4741 NumberOfCodeBlocks, 4741 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 4860 ConstructedInterpolants, 0 QuantifiedInterpolants, 33895 SizeOfPredicates, 1168 NumberOfNonLiveVariables, 94797 ConjunctsInSsa, 2846 ConjunctsInUnsatCore, 37 InterpolantComputations, 34 PerfectInterpolantSequences, 5/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-22 20:50:00,687 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-22 20:50:00,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-22 20:50:02,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 20:50:02,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 20:50:02,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 20:50:02,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 20:50:02,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 20:50:02,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 20:50:02,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 20:50:02,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 20:50:02,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 20:50:02,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 20:50:02,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 20:50:02,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 20:50:02,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 20:50:02,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 20:50:02,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 20:50:02,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 20:50:02,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 20:50:02,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 20:50:02,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 20:50:02,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 20:50:02,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 20:50:02,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 20:50:02,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 20:50:02,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 20:50:02,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 20:50:02,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 20:50:02,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 20:50:02,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 20:50:02,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 20:50:02,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 20:50:02,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 20:50:02,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 20:50:02,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 20:50:02,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 20:50:02,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 20:50:02,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 20:50:02,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 20:50:02,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 20:50:02,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 20:50:02,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 20:50:02,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-22 20:50:02,303 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 20:50:02,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 20:50:02,304 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 20:50:02,304 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 20:50:02,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 20:50:02,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 20:50:02,306 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 20:50:02,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 20:50:02,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 20:50:02,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 20:50:02,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 20:50:02,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 20:50:02,307 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 20:50:02,307 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 20:50:02,308 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 20:50:02,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 20:50:02,308 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 20:50:02,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 20:50:02,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 20:50:02,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 20:50:02,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 20:50:02,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 20:50:02,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 20:50:02,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 20:50:02,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 20:50:02,309 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 20:50:02,309 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 20:50:02,310 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 20:50:02,310 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 20:50:02,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 20:50:02,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 20:50:02,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 20:50:02,310 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 [2021-11-22 20:50:02,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 20:50:02,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 20:50:02,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 20:50:02,570 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 20:50:02,571 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 20:50:02,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2021-11-22 20:50:02,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0599e8b1f/80cb61610c7b4be59df69c624aa3d61b/FLAG058cf2387 [2021-11-22 20:50:03,190 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 20:50:03,191 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2021-11-22 20:50:03,220 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0599e8b1f/80cb61610c7b4be59df69c624aa3d61b/FLAG058cf2387 [2021-11-22 20:50:03,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0599e8b1f/80cb61610c7b4be59df69c624aa3d61b [2021-11-22 20:50:03,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 20:50:03,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 20:50:03,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 20:50:03,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 20:50:03,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 20:50:03,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:50:03" (1/1) ... [2021-11-22 20:50:03,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37337a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:50:03, skipping insertion in model container [2021-11-22 20:50:03,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:50:03" (1/1) ... [2021-11-22 20:50:03,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 20:50:03,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 20:50:03,704 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2021-11-22 20:50:03,711 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2021-11-22 20:50:04,171 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,172 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,172 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,172 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,173 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,181 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,182 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,183 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,183 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,185 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,185 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,186 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,186 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,399 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-22 20:50:04,400 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-22 20:50:04,401 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-22 20:50:04,401 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-22 20:50:04,402 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-22 20:50:04,403 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-22 20:50:04,403 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-22 20:50:04,404 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-22 20:50:04,404 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-22 20:50:04,404 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-22 20:50:04,490 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-22 20:50:04,511 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,512 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,516 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,528 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,574 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,576 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,577 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,578 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,578 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,579 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,579 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,580 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,581 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,581 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,581 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,582 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,582 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,585 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,585 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,586 