/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_byte_buf_advance_harness.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:40:12,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:40:12,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:40:12,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:40:12,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:40:12,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:40:12,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:40:12,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:40:12,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:40:12,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:40:12,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:40:12,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:40:12,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:40:12,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:40:12,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:40:12,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:40:12,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:40:12,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:40:12,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:40:12,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:40:12,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:40:12,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:40:13,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:40:13,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:40:13,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:40:13,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:40:13,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:40:13,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:40:13,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:40:13,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:40:13,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:40:13,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:40:13,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:40:13,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:40:13,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:40:13,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:40:13,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:40:13,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:40:13,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:40:13,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:40:13,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:40:13,023 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:40:13,050 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:40:13,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:40:13,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:40:13,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:40:13,052 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:40:13,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:40:13,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:40:13,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:40:13,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:40:13,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:40:13,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:40:13,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:40:13,054 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:40:13,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:40:13,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:40:13,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:40:13,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:40:13,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:40:13,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:40:13,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:40:13,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:40:13,056 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:40:13,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:40:13,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:40:13,056 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:40:13,056 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:40:13,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:40:13,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:40:13,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:40:13,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:40:13,477 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:40:13,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i [2020-12-22 11:40:13,573 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09a6a5ebf/134c36bcbeda46e3b336a9d597bb5a22/FLAGcc38d7b61 [2020-12-22 11:40:14,757 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:40:14,758 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i [2020-12-22 11:40:14,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09a6a5ebf/134c36bcbeda46e3b336a9d597bb5a22/FLAGcc38d7b61 [2020-12-22 11:40:15,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09a6a5ebf/134c36bcbeda46e3b336a9d597bb5a22 [2020-12-22 11:40:15,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:40:15,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:40:15,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:40:15,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:40:15,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:40:15,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:40:15" (1/1) ... [2020-12-22 11:40:15,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a1c91de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:15, skipping insertion in model container [2020-12-22 11:40:15,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:40:15" (1/1) ... [2020-12-22 11:40:15,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:40:15,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:40:15,645 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_byte_buf_advance_harness.i[4494,4507] [2020-12-22 11:40:15,656 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_byte_buf_advance_harness.i[4554,4567] [2020-12-22 11:40:15,692 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-22 11:40:15,704 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-22 11:40:16,822 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:16,823 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:16,823 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:16,824 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:16,826 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:16,851 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:16,854 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:16,856 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:16,857 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:17,391 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-22 11:40:17,394 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-22 11:40:17,397 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-22 11:40:17,400 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-22 11:40:17,409 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-22 11:40:17,415 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-22 11:40:17,417 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-22 11:40:17,418 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-22 11:40:17,419 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-22 11:40:17,420 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-22 11:40:17,592 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-22 11:40:17,759 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:17,760 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:17,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:40:17,960 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:40:17,977 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_byte_buf_advance_harness.i[4494,4507] [2020-12-22 11:40:17,978 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_byte_buf_advance_harness.i[4554,4567] [2020-12-22 11:40:17,980 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-22 11:40:17,981 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-22 11:40:18,026 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:18,026 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:18,027 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:18,028 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:18,028 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:18,036 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:18,037 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:18,038 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:18,039 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:18,081 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-22 11:40:18,082 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-22 11:40:18,083 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-22 11:40:18,084 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-22 11:40:18,085 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-22 11:40:18,086 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-22 11:40:18,087 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-22 11:40:18,088 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-22 11:40:18,088 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-22 11:40:18,089 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-22 11:40:18,116 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-22 11:40:18,254 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:18,258 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:18,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:40:19,209 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:40:19,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:19 WrapperNode [2020-12-22 11:40:19,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:40:19,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:40:19,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:40:19,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:40:19,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:19" (1/1) ... [2020-12-22 11:40:19,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:19" (1/1) ... [2020-12-22 11:40:19,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:40:19,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:40:19,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:40:19,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:40:19,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:19" (1/1) ... [2020-12-22 11:40:19,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:19" (1/1) ... [2020-12-22 11:40:19,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:19" (1/1) ... [2020-12-22 11:40:19,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:19" (1/1) ... [2020-12-22 11:40:19,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:19" (1/1) ... [2020-12-22 