/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:42:59,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:42:59,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:43:00,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:43:00,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:43:00,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:43:00,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:43:00,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:43:00,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:43:00,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:43:00,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:43:00,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:43:00,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:43:00,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:43:00,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:43:00,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:43:00,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:43:00,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:43:00,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:43:00,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:43:00,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:43:00,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:43:00,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:43:00,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:43:00,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:43:00,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:43:00,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:43:00,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:43:00,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:43:00,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:43:00,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:43:00,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:43:00,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:43:00,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:43:00,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:43:00,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:43:00,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:43:00,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:43:00,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:43:00,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:43:00,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:43:00,150 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:43:00,206 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:43:00,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:43:00,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:43:00,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:43:00,212 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:43:00,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:43:00,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:43:00,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:43:00,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:43:00,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:43:00,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:43:00,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:43:00,214 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:43:00,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:43:00,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:43:00,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:43:00,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:43:00,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:43:00,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:43:00,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:43:00,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:43:00,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:43:00,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:43:00,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:43:00,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:43:00,217 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:43:00,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:43:00,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:43:00,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:43:00,724 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:43:00,725 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:43:00,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2020-12-22 11:43:00,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9947ecd93/389ec313c6304ccba34d8b5e131c13ab/FLAGb3dc79c9a [2020-12-22 11:43:02,181 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:43:02,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2020-12-22 11:43:02,260 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9947ecd93/389ec313c6304ccba34d8b5e131c13ab/FLAGb3dc79c9a [2020-12-22 11:43:02,472 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9947ecd93/389ec313c6304ccba34d8b5e131c13ab [2020-12-22 11:43:02,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:43:02,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:43:02,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:43:02,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:43:02,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:43:02,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:43:02" (1/1) ... [2020-12-22 11:43:02,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc7b650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:43:02, skipping insertion in model container [2020-12-22 11:43:02,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:43:02" (1/1) ... [2020-12-22 11:43:02,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:43:02,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:43:03,149 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2020-12-22 11:43:03,162 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2020-12-22 11:43:03,201 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-22 11:43:03,211 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-22 11:43:05,495 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:05,496 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:05,498 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:05,500 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:05,503 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:05,539 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:05,541 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:05,548 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:05,551 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:05,553 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:05,555 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:05,556 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:05,556 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:06,321 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-22 11:43:06,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-22 11:43:06,324 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-22 11:43:06,325 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-22 11:43:06,327 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-22 11:43:06,328 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-22 11:43:06,329 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-22 11:43:06,330 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-22 11:43:06,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-22 11:43:06,332 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-22 11:43:06,678 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-22 11:43:07,332 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,333 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,388 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,394 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,408 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,409 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,446 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,461 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,462 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,463 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,463 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,469 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,470 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:43:07,636 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:43:07,669 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2020-12-22 11:43:07,670 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2020-12-22 11:43:07,678 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-22 11:43:07,679 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-22 11:43:07,751 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,752 