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,586 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,596 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,596 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,601 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,601 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,602 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,620 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 20:50:04,640 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-22 20:50:04,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 20:50:04,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2021-11-22 20:50:04,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2021-11-22 20:50:04,714 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,715 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,715 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,715 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,715 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,733 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,733 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,734 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,734 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,734 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,735 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,735 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,735 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,753 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-22 20:50:04,753 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-22 20:50:04,754 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-22 20:50:04,754 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-22 20:50:04,755 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-22 20:50:04,755 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-22 20:50:04,755 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-22 20:50:04,756 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-22 20:50:04,756 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-22 20:50:04,756 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-22 20:50:04,767 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-22 20:50:04,774 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,775 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,775 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,789 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,804 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,805 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,805 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,805 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,805 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,806 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,806 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,806 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,806 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,807 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,807 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,807 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,808 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,808 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,808 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,809 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,809 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,810 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,811 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,814 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,814 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,815 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 20:50:04,830 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 20:50:04,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2021-11-22 20:50:04,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2021-11-22 20:50:04,875 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,876 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,876 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,877 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,877 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,881 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,881 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,882 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,882 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,882 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,883 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,883 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,883 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,921 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-22 20:50:04,921 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-22 20:50:04,921 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-22 20:50:04,922 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-22 20:50:04,923 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-22 20:50:04,923 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-22 20:50:04,923 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-22 20:50:04,923 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-22 20:50:04,924 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-22 20:50:04,924 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-22 20:50:04,936 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-22 20:50:04,951 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,952 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,952 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,957 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,980 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,981 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,981 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,981 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,982 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,982 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,982 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,982 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,983 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,983 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,983 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,983 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,983 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,984 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,984 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,984 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,985 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,986 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:04,986 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:05,001 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:05,002 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:05,002 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:50:05,006 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 20:50:05,194 INFO L208 MainTranslator]: Completed translation [2021-11-22 20:50:05,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:50:05 WrapperNode [2021-11-22 20:50:05,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 20:50:05,196 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 20:50:05,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 20:50:05,196 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 20:50:05,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:50:05" (1/1) ... [2021-11-22 20:50:05,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:50:05" (1/1) ... [2021-11-22 20:50:05,420 INFO L137 Inliner]: procedures = 717, calls = 1905, calls flagged for inlining = 797, calls inlined = 454, statements flattened = 6063 [2021-11-22 20:50:05,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 20:50:05,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 20:50:05,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 20:50:05,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 20:50:05,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:50:05" (1/1) ... [2021-11-22 20:50:05,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:50:05" (1/1) ... [2021-11-22 20:50:05,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:50:05" (1/1) ... [2021-11-22 20:50:05,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:50:05" (1/1) ... [2021-11-22 20:50:05,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:50:05" (1/1) ... [2021-11-22 20:50:05,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:50:05" (1/1) ... [2021-11-22 20:50:05,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:50:05" (1/1) ... [2021-11-22 20:50:05,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 20:50:05,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 20:50:05,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 20:50:05,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 20:50:05,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:50:05" (1/1) ... [2021-11-22 20:50:05,615 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 20:50:05,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:50:05,640 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) [2021-11-22 20:50:05,642 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 [2021-11-22 20:50:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 20:50:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 20:50:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-22 20:50:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-22 20:50:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 20:50:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 