11:40:19,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:19" (1/1) ... [2020-12-22 11:40:19,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:19" (1/1) ... [2020-12-22 11:40:19,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:40:19,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:40:19,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:40:19,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:40:19,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:19" (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 11:40:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:40:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 11:40:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 11:40:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 11:40:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:40:19,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:40:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:40:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 11:40:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 11:40:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:40:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:40:31,150 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:40:31,151 INFO L299 CfgBuilder]: Removed 139 assume(true) statements. [2020-12-22 11:40:31,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:40:31 BoogieIcfgContainer [2020-12-22 11:40:31,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:40:31,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:40:31,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:40:31,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:40:31,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:40:15" (1/3) ... [2020-12-22 11:40:31,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70bb3728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:40:31, skipping insertion in model container [2020-12-22 11:40:31,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:19" (2/3) ... [2020-12-22 11:40:31,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70bb3728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:40:31, skipping insertion in model container [2020-12-22 11:40:31,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:40:31" (3/3) ... [2020-12-22 11:40:31,163 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_advance_harness.i [2020-12-22 11:40:31,170 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:40:31,177 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 23 error locations. [2020-12-22 11:40:31,198 INFO L253 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2020-12-22 11:40:31,230 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:40:31,231 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:40:31,231 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:40:31,231 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:40:31,231 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:40:31,231 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:40:31,231 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:40:31,232 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:40:31,260 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states. [2020-12-22 11:40:31,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-22 11:40:31,270 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:31,271 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] [2020-12-22 11:40:31,272 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.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:40:31,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:31,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1060108463, now seen corresponding path program 1 times [2020-12-22 11:40:31,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:31,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787832271] [2020-12-22 11:40:31,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:32,293 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 11:40:32,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787832271] [2020-12-22 11:40:32,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:32,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:40:32,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904617630] [2020-12-22 11:40:32,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:40:32,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:32,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:40:32,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:40:32,342 INFO L87 Difference]: Start difference. First operand 329 states. Second operand 2 states. [2020-12-22 11:40:32,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:40:32,424 INFO L93 Difference]: Finished difference Result 654 states and 907 transitions. [2020-12-22 11:40:32,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:40:32,426 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 40 [2020-12-22 11:40:32,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:40:32,441 INFO L225 Difference]: With dead ends: 654 [2020-12-22 11:40:32,441 INFO L226 Difference]: Without dead ends: 324 [2020-12-22 11:40:32,446 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 11:40:32,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-12-22 11:40:32,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2020-12-22 11:40:32,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-12-22 11:40:32,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 414 transitions. [2020-12-22 11:40:32,517 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 414 transitions. Word has length 40 [2020-12-22 11:40:32,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:40:32,518 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 414 transitions. [2020-12-22 11:40:32,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:40:32,518 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 414 transitions. [2020-12-22 11:40:32,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-22 11:40:32,521 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:32,521 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] [2020-12-22 11:40:32,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:40:32,522 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.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:40:32,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:32,523 INFO L82 PathProgramCache]: Analyzing trace with hash 187425810, now seen corresponding path program 1 times [2020-12-22 11:40:32,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:32,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721750425] [2020-12-22 11:40:32,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:32,962 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 11:40:32,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721750425] [2020-12-22 11:40:32,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:32,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:40:32,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263122636] [2020-12-22 11:40:32,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:40:32,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:32,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:40:32,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:40:32,967 INFO L87 Difference]: Start difference. First operand 324 states and 414 transitions. Second operand 4 states. [2020-12-22 11:40:33,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:40:33,323 INFO L93 Difference]: Finished difference Result 622 states and 794 transitions. [2020-12-22 11:40:33,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:40:33,323 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-12-22 11:40:33,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:40:33,326 INFO L225 Difference]: With dead ends: 622 [2020-12-22 11:40:33,327 INFO L226 Difference]: Without dead ends: 324 [2020-12-22 11:40:33,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:40:33,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-12-22 11:40:33,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2020-12-22 11:40:33,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-12-22 11:40:33,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 411 transitions. [2020-12-22 11:40:33,369 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 411 transitions. Word has length 42 [2020-12-22 11:40:33,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:40:33,370 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 411 transitions. [2020-12-22 11:40:33,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:40:33,370 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 411 transitions. [2020-12-22 11:40:33,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 11:40:33,375 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:33,375 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 11:40:33,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:40:33,379 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.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:40:33,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:33,380 INFO L82 PathProgramCache]: Analyzing trace with hash -646967702, now seen corresponding path program 1 times [2020-12-22 11:40:33,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:33,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569686860] [2020-12-22 11:40:33,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:33,832 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 11:40:33,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569686860] [2020-12-22 11:40:33,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:33,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:40:33,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630950015] [2020-12-22 11:40:33,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:40:33,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:33,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:40:33,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:40:33,840 INFO L87 Difference]: Start difference. First operand 324 states and 411 transitions. Second operand 4 states. [2020-12-22 11:40:34,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:40:34,522 INFO L93 Difference]: Finished difference Result 733 states and 944 transitions. [2020-12-22 11:40:34,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:40:34,522 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-12-22 11:40:34,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:40:34,525 INFO L225 Difference]: With dead ends: 733 [2020-12-22 11:40:34,525 INFO L226 Difference]: Without dead ends: 434 [2020-12-22 11:40:34,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 11:40:34,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-12-22 11:40:34,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 346. [2020-12-22 11:40:34,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-12-22 11:40:34,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 433 transitions. [2020-12-22 11:40:34,545 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 433 transitions. Word has length 54 [2020-12-22 11:40:34,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:40:34,545 INFO L481 AbstractCegarLoop]: Abstraction has 346 states and 433 transitions. [2020-12-22 11:40:34,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:40:34,546 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 433 transitions. [2020-12-22 11:40:34,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 11:40:34,549 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:34,549 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 11:40:34,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:40:34,549 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.