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,752 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,753 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,754 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,772 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,772 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,773 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,774 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,776 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,777 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,777 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,778 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:07,897 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-22 11:43:07,905 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-22 11:43:07,906 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-22 11:43:07,906 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-22 11:43:07,907 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-22 11:43:07,908 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-22 11:43:07,908 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-22 11:43:07,910 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-22 11:43:07,910 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-22 11:43:07,911 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-22 11:43:07,989 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-22 11:43:08,138 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:08,139 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:08,150 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:08,152 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:08,156 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:08,157 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:08,181 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:08,182 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:08,183 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:08,183 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:08,184 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:08,184 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:08,185 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:43:08,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:43:09,187 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:43:09,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:43:09 WrapperNode [2020-12-22 11:43:09,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:43:09,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:43:09,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:43:09,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:43:09,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:43:09" (1/1) ... [2020-12-22 11:43:09,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:43:09" (1/1) ... [2020-12-22 11:43:09,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:43:09,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:43:09,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:43:09,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:43:09,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:43:09" (1/1) ... [2020-12-22 11:43:09,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:43:09" (1/1) ... [2020-12-22 11:43:09,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:43:09" (1/1) ... [2020-12-22 11:43:09,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:43:09" (1/1) ... [2020-12-22 11:43:09,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:43:09" (1/1) ... [2020-12-22 11:43:09,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:43:09" (1/1) ... [2020-12-22 11:43:09,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:43:09" (1/1) ... [2020-12-22 11:43:09,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:43:09,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:43:09,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:43:09,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:43:09,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:43:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:43:09,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-22 11:43:09,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 11:43:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 11:43:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 11:43:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:43:09,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:43:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2020-12-22 11:43:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:43:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2020-12-22 11:43:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 11:43:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:43:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:43:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-22 11:43:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-22 11:43:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 11:43:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:43:21,671 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !true; [2020-12-22 11:43:21,671 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##276: assume !true; [2020-12-22 11:43:21,672 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume !true; [2020-12-22 11:43:21,672 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !true; [2020-12-22 11:43:21,672 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##156: assume !true; [2020-12-22 11:43:21,673 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##327: assume !true; [2020-12-22 11:43:21,673 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##103: assume !true; [2020-12-22 11:43:21,710 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:43:21,710 INFO L299 CfgBuilder]: Removed 384 assume(true) statements. [2020-12-22 11:43:21,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:43:21 BoogieIcfgContainer [2020-12-22 11:43:21,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:43:21,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:43:21,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:43:21,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:43:21,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:43:02" (1/3) ... [2020-12-22 11:43:21,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6290f8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:43:21, skipping insertion in model container [2020-12-22 11:43:21,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:43:09" (2/3) ... [2020-12-22 11:43:21,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6290f8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:43:21, skipping insertion in model container [2020-12-22 11:43:21,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:43:21" (3/3) ... [2020-12-22 11:43:21,728 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_create_harness.i [2020-12-22 11:43:21,736 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:43:21,744 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2020-12-22 11:43:21,770 INFO L253 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2020-12-22 11:43:21,831 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:43:21,831 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:43:21,831 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:43:21,831 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:43:21,831 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:43:21,832 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:43:21,832 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:43:21,832 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:43:21,884 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2020-12-22 11:43:21,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 11:43:21,894 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:43:21,896 INFO L422 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] [2020-12-22 11:43:21,897 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:43:21,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:43:21,906 INFO L82 PathProgramCache]: Analyzing trace with hash -714573874, now seen corresponding path program 1 times [2020-12-22 11:43:21,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:43:21,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441781591] [2020-12-22 11:43:21,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:43:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:43:22,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:43:22,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441781591] [2020-12-22 11:43:22,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:43:22,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:43:22,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518952727] [2020-12-22 