20:50:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 20:50:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 20:50:05,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 20:50:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-22 20:50:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-22 20:50:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 20:50:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 20:50:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-22 20:50:05,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-22 20:50:05,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 20:50:05,955 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 20:50:05,956 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 20:50:15,776 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 20:50:15,785 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 20:50:15,786 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-22 20:50:15,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:50:15 BoogieIcfgContainer [2021-11-22 20:50:15,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 20:50:15,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 20:50:15,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 20:50:15,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 20:50:15,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 08:50:03" (1/3) ... [2021-11-22 20:50:15,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cdaf1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:50:15, skipping insertion in model container [2021-11-22 20:50:15,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:50:05" (2/3) ... [2021-11-22 20:50:15,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cdaf1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:50:15, skipping insertion in model container [2021-11-22 20:50:15,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:50:15" (3/3) ... [2021-11-22 20:50:15,793 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_down_harness.i [2021-11-22 20:50:15,796 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 20:50:15,796 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-11-22 20:50:15,831 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 20:50:15,835 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 [2021-11-22 20:50:15,835 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-11-22 20:50:15,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 1145 states, 1114 states have (on average 1.4192100538599641) internal successors, (1581), 1144 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:15,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-22 20:50:15,863 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:50:15,863 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] [2021-11-22 20:50:15,864 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:50:15,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:50:15,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1715157979, now seen corresponding path program 1 times [2021-11-22 20:50:15,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 20:50:15,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [890847275] [2021-11-22 20:50:15,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:50:15,881 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 20:50:15,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-22 20:50:15,885 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 20:50:15,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 20:50:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:50:16,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-22 20:50:16,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:50:16,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:50:16,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 20:50:16,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:50:16,660 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 20:50:16,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [890847275] [2021-11-22 20:50:16,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [890847275] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 20:50:16,660 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:50:16,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 20:50:16,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508231325] [2021-11-22 20:50:16,662 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 20:50:16,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 20:50:16,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 20:50:16,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 20:50:16,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 20:50:16,685 INFO L87 Difference]: Start difference. First operand has 1145 states, 1114 states have (on average 1.4192100538599641) internal successors, (1581), 1144 states have internal predecessors, (1581), 0 states have call successors, (0), 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 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:16,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:50:16,728 INFO L93 Difference]: Finished difference Result 2278 states and 3149 transitions. [2021-11-22 20:50:16,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 20:50:16,730 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2021-11-22 20:50:16,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:50:16,752 INFO L225 Difference]: With dead ends: 2278 [2021-11-22 20:50:16,752 INFO L226 Difference]: Without dead ends: 1140 [2021-11-22 20:50:16,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 20:50:16,763 INFO L933 BasicCegarLoop]: 1469 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:50:16,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:50:16,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2021-11-22 20:50:16,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1140. [2021-11-22 20:50:16,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1110 states have (on average 1.318918918918919) internal successors, (1464), 1139 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:16,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1464 transitions. [2021-11-22 20:50:16,837 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1464 transitions. Word has length 53 [2021-11-22 20:50:16,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:50:16,837 INFO L470 AbstractCegarLoop]: Abstraction has 1140 states and 1464 transitions. [2021-11-22 20:50:16,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:16,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1464 transitions. [2021-11-22 20:50:16,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-22 20:50:16,844 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:50:16,844 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] [2021-11-22 20:50:16,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-22 20:50:17,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-22 20:50:17,052 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:50:17,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:50:17,052 INFO L85 PathProgramCache]: Analyzing trace with hash -799846195, now seen corresponding path program 1 times [2021-11-22 20:50:17,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 20:50:17,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [38592205] [2021-11-22 20:50:17,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:50:17,054 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 20:50:17,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-22 20:50:17,058 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 20:50:17,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 20:50:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:50:17,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 20:50:17,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:50:17,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:50:17,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 20:50:17,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:50:17,724 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 20:50:17,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [38592205] [2021-11-22 20:50:17,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [38592205] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 20:50:17,724 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:50:17,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-22 20:50:17,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460561338] [2021-11-22 20:50:17,724 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 20:50:17,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 20:50:17,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 20:50:17,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 20:50:17,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 20:50:17,726 INFO L87 Difference]: Start difference. First operand 1140 states and 1464 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:17,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:50:17,811 INFO L93 Difference]: Finished difference Result 2260 states and 2907 transitions. [2021-11-22 20:50:17,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 20:50:17,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2021-11-22 20:50:17,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:50:17,815 INFO L225 Difference]: With dead ends: 2260 [2021-11-22 20:50:17,815 INFO L226 Difference]: Without dead ends: 1142 [2021-11-22 20:50:17,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 20:50:17,817 INFO L933 BasicCegarLoop]: 1463 mSDtfsCounter, 0 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2917 