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:40:34,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:34,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1198399464, now seen corresponding path program 1 times [2020-12-22 11:40:34,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:34,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12997599] [2020-12-22 11:40:34,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:35,023 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 11:40:35,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12997599] [2020-12-22 11:40:35,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:35,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:40:35,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304006367] [2020-12-22 11:40:35,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:40:35,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:35,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:40:35,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:40:35,028 INFO L87 Difference]: Start difference. First operand 346 states and 433 transitions. Second operand 5 states. [2020-12-22 11:40:35,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:40:35,497 INFO L93 Difference]: Finished difference Result 632 states and 790 transitions. [2020-12-22 11:40:35,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:40:35,498 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-12-22 11:40:35,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:40:35,500 INFO L225 Difference]: With dead ends: 632 [2020-12-22 11:40:35,500 INFO L226 Difference]: Without dead ends: 346 [2020-12-22 11:40:35,502 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:40:35,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-12-22 11:40:35,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-12-22 11:40:35,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-12-22 11:40:35,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 428 transitions. [2020-12-22 11:40:35,513 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 428 transitions. Word has length 54 [2020-12-22 11:40:35,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:40:35,514 INFO L481 AbstractCegarLoop]: Abstraction has 346 states and 428 transitions. [2020-12-22 11:40:35,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:40:35,514 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 428 transitions. [2020-12-22 11:40:35,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-22 11:40:35,515 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:35,516 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] [2020-12-22 11:40:35,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:40:35,516 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.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:40:35,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:35,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1082335587, now seen corresponding path program 1 times [2020-12-22 11:40:35,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:35,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43555997] [2020-12-22 11:40:35,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:35,866 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 11:40:35,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43555997] [2020-12-22 11:40:35,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:35,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:40:35,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393789806] [2020-12-22 11:40:35,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:40:35,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:35,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:40:35,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:40:35,869 INFO L87 Difference]: Start difference. First operand 346 states and 428 transitions. Second operand 4 states. [2020-12-22 11:40:36,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:40:36,091 INFO L93 Difference]: Finished difference Result 512 states and 624 transitions. [2020-12-22 11:40:36,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:40:36,092 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2020-12-22 11:40:36,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:40:36,098 INFO L225 Difference]: With dead ends: 512 [2020-12-22 11:40:36,098 INFO L226 Difference]: Without dead ends: 346 [2020-12-22 11:40:36,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 11:40:36,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-12-22 11:40:36,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-12-22 11:40:36,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-12-22 11:40:36,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 427 transitions. [2020-12-22 11:40:36,120 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 427 transitions. Word has length 60 [2020-12-22 11:40:36,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:40:36,121 INFO L481 AbstractCegarLoop]: Abstraction has 346 states and 427 transitions. [2020-12-22 11:40:36,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:40:36,121 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 427 transitions. [2020-12-22 11:40:36,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 11:40:36,124 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:36,125 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] [2020-12-22 11:40:36,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:40:36,126 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.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:40:36,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:36,127 INFO L82 PathProgramCache]: Analyzing trace with hash -851585648, now seen corresponding path program 1 times [2020-12-22 11:40:36,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:36,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807105824] [2020-12-22 11:40:36,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:36,595 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 11:40:36,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807105824] [2020-12-22 11:40:36,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:36,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:40:36,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707842543] [2020-12-22 11:40:36,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:40:36,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:36,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:40:36,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:40:36,600 INFO L87 Difference]: Start difference. First operand 346 states and 427 transitions. Second operand 5 states. [2020-12-22 11:40:36,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:40:36,897 INFO L93 Difference]: Finished difference Result 517 states and 627 transitions. [2020-12-22 11:40:36,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:40:36,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2020-12-22 11:40:36,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:40:36,900 INFO L225 Difference]: With dead ends: 517 [2020-12-22 11:40:36,900 INFO L226 Difference]: Without dead ends: 346 [2020-12-22 11:40:36,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 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 11:40:36,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-12-22 11:40:36,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-12-22 11:40:36,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-12-22 11:40:36,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 425 transitions. [2020-12-22 11:40:36,912 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 425 transitions. Word has length 64 [2020-12-22 11:40:36,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:40:36,913 INFO L481 AbstractCegarLoop]: Abstraction has 346 states and 425 transitions. [2020-12-22 11:40:36,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:40:36,913 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 425 transitions. [2020-12-22 11:40:36,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 11:40:36,914 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:36,914 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] [2020-12-22 11:40:36,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:40:36,915 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.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:40:36,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:36,915 INFO L82 PathProgramCache]: Analyzing trace with hash -404020686, now seen corresponding path program 1 times [2020-12-22 11:40:36,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:36,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777111923] [2020-12-22 11:40:36,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:37,819 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 11:40:37,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777111923] [2020-12-22 11:40:37,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:37,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:40:37,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958000084] [2020-12-22 11:40:37,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:40:37,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:37,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:40:37,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:40:37,826 INFO L87 Difference]: Start difference. First operand 346 states and 425 transitions. Second operand 6 states. [2020-12-22 11:40:38,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:40:38,923 INFO L93 Difference]: Finished difference Result 606 states and 721 transitions. [2020-12-22 11:40:38,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 11:40:38,924 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-12-22 11:40:38,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:40:38,929 INFO L225 Difference]: With dead ends: 606 [2020-12-22 11:40:38,930 INFO L226 Difference]: Without dead ends: 585 [2020-12-22 11:40:38,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-22 11:40:38,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-12-22 11:40:38,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 368. [2020-12-22 11:40:38,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2020-12-22 11:40:38,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 446 transitions. [2020-12-22 11:40:38,947 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 446 transitions. Word has length 66 [2020-12-22 11:40:38,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:40:38,949 INFO L481 AbstractCegarLoop]: Abstraction has 368 states and 446 transitions. [2020-12-22 11:40:38,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:40:38,955 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 446 transitions. [2020-12-22 11:40:38,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 11:40:38,956 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:38,956 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] [2020-12-22 11:40:38,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:40:38,957 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.