11:43:22,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:43:22,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:43:22,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:43:22,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:43:22,973 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 2 states. [2020-12-22 11:43:23,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:43:23,088 INFO L93 Difference]: Finished difference Result 814 states and 1111 transitions. [2020-12-22 11:43:23,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:43:23,090 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 47 [2020-12-22 11:43:23,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:43:23,109 INFO L225 Difference]: With dead ends: 814 [2020-12-22 11:43:23,109 INFO L226 Difference]: Without dead ends: 401 [2020-12-22 11:43:23,122 INFO L677 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 [2020-12-22 11:43:23,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-12-22 11:43:23,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2020-12-22 11:43:23,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-12-22 11:43:23,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 487 transitions. [2020-12-22 11:43:23,232 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 487 transitions. Word has length 47 [2020-12-22 11:43:23,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:43:23,233 INFO L481 AbstractCegarLoop]: Abstraction has 401 states and 487 transitions. [2020-12-22 11:43:23,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:43:23,233 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 487 transitions. [2020-12-22 11:43:23,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 11:43:23,235 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:43:23,236 INFO L422 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] [2020-12-22 11:43:23,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:43:23,236 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:43:23,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:43:23,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1373789074, now seen corresponding path program 1 times [2020-12-22 11:43:23,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:43:23,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701160158] [2020-12-22 11:43:23,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:43:23,385 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:43:23,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [668853960] [2020-12-22 11:43:23,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:43:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:43:24,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 2552 conjuncts, 37 conjunts are in the unsatisfiable core [2020-12-22 11:43:24,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:43:25,152 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:43:25,164 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:43:25,173 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:43:25,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:43:25,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701160158] [2020-12-22 11:43:25,191 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:43:25,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668853960] [2020-12-22 11:43:25,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:43:25,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:43:25,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613852558] [2020-12-22 11:43:25,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:43:25,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:43:25,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:43:25,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:43:25,196 INFO L87 Difference]: Start difference. First operand 401 states and 487 transitions. Second operand 4 states. [2020-12-22 11:43:25,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:43:25,651 INFO L93 Difference]: Finished difference Result 455 states and 554 transitions. [2020-12-22 11:43:25,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:43:25,653 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-12-22 11:43:25,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:43:25,663 INFO L225 Difference]: With dead ends: 455 [2020-12-22 11:43:25,663 INFO L226 Difference]: Without dead ends: 453 [2020-12-22 11:43:25,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:43:25,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-12-22 11:43:25,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 399. [2020-12-22 11:43:25,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2020-12-22 11:43:25,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 485 transitions. [2020-12-22 11:43:25,698 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 485 transitions. Word has length 47 [2020-12-22 11:43:25,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:43:25,699 INFO L481 AbstractCegarLoop]: Abstraction has 399 states and 485 transitions. [2020-12-22 11:43:25,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:43:25,699 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 485 transitions. [2020-12-22 11:43:25,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 11:43:25,701 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:43:25,701 INFO L422 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] [2020-12-22 11:43:25,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-22 11:43:25,916 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:43:25,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:43:25,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1086033967, now seen corresponding path program 1 times [2020-12-22 11:43:25,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:43:25,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219936069] [2020-12-22 11:43:25,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:43:26,185 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:43:26,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1927559021] [2020-12-22 11:43:26,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:43:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:43:27,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 2577 conjuncts, 20 conjunts are in the unsatisfiable core [2020-12-22 11:43:27,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:43:27,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:43:27,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219936069] [2020-12-22 11:43:27,773 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:43:27,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927559021] [2020-12-22 11:43:27,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:43:27,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:43:27,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005984424] [2020-12-22 11:43:27,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:43:27,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:43:27,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:43:27,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:43:27,778 INFO L87 Difference]: Start difference. First operand 399 states and 485 transitions. Second operand 6 states. [2020-12-22 11:43:28,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:43:28,240 INFO L93 Difference]: Finished difference Result 878 states and 1060 transitions. [2020-12-22 11:43:28,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:43:28,241 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-12-22 11:43:28,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:43:28,244 INFO L225 Difference]: With dead ends: 878 [2020-12-22 11:43:28,245 INFO L226 Difference]: Without dead ends: 514 [2020-12-22 11:43:28,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:43:28,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-12-22 11:43:28,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 399. [2020-12-22 11:43:28,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2020-12-22 11:43:28,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 484 transitions. [2020-12-22 11:43:28,265 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 484 transitions. Word has length 54 [2020-12-22 11:43:28,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:43:28,267 INFO L481 AbstractCegarLoop]: Abstraction has 399 states and 484 transitions. [2020-12-22 11:43:28,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:43:28,272 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 484 transitions. [2020-12-22 11:43:28,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 11:43:28,280 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:43:28,281 INFO L422 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] [2020-12-22 