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 20:50:17,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2917 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 20:50:17,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2021-11-22 20:50:17,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1142. [2021-11-22 20:50:17,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1112 states have (on average 1.3183453237410072) internal successors, (1466), 1141 states have internal predecessors, (1466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:17,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1466 transitions. [2021-11-22 20:50:17,831 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1466 transitions. Word has length 53 [2021-11-22 20:50:17,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:50:17,831 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 1466 transitions. [2021-11-22 20:50:17,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:17,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1466 transitions. [2021-11-22 20:50:17,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-22 20:50:17,832 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:50:17,832 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] [2021-11-22 20:50:17,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-22 20:50:18,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-22 20:50:18,036 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:50:18,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:50:18,037 INFO L85 PathProgramCache]: Analyzing trace with hash 571961103, now seen corresponding path program 1 times [2021-11-22 20:50:18,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 20:50:18,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203248811] [2021-11-22 20:50:18,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:50:18,038 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 20:50:18,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-22 20:50:18,039 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 20:50:18,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-22 20:50:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:50:18,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 20:50:18,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:50:18,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:50:18,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 20:50:18,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:50:18,805 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 20:50:18,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203248811] [2021-11-22 20:50:18,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1203248811] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 20:50:18,805 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:50:18,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-22 20:50:18,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569675571] [2021-11-22 20:50:18,805 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 20:50:18,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 20:50:18,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 20:50:18,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 20:50:18,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 20:50:18,806 INFO L87 Difference]: Start difference. First operand 1142 states and 1466 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:18,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:50:18,998 INFO L93 Difference]: Finished difference Result 2515 states and 3224 transitions. [2021-11-22 20:50:18,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 20:50:18,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2021-11-22 20:50:19,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:50:19,003 INFO L225 Difference]: With dead ends: 2515 [2021-11-22 20:50:19,003 INFO L226 Difference]: Without dead ends: 1461 [2021-11-22 20:50:19,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 20:50:19,005 INFO L933 BasicCegarLoop]: 1440 mSDtfsCounter, 2539 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2539 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 20:50:19,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2539 Valid, 2584 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 20:50:19,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2021-11-22 20:50:19,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1142. [2021-11-22 20:50:19,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1112 states have (on average 1.3156474820143884) internal successors, (1463), 1141 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:19,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1463 transitions. [2021-11-22 20:50:19,027 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1463 transitions. Word has length 53 [2021-11-22 20:50:19,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:50:19,027 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 1463 transitions. [2021-11-22 20:50:19,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:19,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1463 transitions. [2021-11-22 20:50:19,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-22 20:50:19,028 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:50:19,028 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] [2021-11-22 20:50:19,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-22 20:50:19,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-22 20:50:19,249 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:50:19,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:50:19,250 INFO L85 PathProgramCache]: Analyzing trace with hash 834729775, now seen corresponding path program 1 times [2021-11-22 20:50:19,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 20:50:19,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024319431] [2021-11-22 20:50:19,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:50:19,252 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 20:50:19,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-22 20:50:19,253 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 20:50:19,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-22 20:50:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:50:19,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-22 20:50:19,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:50:19,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:50:19,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 20:50:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:50:20,027 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 20:50:20,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024319431] [2021-11-22 20:50:20,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024319431] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 20:50:20,027 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:50:20,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-22 20:50:20,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848403214] [2021-11-22 20:50:20,028 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 20:50:20,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 20:50:20,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 20:50:20,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 20:50:20,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-22 20:50:20,029 INFO L87 Difference]: Start difference. First operand 1142 states and 1463 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:22,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:50:22,917 INFO L93 Difference]: Finished difference Result 3021 states and 3846 transitions. [2021-11-22 20:50:22,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 20:50:22,918 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 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 61 [2021-11-22 20:50:22,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:50:22,923 INFO L225 Difference]: With dead ends: 3021 [2021-11-22 20:50:22,924 INFO L226 Difference]: Without dead ends: 1935 [2021-11-22 20:50:22,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-22 20:50:22,927 INFO L933 BasicCegarLoop]: 1419 mSDtfsCounter, 5200 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5200 SdHoareTripleChecker+Valid, 3635 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-22 20:50:22,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5200 Valid, 3635 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-22 20:50:22,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1935 states. [2021-11-22 20:50:22,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1935 to 1142. [2021-11-22 20:50:22,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1112 states have (on average 1.3129496402877698) internal successors, (1460), 1141 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:22,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1460 transitions. [2021-11-22 20:50:22,967 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1460 transitions. Word has length 61 [2021-11-22 20:50:22,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:50:22,969 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 1460 transitions. [2021-11-22 20:50:22,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:22,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1460 transitions. [2021-11-22 20:50:22,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-22 20:50:22,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:50:22,970 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] [2021-11-22 20:50:22,997 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-22 20:50:23,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-22 