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:40:38,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:38,958 INFO L82 PathProgramCache]: Analyzing trace with hash -38404312, now seen corresponding path program 1 times [2020-12-22 11:40:38,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:38,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896066927] [2020-12-22 11:40:38,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:40,123 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 11:40:40,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896066927] [2020-12-22 11:40:40,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:40,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:40:40,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568267117] [2020-12-22 11:40:40,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:40:40,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:40,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:40:40,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:40:40,127 INFO L87 Difference]: Start difference. First operand 368 states and 446 transitions. Second operand 5 states. [2020-12-22 11:40:43,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:40:43,875 INFO L93 Difference]: Finished difference Result 1125 states and 1364 transitions. [2020-12-22 11:40:43,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:40:43,876 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2020-12-22 11:40:43,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:40:43,881 INFO L225 Difference]: With dead ends: 1125 [2020-12-22 11:40:43,881 INFO L226 Difference]: Without dead ends: 779 [2020-12-22 11:40:43,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:40:43,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2020-12-22 11:40:43,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 443. [2020-12-22 11:40:43,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-12-22 11:40:43,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 542 transitions. [2020-12-22 11:40:43,913 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 542 transitions. Word has length 70 [2020-12-22 11:40:43,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:40:43,914 INFO L481 AbstractCegarLoop]: Abstraction has 443 states and 542 transitions. [2020-12-22 11:40:43,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:40:43,914 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 542 transitions. [2020-12-22 11:40:43,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 11:40:43,919 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:43,919 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] [2020-12-22 11:40:43,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:40:43,920 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.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:40:43,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:43,922 INFO L82 PathProgramCache]: Analyzing trace with hash 641654058, now seen corresponding path program 1 times [2020-12-22 11:40:43,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:43,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480744758] [2020-12-22 11:40:43,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:44,721 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 11:40:44,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480744758] [2020-12-22 11:40:44,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:44,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:40:44,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644166835] [2020-12-22 11:40:44,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:40:44,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:44,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:40:44,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:40:44,724 INFO L87 Difference]: Start difference. First operand 443 states and 542 transitions. Second operand 6 states. [2020-12-22 11:40:48,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:40:48,158 INFO L93 Difference]: Finished difference Result 890 states and 1071 transitions. [2020-12-22 11:40:48,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:40:48,159 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-12-22 11:40:48,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:40:48,163 INFO L225 Difference]: With dead ends: 890 [2020-12-22 11:40:48,163 INFO L226 Difference]: Without dead ends: 679 [2020-12-22 11:40:48,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:40:48,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2020-12-22 11:40:48,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 448. [2020-12-22 11:40:48,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2020-12-22 11:40:48,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 548 transitions. [2020-12-22 11:40:48,183 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 548 transitions. Word has length 70 [2020-12-22 11:40:48,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:40:48,183 INFO L481 AbstractCegarLoop]: Abstraction has 448 states and 548 transitions. [2020-12-22 11:40:48,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:40:48,184 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 548 transitions. [2020-12-22 11:40:48,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 11:40:48,185 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:48,185 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] [2020-12-22 11:40:48,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:40:48,185 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.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:40:48,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:48,186 INFO L82 PathProgramCache]: Analyzing trace with hash 383488620, now seen corresponding path program 1 times [2020-12-22 11:40:48,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:48,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078800257] [2020-12-22 11:40:48,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:54,916 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 11:40:54,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078800257] [2020-12-22 11:40:54,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:54,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 11:40:54,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57843426] [2020-12-22 11:40:54,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:40:54,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:54,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:40:54,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:40:54,920 INFO L87 Difference]: Start difference. First operand 448 states and 548 transitions. Second operand 7 states. [2020-12-22 11:40:58,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:40:58,372 INFO L93 Difference]: Finished difference Result 684 states and 828 transitions. [2020-12-22 11:40:58,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:40:58,373 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2020-12-22 11:40:58,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:40:58,376 INFO L225 Difference]: With dead ends: 684 [2020-12-22 11:40:58,376 INFO L226 Difference]: Without dead ends: 474 [2020-12-22 11:40:58,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-12-22 11:40:58,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-12-22 11:40:58,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 452. [2020-12-22 11:40:58,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2020-12-22 11:40:58,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 553 transitions. [2020-12-22 11:40:58,394 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 553 transitions. Word has length 70 [2020-12-22 11:40:58,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:40:58,395 INFO L481 AbstractCegarLoop]: Abstraction has 452 states and 553 transitions. [2020-12-22 11:40:58,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:40:58,395 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 553 transitions. [2020-12-22 11:40:58,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 11:40:58,396 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:58,396 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] [2020-12-22 11:40:58,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 11:40:58,396 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.