11:43:28,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:43:28,482 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:43:28,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:43:28,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1801845482, now seen corresponding path program 1 times [2020-12-22 11:43:28,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:43:28,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172467270] [2020-12-22 11:43:28,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:43:28,610 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:43:28,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1660913036] [2020-12-22 11:43:28,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:43:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:43:29,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 2598 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-22 11:43:30,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:43:30,100 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:43:30,183 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:43:30,186 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:43:30,188 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 11:43:30,250 INFO L382 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 16 treesize of output 8 [2020-12-22 11:43:30,255 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:43:30,261 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2020-12-22 11:43:30,265 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:43:30,291 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:43:30,300 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2020-12-22 11:43:30,303 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:43:30,308 INFO L382 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 16 treesize of output 8 [2020-12-22 11:43:30,310 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-22 11:43:30,318 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:43:30,319 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-22 11:43:30,320 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:47, output treesize:9 [2020-12-22 11:43:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:43:30,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172467270] [2020-12-22 11:43:30,377 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:43:30,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660913036] [2020-12-22 11:43:30,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:43:30,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:43:30,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991267372] [2020-12-22 11:43:30,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:43:30,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:43:30,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:43:30,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:43:30,380 INFO L87 Difference]: Start difference. First operand 399 states and 484 transitions. Second operand 5 states. [2020-12-22 11:43:38,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:43:38,048 INFO L93 Difference]: Finished difference Result 1121 states and 1356 transitions. [2020-12-22 11:43:38,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:43:38,058 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2020-12-22 11:43:38,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:43:38,063 INFO L225 Difference]: With dead ends: 1121 [2020-12-22 11:43:38,063 INFO L226 Difference]: Without dead ends: 756 [2020-12-22 11:43:38,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:43:38,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-12-22 11:43:38,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 405. [2020-12-22 11:43:38,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-12-22 11:43:38,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 491 transitions. [2020-12-22 11:43:38,089 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 491 transitions. Word has length 56 [2020-12-22 11:43:38,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:43:38,091 INFO L481 AbstractCegarLoop]: Abstraction has 405 states and 491 transitions. [2020-12-22 11:43:38,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:43:38,092 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 491 transitions. [2020-12-22 11:43:38,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 11:43:38,096 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:43:38,097 INFO L422 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] [2020-12-22 11:43:38,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:43:38,314 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:43:38,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:43:38,316 INFO L82 PathProgramCache]: Analyzing trace with hash 2098755028, now seen corresponding path program 1 times [2020-12-22 11:43:38,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:43:38,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888757875] [2020-12-22 11:43:38,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:43:38,510 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:43:38,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [563577618] [2020-12-22 11:43:38,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:43:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:43:39,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 2593 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 11:43:39,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:43:40,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:43:40,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888757875] [2020-12-22 11:43:40,049 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:43:40,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563577618] [2020-12-22 11:43:40,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:43:40,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:43:40,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256108730] [2020-12-22 11:43:40,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:43:40,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:43:40,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:43:40,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:43:40,061 INFO L87 Difference]: Start difference. First operand 405 states and 491 transitions. Second operand 4 states. [2020-12-22 11:43:40,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:43:40,145 INFO L93 Difference]: Finished difference Result 775 states and 940 transitions. [2020-12-22 11:43:40,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:43:40,147 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-12-22 11:43:40,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:43:40,149 INFO L225 Difference]: With dead ends: 775 [2020-12-22 11:43:40,149 INFO L226 Difference]: Without dead ends: 403 [2020-12-22 11:43:40,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:43:40,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-12-22 11:43:40,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 401. [2020-12-22 11:43:40,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-12-22 11:43:40,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 483 transitions. [2020-12-22 11:43:40,164 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 483 transitions. Word has length 56 [2020-12-22 11:43:40,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:43:40,165 INFO L481 AbstractCegarLoop]: Abstraction has 401 states and 483 transitions. [2020-12-22 11:43:40,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:43:40,165 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 483 transitions. [2020-12-22 11:43:40,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 11:43:40,166 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:43:40,166 INFO L422 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] [2020-12-22 11:43:40,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:43:40,380 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:43:40,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:43:40,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1367892291, now seen corresponding path program 1 times [2020-12-22 11:43:40,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:43:40,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925052134] [2020-12-22 11:43:40,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:43:40,502 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:43:40,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [697337414] [2020-12-22 11:43:40,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:43:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:43:41,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 2623 