20:50:23,175 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:50:23,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:50:23,176 INFO L85 PathProgramCache]: Analyzing trace with hash -2045544657, now seen corresponding path program 1 times [2021-11-22 20:50:23,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 20:50:23,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793935228] [2021-11-22 20:50:23,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:50:23,178 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 20:50:23,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-22 20:50:23,179 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 20:50:23,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-22 20:50:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:50:23,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-22 20:50:23,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:50:24,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:50:24,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 20:50:24,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:50:24,318 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 20:50:24,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793935228] [2021-11-22 20:50:24,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793935228] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 20:50:24,318 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:50:24,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-22 20:50:24,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386360349] [2021-11-22 20:50:24,318 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 20:50:24,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 20:50:24,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 20:50:24,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 20:50:24,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 20:50:24,319 INFO L87 Difference]: Start difference. First operand 1142 states and 1460 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:24,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:50:24,944 INFO L93 Difference]: Finished difference Result 3315 states and 4220 transitions. [2021-11-22 20:50:24,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 20:50:24,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2021-11-22 20:50:24,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:50:24,953 INFO L225 Difference]: With dead ends: 3315 [2021-11-22 20:50:24,953 INFO L226 Difference]: Without dead ends: 2260 [2021-11-22 20:50:24,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 20:50:24,958 INFO L933 BasicCegarLoop]: 1413 mSDtfsCounter, 5194 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5194 SdHoareTripleChecker+Valid, 3719 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-22 20:50:24,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5194 Valid, 3719 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-22 20:50:24,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2021-11-22 20:50:24,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 1142. [2021-11-22 20:50:24,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1112 states have (on average 1.310251798561151) internal successors, (1457), 1141 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:24,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1457 transitions. [2021-11-22 20:50:25,000 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1457 transitions. Word has length 77 [2021-11-22 20:50:25,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:50:25,000 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 1457 transitions. [2021-11-22 20:50:25,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:25,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1457 transitions. [2021-11-22 20:50:25,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-22 20:50:25,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:50:25,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:50:25,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-22 20:50:25,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-22 20:50:25,208 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:50:25,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:50:25,208 INFO L85 PathProgramCache]: Analyzing trace with hash 324665997, now seen corresponding path program 1 times [2021-11-22 20:50:25,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 20:50:25,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025201110] [2021-11-22 20:50:25,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:50:25,210 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 20:50:25,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-22 20:50:25,211 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 20:50:25,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-22 20:50:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:50:26,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 20:50:26,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:50:26,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:50:26,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 20:50:26,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:50:26,509 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 20:50:26,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025201110] [2021-11-22 20:50:26,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025201110] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 20:50:26,510 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:50:26,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-22 20:50:26,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52559131] [2021-11-22 20:50:26,510 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 20:50:26,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 20:50:26,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 20:50:26,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 20:50:26,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-22 20:50:26,511 INFO L87 Difference]: Start difference. First operand 1142 states and 1457 transitions. Second operand has 10 states, 10 states have (on average 13.9) internal successors, (139), 10 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:29,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:50:29,632 INFO L93 Difference]: Finished difference Result 4493 states and 5682 transitions. [2021-11-22 20:50:29,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 20:50:29,632 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.9) internal successors, (139), 10 states have internal predecessors, (139), 0 states have call successors, (0), 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 101 [2021-11-22 20:50:29,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:50:29,641 INFO L225 Difference]: With dead ends: 4493 [2021-11-22 20:50:29,641 INFO L226 Difference]: Without dead ends: 3422 [2021-11-22 20:50:29,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-11-22 20:50:29,644 INFO L933 BasicCegarLoop]: 1374 mSDtfsCounter, 13600 mSDsluCounter, 5305 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13600 SdHoareTripleChecker+Valid, 6679 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-22 20:50:29,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13600 Valid, 6679 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-22 20:50:29,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3422 states. [2021-11-22 20:50:29,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3422 to 1142. [2021-11-22 20:50:29,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1112 states have (on average 1.3075539568345325) internal successors, (1454), 1141 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:29,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1454 transitions. [2021-11-22 20:50:29,678 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1454 transitions. Word has length 101 [2021-11-22 20:50:29,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:50:29,679 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 1454 transitions. [2021-11-22 20:50:29,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.9) internal successors, (139), 10 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:29,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1454 transitions. [2021-11-22 20:50:29,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-22 20:50:29,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:50:29,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:50:29,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-22 20:50:29,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-22 20:50:29,908 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:50:29,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:50:29,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1191929715, now seen corresponding path program 1 times [2021-11-22 20:50:29,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 20:50:29,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778064475] [2021-11-22 20:50:29,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:50:29,910 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 20:50:29,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-22 20:50:29,911 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 20:50:29,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-22 20:50:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:50:31,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 1711 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 20:50:31,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:50:31,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:50:31,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 