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:40:58,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:58,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1049521562, now seen corresponding path program 1 times [2020-12-22 11:40:58,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:58,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030468106] [2020-12-22 11:40:58,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:59,246 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 11:40:59,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030468106] [2020-12-22 11:40:59,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:59,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 11:40:59,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458445805] [2020-12-22 11:40:59,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:40:59,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:59,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:40:59,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:40:59,250 INFO L87 Difference]: Start difference. First operand 452 states and 553 transitions. Second operand 7 states. [2020-12-22 11:41:03,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:41:03,224 INFO L93 Difference]: Finished difference Result 885 states and 1063 transitions. [2020-12-22 11:41:03,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:41:03,225 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2020-12-22 11:41:03,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:41:03,230 INFO L225 Difference]: With dead ends: 885 [2020-12-22 11:41:03,230 INFO L226 Difference]: Without dead ends: 681 [2020-12-22 11:41:03,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-12-22 11:41:03,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2020-12-22 11:41:03,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 454. [2020-12-22 11:41:03,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2020-12-22 11:41:03,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 555 transitions. [2020-12-22 11:41:03,251 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 555 transitions. Word has length 70 [2020-12-22 11:41:03,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:41:03,252 INFO L481 AbstractCegarLoop]: Abstraction has 454 states and 555 transitions. [2020-12-22 11:41:03,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:41:03,252 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 555 transitions. [2020-12-22 11:41:03,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 11:41:03,253 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:41:03,253 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] [2020-12-22 11:41:03,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 11:41:03,256 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.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:41:03,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:41:03,256 INFO L82 PathProgramCache]: Analyzing trace with hash -369463192, now seen corresponding path program 1 times [2020-12-22 11:41:03,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:41:03,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46537264] [2020-12-22 11:41:03,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:41:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:41:04,028 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 11:41:04,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46537264] [2020-12-22 11:41:04,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:41:04,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:41:04,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732026100] [2020-12-22 11:41:04,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:41:04,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:41:04,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:41:04,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:41:04,031 INFO L87 Difference]: Start difference. First operand 454 states and 555 transitions. Second operand 5 states. [2020-12-22 11:41:07,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:41:07,921 INFO L93 Difference]: Finished difference Result 1131 states and 1359 transitions. [2020-12-22 11:41:07,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:41:07,923 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2020-12-22 11:41:07,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:41:07,927 INFO L225 Difference]: With dead ends: 1131 [2020-12-22 11:41:07,928 INFO L226 Difference]: Without dead ends: 706 [2020-12-22 11:41:07,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:41:07,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-12-22 11:41:07,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 454. [2020-12-22 11:41:07,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2020-12-22 11:41:07,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 544 transitions. [2020-12-22 11:41:07,952 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 544 transitions. Word has length 70 [2020-12-22 11:41:07,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:41:07,952 INFO L481 AbstractCegarLoop]: Abstraction has 454 states and 544 transitions. [2020-12-22 11:41:07,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:41:07,953 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 544 transitions. [2020-12-22 11:41:07,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 11:41:07,954 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:41:07,954 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] [2020-12-22 11:41:07,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 11:41:07,955 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.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:41:07,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:41:07,955 INFO L82 PathProgramCache]: Analyzing trace with hash -2064965336, now seen corresponding path program 1 times [2020-12-22 11:41:07,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:41:07,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771725941] [2020-12-22 11:41:07,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:41:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:41:25,873 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 11:41:25,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771725941] [2020-12-22 11:41:25,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:41:25,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:41:25,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943794469] [2020-12-22 11:41:25,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:41:25,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:41:25,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:41:25,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:41:25,878 INFO L87 Difference]: Start difference. First operand 454 states and 544 transitions. Second operand 6 states. [2020-12-22 11:41:29,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:41:29,118 INFO L93 Difference]: Finished difference Result 684 states and 807 transitions. [2020-12-22 11:41:29,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:41:29,119 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-12-22 11:41:29,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:41:29,122 INFO L225 Difference]: With dead ends: 684 [2020-12-22 11:41:29,122 INFO L226 Difference]: Without dead ends: 465 [2020-12-22 11:41:29,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:41:29,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-12-22 11:41:29,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 445. [2020-12-22 11:41:29,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2020-12-22 11:41:29,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 531 transitions. [2020-12-22 11:41:29,140 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 531 transitions. Word has length 70 [2020-12-22 11:41:29,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:41:29,140 INFO L481 AbstractCegarLoop]: Abstraction has 445 states and 531 transitions. [2020-12-22 11:41:29,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:41:29,140 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 531 transitions. [2020-12-22 11:41:29,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 11:41:29,141 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:41:29,141 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 11:41:29,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 11:41:29,142 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.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:41:29,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:41:29,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1844189889, now seen corresponding path program 1 times [2020-12-22 11:41:29,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:41:29,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034637512] [2020-12-22 11:41:29,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:41:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:41:29,724 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 11:41:29,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034637512] [2020-12-22 11:41:29,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:41:29,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 11:41:29,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566248799] [2020-12-22 11:41:29,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 11:41:29,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:41:29,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 11:41:29,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:41:29,727 INFO L87 Difference]: Start difference. First operand 445 states and 531 transitions. Second operand 8 states. [2020-12-22 11:41:32,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:41:32,147 INFO L93 Difference]: Finished difference Result 777 states and 901 transitions. [2020-12-22 11:41:32,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 11:41:32,148 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 72 [2020-12-22 11:41:32,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:41:32,153 INFO L225 Difference]: With dead ends: 777 [2020-12-22 11:41:32,153 INFO L226 Difference]: Without dead ends: 752 [2020-12-22 11:41:32,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2020-12-22 11:41:32,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2020-12-22 11:41:32,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 457. [2020-12-22 11:41:32,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-12-22 11:41:32,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 542 transitions. [2020-12-22 11:41:32,174 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 542 transitions. Word has length 72 [2020-12-22 11:41:32,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:41:32,175 INFO L481 AbstractCegarLoop]: Abstraction has 457 states and 542 transitions. [2020-12-22 11:41:32,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 11:41:32,175 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 542 transitions. [2020-12-22 11:41:32,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 11:41:32,176 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:41:32,176 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 11:41:32,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 11:41:32,176 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:41:32,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:41:32,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1034843263, now seen corresponding path program 1 times [2020-12-22 11:41:32,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:41:32,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608944491] [2020-12-22 11:41:32,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:41:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:41:32,833 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 11:41:32,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608944491] [2020-12-22 