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-22 11:43:41,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:43:41,947 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:43:41,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:43:41,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925052134] [2020-12-22 11:43:41,998 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:43:41,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697337414] [2020-12-22 11:43:41,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:43:41,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:43:41,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145620593] [2020-12-22 11:43:41,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:43:41,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:43:42,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:43:42,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:43:42,000 INFO L87 Difference]: Start difference. First operand 401 states and 483 transitions. Second operand 4 states. [2020-12-22 11:43:42,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:43:42,286 INFO L93 Difference]: Finished difference Result 944 states and 1137 transitions. [2020-12-22 11:43:42,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:43:42,287 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-12-22 11:43:42,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:43:42,291 INFO L225 Difference]: With dead ends: 944 [2020-12-22 11:43:42,291 INFO L226 Difference]: Without dead ends: 565 [2020-12-22 11:43:42,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:43:42,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-12-22 11:43:42,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 401. [2020-12-22 11:43:42,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-12-22 11:43:42,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 481 transitions. [2020-12-22 11:43:42,310 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 481 transitions. Word has length 57 [2020-12-22 11:43:42,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:43:42,310 INFO L481 AbstractCegarLoop]: Abstraction has 401 states and 481 transitions. [2020-12-22 11:43:42,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:43:42,310 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 481 transitions. [2020-12-22 11:43:42,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-22 11:43:42,312 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:43:42,312 INFO L422 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] [2020-12-22 11:43:42,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 11:43:42,527 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:43:42,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:43:42,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1786485650, now seen corresponding path program 1 times [2020-12-22 11:43:42,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:43:42,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208269934] [2020-12-22 11:43:42,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:43:42,670 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:43:42,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1851137327] [2020-12-22 11:43:42,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:43:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:43:44,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 2696 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-22 11:43:44,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:43:44,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:43:44,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208269934] [2020-12-22 11:43:44,311 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:43:44,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851137327] [2020-12-22 11:43:44,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:43:44,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:43:44,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97520503] [2020-12-22 11:43:44,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:43:44,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:43:44,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:43:44,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:43:44,314 INFO L87 Difference]: Start difference. First operand 401 states and 481 transitions. Second operand 5 states. [2020-12-22 11:43:45,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:43:45,454 INFO L93 Difference]: Finished difference Result 1055 states and 1275 transitions. [2020-12-22 11:43:45,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:43:45,455 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2020-12-22 11:43:45,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:43:45,460 INFO L225 Difference]: With dead ends: 1055 [2020-12-22 11:43:45,460 INFO L226 Difference]: Without dead ends: 698 [2020-12-22 11:43:45,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:43:45,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2020-12-22 11:43:45,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 401. [2020-12-22 11:43:45,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-12-22 11:43:45,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 476 transitions. [2020-12-22 11:43:45,478 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 476 transitions. Word has length 62 [2020-12-22 11:43:45,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:43:45,479 INFO L481 AbstractCegarLoop]: Abstraction has 401 states and 476 transitions. [2020-12-22 11:43:45,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:43:45,479 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 476 transitions. [2020-12-22 11:43:45,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-22 11:43:45,480 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:43:45,480 INFO L422 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] [2020-12-22 11:43:45,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:43:45,696 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:43:45,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:43:45,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1039905759, now seen corresponding path program 1 times [2020-12-22 11:43:45,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:43:45,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452234742] [2020-12-22 11:43:45,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:43:45,842 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:43:45,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [288497650] [2020-12-22 11:43:45,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:14,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 2721 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-22 11:45:14,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:14,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:14,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452234742] [2020-12-22 11:45:14,856 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:14,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288497650] [2020-12-22 11:45:14,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:14,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:45:14,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645823911] [2020-12-22 11:45:14,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:45:14,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:14,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:45:14,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:14,858 INFO L87 Difference]: Start difference. First operand 401 states and 476 transitions. Second operand 5 states. [2020-12-22 11:45:15,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:15,643 INFO L93 Difference]: Finished difference Result 1068 states and 1297 transitions. [2020-12-22 11:45:15,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:45:15,644 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2020-12-22 11:45:15,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:15,651 INFO L225 Difference]: With dead ends: 1068 [2020-12-22 11:45:15,651 INFO L226 Difference]: Without dead ends: 1066 [2020-12-22 11:45:15,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:45:15,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-12-22 11:45:15,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 403. [2020-12-22 11:45:15,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2020-12-22 11:45:15,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 478 transitions. [2020-12-22 11:45:15,671 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 478 transitions. Word has length 63 [2020-12-22 11:45:15,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:15,671 INFO L481 AbstractCegarLoop]: Abstraction has 403 states and 478 