20:50:32,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:50:32,139 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 20:50:32,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [778064475] [2021-11-22 20:50:32,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [778064475] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 20:50:32,140 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:50:32,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-22 20:50:32,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701330067] [2021-11-22 20:50:32,140 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 20:50:32,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 20:50:32,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 20:50:32,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 20:50:32,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-22 20:50:32,141 INFO L87 Difference]: Start difference. First operand 1142 states and 1454 transitions. Second operand has 8 states, 8 states have (on average 15.0) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:50:36,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:50:38,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:50:41,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:50:43,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:50:45,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:50:47,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:50:49,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:50:51,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:50:53,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:50:57,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:50:58,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:50:59,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:01,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:05,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:07,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:08,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:12,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:16,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:18,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:21,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:24,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:27,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:31,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:32,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:36,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:38,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:41,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:42,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:45,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:47,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:50,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:54,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:56,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:51:59,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:02,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:04,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:07,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:10,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:11,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:18,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:21,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:22,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:24,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:27,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:31,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:33,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:35,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:37,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:40,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:44,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:46,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:49,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:51,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:55,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:57,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:52:57,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:52:57,617 INFO L93 Difference]: Finished difference Result 3132 states and 3984 transitions. [2021-11-22 20:52:57,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 20:52:57,620 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-22 20:52:57,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:52:57,627 INFO L225 Difference]: With dead ends: 3132 [2021-11-22 20:52:57,627 INFO L226 Difference]: Without dead ends: 2067 [2021-11-22 20:52:57,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-22 20:52:57,629 INFO L933 BasicCegarLoop]: 2039 mSDtfsCounter, 1150 mSDsluCounter, 7967 mSDsCounter, 0 mSdLazyCounter, 2426 mSolverCounterSat, 73 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 140.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 10006 SdHoareTripleChecker+Invalid, 2511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2426 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 144.9s IncrementalHoareTripleChecker+Time [2021-11-22 20:52:57,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1150 Valid, 10006 Invalid, 2511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2426 Invalid, 12 Unknown, 0 Unchecked, 144.9s Time] [2021-11-22 20:52:57,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2021-11-22 20:52:57,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 1154. [2021-11-22 20:52:57,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 1124 states have (on average 1.304270462633452) internal successors, (1466), 1153 states have internal predecessors, (1466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:52:57,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1466 transitions. [2021-11-22 20:52:57,694 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1466 transitions. Word has length 117 [2021-11-22 20:52:57,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:52:57,694 INFO L470 AbstractCegarLoop]: Abstraction has 1154 states and 1466 transitions. [2021-11-22 20:52:57,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:52:57,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1466 transitions. [2021-11-22 20:52:57,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-22 20:52:57,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:52:57,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:52:57,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-22 20:52:57,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-22 20:52:57,904 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-22 20:52:57,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:52:57,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1282844237, now seen corresponding path program 1 times [2021-11-22 20:52:57,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 20:52:57,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106553208] [2021-11-22 20:52:57,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:52:57,906 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 20:52:57,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-22 20:52:57,907 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 20:52:57,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-22 20:52:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:52:59,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1707 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 20:52:59,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:52:59,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:52:59,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 20:53:00,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:53:00,187 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 20:53:00,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106553208] [2021-11-22 20:53:00,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106553208] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 20:53:00,188 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:53:00,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-22 20:53:00,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151127077] [2021-11-22 20:53:00,188 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 20:53:00,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-22 20:53:00,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 20:53:00,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-22 20:53:00,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-22 20:53:00,189 INFO L87 Difference]: Start difference. First operand 1154 states and 1466 transitions. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:53:04,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:53:07,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:53:10,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:53:11,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:53:13,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:53:16,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:53:18,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:53:21,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:53:26,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:53:28,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:53:33,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:53:37,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:53:39,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:53:43,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15