11:41:32,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:41:32,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:41:32,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836560342] [2020-12-22 11:41:32,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:41:32,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:41:32,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:41:32,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:41:32,836 INFO L87 Difference]: Start difference. First operand 457 states and 542 transitions. Second operand 5 states. [2020-12-22 11:41:36,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:41:36,186 INFO L93 Difference]: Finished difference Result 919 states and 1065 transitions. [2020-12-22 11:41:36,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:41:36,187 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2020-12-22 11:41:36,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:41:36,191 INFO L225 Difference]: With dead ends: 919 [2020-12-22 11:41:36,191 INFO L226 Difference]: Without dead ends: 708 [2020-12-22 11:41:36,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:41:36,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-12-22 11:41:36,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 463. [2020-12-22 11:41:36,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-12-22 11:41:36,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 548 transitions. [2020-12-22 11:41:36,211 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 548 transitions. Word has length 72 [2020-12-22 11:41:36,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:41:36,212 INFO L481 AbstractCegarLoop]: Abstraction has 463 states and 548 transitions. [2020-12-22 11:41:36,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:41:36,212 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 548 transitions. [2020-12-22 11:41:36,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 11:41:36,213 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:41:36,213 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 11:41:36,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 11:41:36,214 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:41:36,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:41:36,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1571180291, now seen corresponding path program 1 times [2020-12-22 11:41:36,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:41:36,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76139177] [2020-12-22 11:41:36,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:41:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:41:40,811 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 11:41:40,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76139177] [2020-12-22 11:41:40,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:41:40,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-22 11:41:40,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125243054] [2020-12-22 11:41:40,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 11:41:40,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:41:40,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 11:41:40,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-12-22 11:41:40,822 INFO L87 Difference]: Start difference. First operand 463 states and 548 transitions. Second operand 13 states. [2020-12-22 11:41:44,487 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 29 [2020-12-22 11:41:44,921 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 35 [2020-12-22 11:41:45,241 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-12-22 11:41:45,487 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-12-22 11:41:45,853 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2020-12-22 11:41:46,121 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-12-22 11:41:46,293 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 27 [2020-12-22 11:41:46,601 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2020-12-22 11:41:46,794 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-12-22 11:41:46,939 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 22 [2020-12-22 11:41:47,138 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-12-22 11:41:47,346 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 25 [2020-12-22 11:41:47,581 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2020-12-22 11:41:48,027 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2020-12-22 11:41:48,236 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2020-12-22 11:41:48,663 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2020-12-22 11:41:49,066 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 24 [2020-12-22 11:41:49,309 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 24 [2020-12-22 11:41:49,517 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 25 [2020-12-22 11:41:49,779 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-12-22 11:41:50,959 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 20 [2020-12-22 11:41:51,167 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 21 [2020-12-22 11:41:51,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:41:51,954 INFO L93 Difference]: Finished difference Result 953 states and 1095 transitions. [2020-12-22 11:41:51,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-12-22 11:41:51,956 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2020-12-22 11:41:51,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:41:51,960 INFO L225 Difference]: With dead ends: 953 [2020-12-22 11:41:51,961 INFO L226 Difference]: Without dead ends: 951 [2020-12-22 11:41:51,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=549, Invalid=2643, Unknown=0, NotChecked=0, Total=3192 [2020-12-22 11:41:51,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2020-12-22 11:41:51,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 455. [2020-12-22 11:41:51,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-12-22 11:41:51,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 540 transitions. [2020-12-22 11:41:51,993 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 540 transitions. Word has length 72 [2020-12-22 11:41:51,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:41:51,993 INFO L481 AbstractCegarLoop]: Abstraction has 455 states and 540 transitions. [2020-12-22 11:41:51,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 11:41:51,993 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 540 transitions. [2020-12-22 11:41:51,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-22 11:41:51,997 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:41:51,997 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, 1, 1] [2020-12-22 11:41:51,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 11:41:51,997 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:41:51,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:41:51,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1201974401, now seen corresponding path program 1 times [2020-12-22 11:41:51,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:41:51,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386027674] [2020-12-22 11:41:51,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:41:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:41:52,335 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 11:41:52,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386027674] [2020-12-22 11:41:52,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:41:52,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:41:52,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373128958] [2020-12-22 11:41:52,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:41:52,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:41:52,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:41:52,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:41:52,337 INFO L87 Difference]: Start difference. First operand 455 states and 540 transitions. Second operand 3 states. [2020-12-22 11:41:52,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:41:52,363 INFO L93 Difference]: Finished difference Result 794 states and 925 transitions. [2020-12-22 11:41:52,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:41:52,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-12-22 11:41:52,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:41:52,367 INFO L225 Difference]: With dead ends: 794 [2020-12-22 11:41:52,368 INFO L226 Difference]: Without dead ends: 588 [2020-12-22 11:41:52,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:41:52,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2020-12-22 11:41:52,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 455. [2020-12-22 11:41:52,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-12-22 11:41:52,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 539 transitions. [2020-12-22 11:41:52,387 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 539 transitions. Word has length 74 [2020-12-22 11:41:52,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:41:52,387 INFO L481 AbstractCegarLoop]: Abstraction has 455 states and 539 transitions. [2020-12-22 11:41:52,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:41:52,387 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 539 transitions. [2020-12-22 11:41:52,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 11:41:52,389 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:41:52,389 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, 1, 1, 1] [2020-12-22 11:41:52,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 11:41:52,389 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:41:52,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:41:52,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1879472485, now seen corresponding path program 1 times [2020-12-22 11:41:52,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:41:52,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828745872] [2020-12-22 11:41:52,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:41:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:41:52,922 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 11:41:52,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828745872] [2020-12-22 11:41:52,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:41:52,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:41:52,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593662782] [2020-12-22 11:41:52,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:41:52,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:41:52,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:41:52,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:41:52,924 INFO L87 Difference]: Start difference. First operand 455 states and 539 transitions. Second operand 3 states. [2020-12-22 11:41:52,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:41:52,959 INFO L93 Difference]: Finished