transitions. [2020-12-22 11:45:15,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:45:15,672 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 478 transitions. [2020-12-22 11:45:15,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-22 11:45:15,672 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:15,673 INFO L422 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] [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forcibly destroying the process [2020-12-22 11:45:15,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:15,887 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:15,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:15,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1039846177, now seen corresponding path program 1 times [2020-12-22 11:45:15,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:15,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305113026] [2020-12-22 11:45:15,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:16,029 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:16,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [523171922] [2020-12-22 11:45:16,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:17,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 2718 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-22 11:45:17,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:17,513 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 11:45:17,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:17,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305113026] [2020-12-22 11:45:17,537 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:17,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523171922] [2020-12-22 11:45:17,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:17,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:45:17,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867018961] [2020-12-22 11:45:17,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:45:17,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:17,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:45:17,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:17,539 INFO L87 Difference]: Start difference. First operand 403 states and 478 transitions. Second operand 5 states. [2020-12-22 11:45:18,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:18,427 INFO L93 Difference]: Finished difference Result 1065 states and 1294 transitions. [2020-12-22 11:45:18,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:45:18,428 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2020-12-22 11:45:18,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:18,434 INFO L225 Difference]: With dead ends: 1065 [2020-12-22 11:45:18,434 INFO L226 Difference]: Without dead ends: 1063 [2020-12-22 11:45:18,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:45:18,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2020-12-22 11:45:18,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 399. [2020-12-22 11:45:18,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2020-12-22 11:45:18,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 474 transitions. [2020-12-22 11:45:18,454 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 474 transitions. Word has length 63 [2020-12-22 11:45:18,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:18,455 INFO L481 AbstractCegarLoop]: Abstraction has 399 states and 474 transitions. [2020-12-22 11:45:18,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:45:18,455 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 474 transitions. [2020-12-22 11:45:18,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 11:45:18,456 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:18,456 INFO L422 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] [2020-12-22 11:45:18,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-12-22 11:45:18,672 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:18,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:18,674 INFO L82 PathProgramCache]: Analyzing trace with hash -967128980, now seen corresponding path program 1 times [2020-12-22 11:45:18,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:18,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405274322] [2020-12-22 11:45:18,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:18,838 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:18,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [750765007] [2020-12-22 11:45:18,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:20,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 2896 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-22 11:45:20,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:20,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:20,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405274322] [2020-12-22 11:45:20,471 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:20,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750765007] [2020-12-22 11:45:20,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:20,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:45:20,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924408806] [2020-12-22 11:45:20,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:45:20,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:20,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:45:20,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:45:20,474 INFO L87 Difference]: Start difference. First operand 399 states and 474 transitions. Second operand 6 states. [2020-12-22 11:45:21,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:21,327 INFO L93 Difference]: Finished difference Result 1077 states and 1291 transitions. [2020-12-22 11:45:21,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:45:21,328 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-12-22 11:45:21,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:21,331 INFO L225 Difference]: With dead ends: 1077 [2020-12-22 11:45:21,331 INFO L226 Difference]: Without dead ends: 747 [2020-12-22 11:45:21,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-12-22 11:45:21,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2020-12-22 11:45:21,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 417. [2020-12-22 11:45:21,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-12-22 11:45:21,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 494 transitions. [2020-12-22 11:45:21,354 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 494 transitions. Word has length 69 [2020-12-22 11:45:21,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:21,355 INFO L481 AbstractCegarLoop]: Abstraction has 417 states and 494 transitions. [2020-12-22 11:45:21,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:45:21,355 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 494 transitions. [2020-12-22 11:45:21,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 11:45:21,356 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:21,356 INFO L422 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] [2020-12-22 11:45:21,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:21,570 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:21,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:21,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1978246230, now seen corresponding path program 1 times [2020-12-22 11:45:21,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:21,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159999051] [2020-12-22 11:45:21,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:21,669 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:21,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1812781798] [2020-12-22 11:45:21,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:23,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 2889 conjuncts, 37 conjunts are in the unsatisfiable core [2020-12-22 11:45:23,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:23,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:23,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159999051] [2020-12-22 11:45:23,315 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:23,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812781798] [2020-12-22 11:45:23,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:23,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 11:45:23,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290502101] [2020-12-22 11:45:23,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:45:23,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:23,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:45:23,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:45:23,318 INFO L87 Difference]: Start difference. First operand 417 states and 494 transitions. Second