difference Result 663 states and 778 transitions. [2020-12-22 11:41:52,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:41:52,960 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-12-22 11:41:52,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:41:52,962 INFO L225 Difference]: With dead ends: 663 [2020-12-22 11:41:52,963 INFO L226 Difference]: Without dead ends: 457 [2020-12-22 11:41:52,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:41:52,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-12-22 11:41:52,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 456. [2020-12-22 11:41:52,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2020-12-22 11:41:52,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 540 transitions. [2020-12-22 11:41:52,980 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 540 transitions. Word has length 75 [2020-12-22 11:41:52,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:41:52,981 INFO L481 AbstractCegarLoop]: Abstraction has 456 states and 540 transitions. [2020-12-22 11:41:52,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:41:52,981 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 540 transitions. [2020-12-22 11:41:52,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 11:41:52,982 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:41:52,982 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, 1, 1, 1, 1, 1] [2020-12-22 11:41:52,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 11:41:52,982 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:41:52,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:41:52,983 INFO L82 PathProgramCache]: Analyzing trace with hash -29910471, now seen corresponding path program 1 times [2020-12-22 11:41:52,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:41:52,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143766696] [2020-12-22 11:41:52,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:41:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:41:53,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:41:53,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143766696] [2020-12-22 11:41:53,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936263135] [2020-12-22 11:41:53,675 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 11:41:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:41:55,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 3020 conjuncts, 53 conjunts are in the unsatisfiable core [2020-12-22 11:41:55,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:41:55,360 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-22 11:41:55,362 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:41:55,386 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:41:55,391 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:41:55,392 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:17 [2020-12-22 11:41:55,524 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_76|, |v_#memory_$Pointer$.base_73|], 2=[|v_#memory_$Pointer$.base_74|]} [2020-12-22 11:41:55,535 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:41:55,535 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 42 [2020-12-22 11:41:55,542 INFO L547 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 11:41:55,575 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:41:55,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:41:55,598 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2020-12-22 11:41:55,600 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:41:55,623 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:41:55,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:41:55,636 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-22 11:41:55,638 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 11:41:55,661 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:41:55,666 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:41:55,666 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:57, output treesize:14 [2020-12-22 11:41:55,855 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 8 treesize of output 4 [2020-12-22 11:41:55,860 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:41:55,865 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:41:55,866 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:41:55,866 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:2 [2020-12-22 11:41:56,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 11:41:56,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:41:56,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2020-12-22 11:41:56,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009852244] [2020-12-22 11:41:56,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 11:41:56,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:41:56,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 11:41:56,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-12-22 11:41:56,006 INFO L87 Difference]: Start difference. First operand 456 states and 540 transitions. Second operand 11 states. [2020-12-22 11:42:08,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:42:08,008 INFO L93 Difference]: Finished difference Result 1457 states and 1714 transitions. [2020-12-22 11:42:08,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 11:42:08,010 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 77 [2020-12-22 11:42:08,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:42:08,015 INFO L225 Difference]: With dead ends: 1457 [2020-12-22 11:42:08,015 INFO L226 Difference]: Without dead ends: 1132 [2020-12-22 11:42:08,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=246, Invalid=746, Unknown=0, NotChecked=0, Total=992 [2020-12-22 11:42:08,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2020-12-22 11:42:08,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 491. [2020-12-22 11:42:08,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-12-22 11:42:08,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 586 transitions. [2020-12-22 11:42:08,057 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 586 transitions. Word has length 77 [2020-12-22 11:42:08,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:42:08,057 INFO L481 AbstractCegarLoop]: Abstraction has 491 states and 586 transitions. [2020-12-22 11:42:08,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 11:42:08,058 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 586 transitions. [2020-12-22 11:42:08,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 11:42:08,059 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:42:08,059 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:42:08,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:42:08,274 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:42:08,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:42:08,275 INFO L82 PathProgramCache]: Analyzing trace with hash 396885564, now seen corresponding path program 1 times [2020-12-22 11:42:08,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:42:08,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230429364] [2020-12-22 11:42:08,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:42:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:42:09,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 11:42:09,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230429364] [2020-12-22 11:42:09,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:42:09,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 11:42:09,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961907875] [2020-12-22 11:42:09,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 11:42:09,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:42:09,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 11:42:09,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-12-22 11:42:09,849 INFO L87 Difference]: Start difference. First operand 491 states and 586 transitions. Second operand 10 states. [2020-12-22 11:42:12,431 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2020-12-22 11:42:15,005 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2020-12-22 11:42:15,191 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-12-22 11:42:15,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:42:15,613 INFO L93 Difference]: Finished difference Result 1878 states and 2216 transitions. [2020-12-22 11:42:15,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-22 11:42:15,614 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 80 [2020-12-22 11:42:15,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:42:15,622 INFO L225 Difference]: With dead ends: 1878 [2020-12-22 11:42:15,622 INFO L226 Difference]: Without dead ends: 1502 [2020-12-22 11:42:15,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=153, Invalid=353, Unknown=0, NotChecked=0, Total=506 [2020-12-22 11:42:15,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2020-12-22 11:42:15,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 507. [2020-12-22 11:42:15,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-12-22 11:42:15,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 605 transitions. [2020-12-22 11:42:15,655 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 605 transitions. Word has length 80 [2020-12-22 11:42:15,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:42:15,656 INFO L481 AbstractCegarLoop]: Abstraction has 507 states and 605 transitions. [2020-12-22 11:42:15,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 11:42:15,656 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 605 transitions. [2020-12-22 11:42:15,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 11:42:15,657 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:42:15,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:42:15,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 11:42:15,658 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:42:15,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:42:15,658 INFO L82 PathProgramCache]: Analyzing trace with hash 759500671, now seen corresponding path program 1 times [2020-12-22 11:42:15,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:42:15,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704354423] [2020-12-22 11:42:15,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:42:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:42:16,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 11:42:16,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704354423] [2020-12-22 11:42:16,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:42:16,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 11:42:16,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266975106] [2020-12-22 11:42:16,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:42:16,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:42:16,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:42:16,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:42:16,430 