operand 7 states. [2020-12-22 11:45:24,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:24,029 INFO L93 Difference]: Finished difference Result 1260 states and 1522 transitions. [2020-12-22 11:45:24,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:45:24,032 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-12-22 11:45:24,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:24,039 INFO L225 Difference]: With dead ends: 1260 [2020-12-22 11:45:24,039 INFO L226 Difference]: Without dead ends: 942 [2020-12-22 11:45:24,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-12-22 11:45:24,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2020-12-22 11:45:24,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 431. [2020-12-22 11:45:24,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2020-12-22 11:45:24,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 512 transitions. [2020-12-22 11:45:24,078 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 512 transitions. Word has length 69 [2020-12-22 11:45:24,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:24,079 INFO L481 AbstractCegarLoop]: Abstraction has 431 states and 512 transitions. [2020-12-22 11:45:24,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:45:24,079 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 512 transitions. [2020-12-22 11:45:24,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 11:45:24,080 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:24,080 INFO L422 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] [2020-12-22 11:45:24,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:24,295 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:24,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:24,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1858283405, now seen corresponding path program 1 times [2020-12-22 11:45:24,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:24,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999967157] [2020-12-22 11:45:24,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:24,395 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:24,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237946438] [2020-12-22 11:45:24,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:25,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 2873 conjuncts, 45 conjunts are in the unsatisfiable core [2020-12-22 11:45:25,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:25,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:25,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999967157] [2020-12-22 11:45:25,838 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:25,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237946438] [2020-12-22 11:45:25,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:25,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:45:25,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173266677] [2020-12-22 11:45:25,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:45:25,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:25,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:45:25,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:25,840 INFO L87 Difference]: Start difference. First operand 431 states and 512 transitions. Second operand 5 states. [2020-12-22 11:45:26,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:26,514 INFO L93 Difference]: Finished difference Result 1161 states and 1387 transitions. [2020-12-22 11:45:26,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:45:26,515 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2020-12-22 11:45:26,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:26,519 INFO L225 Difference]: With dead ends: 1161 [2020-12-22 11:45:26,519 INFO L226 Difference]: Without dead ends: 882 [2020-12-22 11:45:26,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:45:26,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2020-12-22 11:45:26,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 431. [2020-12-22 11:45:26,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2020-12-22 11:45:26,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 510 transitions. [2020-12-22 11:45:26,550 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 510 transitions. Word has length 71 [2020-12-22 11:45:26,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:26,551 INFO L481 AbstractCegarLoop]: Abstraction has 431 states and 510 transitions. [2020-12-22 11:45:26,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:45:26,551 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 510 transitions. [2020-12-22 11:45:26,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 11:45:26,552 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:26,552 INFO L422 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] [2020-12-22 11:45:26,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-22 11:45:26,766 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:26,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:26,767 INFO L82 PathProgramCache]: Analyzing trace with hash -847759674, now seen corresponding path program 1 times [2020-12-22 11:45:26,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:26,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907464011] [2020-12-22 11:45:26,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:26,881 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:26,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1652156676] [2020-12-22 11:45:26,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:28,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 2798 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 11:45:28,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:28,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:28,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907464011] [2020-12-22 11:45:28,355 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:28,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652156676] [2020-12-22 11:45:28,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:28,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:45:28,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379695190] [2020-12-22 11:45:28,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:45:28,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:28,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:45:28,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:45:28,357 INFO L87 Difference]: Start difference. First operand 431 states and 510 transitions. Second operand 4 states. [2020-12-22 11:45:28,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:28,457 INFO L93 Difference]: Finished difference Result 768 states and 911 transitions. [2020-12-22 11:45:28,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:45:28,458 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2020-12-22 11:45:28,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:28,462 INFO L225 Difference]: With dead ends: 768 [2020-12-22 11:45:28,462 INFO L226 Difference]: Without dead ends: 719 [2020-12-22 11:45:28,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:28,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-12-22 11:45:28,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 433. [2020-12-22 11:45:28,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-12-22 11:45:28,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 512 transitions. [2020-12-22 11:45:28,498 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 512 transitions. Word has length 72 [2020-12-22 11:45:28,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:28,498 INFO L481 AbstractCegarLoop]: Abstraction has 433 states and 512 transitions. [2020-12-22 11:45:28,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:45:28,499 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 512 transitions. [2020-12-22 11:45:28,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 11:45:28,499 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:28,500 INFO L422 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] [2020-12-22 11:45:28,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-22 11:45:28,714 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:28,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:28,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1770425789, now seen corresponding path program 1 times [2020-12-22 11:45:28,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:28,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788708798] [2020-12-22 11:45:28,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:28,827 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:28,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [376391107] [2020-12-22 11:45:28,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true