INFO L87 Difference]: Start difference. First operand 507 states and 605 transitions. Second operand 7 states. [2020-12-22 11:42:17,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:42:17,883 INFO L93 Difference]: Finished difference Result 1118 states and 1309 transitions. [2020-12-22 11:42:17,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:42:17,884 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-12-22 11:42:17,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:42:17,889 INFO L225 Difference]: With dead ends: 1118 [2020-12-22 11:42:17,889 INFO L226 Difference]: Without dead ends: 630 [2020-12-22 11:42:17,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-12-22 11:42:17,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-12-22 11:42:17,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 507. [2020-12-22 11:42:17,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-12-22 11:42:17,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 599 transitions. [2020-12-22 11:42:17,914 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 599 transitions. Word has length 81 [2020-12-22 11:42:17,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:42:17,914 INFO L481 AbstractCegarLoop]: Abstraction has 507 states and 599 transitions. [2020-12-22 11:42:17,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:42:17,914 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 599 transitions. [2020-12-22 11:42:17,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 11:42:17,915 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:42:17,916 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:42:17,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 11:42:17,916 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:42:17,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:42:17,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1194526884, now seen corresponding path program 1 times [2020-12-22 11:42:17,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:42:17,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431789556] [2020-12-22 11:42:17,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:42:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:42:18,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 11:42:18,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431789556] [2020-12-22 11:42:18,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:42:18,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:42:18,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741200737] [2020-12-22 11:42:18,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:42:18,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:42:18,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:42:18,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:42:18,260 INFO L87 Difference]: Start difference. First operand 507 states and 599 transitions. Second operand 4 states. [2020-12-22 11:42:18,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:42:18,940 INFO L93 Difference]: Finished difference Result 1039 states and 1223 transitions. [2020-12-22 11:42:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:42:18,945 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2020-12-22 11:42:18,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:42:18,948 INFO L225 Difference]: With dead ends: 1039 [2020-12-22 11:42:18,948 INFO L226 Difference]: Without dead ends: 537 [2020-12-22 11:42:18,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 11:42:18,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-12-22 11:42:18,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 501. [2020-12-22 11:42:18,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-12-22 11:42:18,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 581 transitions. [2020-12-22 11:42:18,976 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 581 transitions. Word has length 83 [2020-12-22 11:42:18,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:42:18,977 INFO L481 AbstractCegarLoop]: Abstraction has 501 states and 581 transitions. [2020-12-22 11:42:18,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:42:18,977 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 581 transitions. [2020-12-22 11:42:18,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 11:42:18,978 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:42:18,978 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:42:18,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 11:42:18,979 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:42:18,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:42:18,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1326492904, now seen corresponding path program 1 times [2020-12-22 11:42:18,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:42:18,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778216005] [2020-12-22 11:42:18,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:42:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:42:19,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 11:42:19,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778216005] [2020-12-22 11:42:19,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:42:19,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:42:19,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717569570] [2020-12-22 11:42:19,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:42:19,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:42:19,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:42:19,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:42:19,267 INFO L87 Difference]: Start difference. First operand 501 states and 581 transitions. Second operand 4 states. [2020-12-22 11:42:19,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:42:19,964 INFO L93 Difference]: Finished difference Result 1012 states and 1154 transitions. [2020-12-22 11:42:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:42:19,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2020-12-22 11:42:19,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:42:19,969 INFO L225 Difference]: With dead ends: 1012 [2020-12-22 11:42:19,969 INFO L226 Difference]: Without dead ends: 549 [2020-12-22 11:42:19,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 11:42:19,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-12-22 11:42:19,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 471. [2020-12-22 11:42:19,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2020-12-22 11:42:19,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 525 transitions. [2020-12-22 11:42:19,994 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 525 transitions. Word has length 83 [2020-12-22 11:42:19,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:42:19,994 INFO L481 AbstractCegarLoop]: Abstraction has 471 states and 525 transitions. [2020-12-22 11:42:19,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:42:19,994 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 525 transitions. [2020-12-22 11:42:19,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 11:42:19,996 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:42:19,996 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:42:19,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 11:42:19,996 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:42:19,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:42:19,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1750139626, now seen corresponding path program 1 times [2020-12-22 11:42:19,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:42:19,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234970462] [2020-12-22 11:42:19,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:42:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:42:20,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:42:20,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234970462] [2020-12-22 11:42:20,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338958922] [2020-12-22 11:42:20,752 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 11:42:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:42:22,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 3029 conjuncts, 51 conjunts are in the unsatisfiable core [2020-12-22 11:42:22,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:42:22,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:42:22,379 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 13 [2020-12-22 11:42:22,381 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:42:22,404 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:42:22,411 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 23 treesize of output 15 [2020-12-22 11:42:22,413 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:42:22,429 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:42:22,430 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:42:22,431 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:15 [2020-12-22 11:42:22,635 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 9 treesize of output 5 [2020-12-22 11:42:22,643 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:42:22,648 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:42:22,649 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:42:22,649 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:1 [2020-12-22 11:42:22,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 11:42:22,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:42:22,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2020-12-22 11:42:22,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574045725] [2020-12-22 11:42:22,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 11:42:22,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:42:22,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 11:42:22,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-12-22 11:42:22,759 INFO L87 Difference]: Start difference. First operand 471 states and 525 transitions. Second operand 10 states. [2020-12-22 11:42:29,825 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2020-12-22 11:42:30,344 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2020-12-22 11:42:32,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:42:32,807 INFO L93 Difference]: Finished difference Result 928 states and 1030 transitions. [2020-12-22 11:42:32,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 11:42:32,809 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2020-12-22 11:42:32,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:42:32,811 INFO L225 Difference]: With dead ends: 928 [2020-12-22 11:42:32,811 INFO L226 Difference]: Without dead ends: 560 [2020-12-22 11:42:32,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2020-12-22 11:42:32,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-12-22 11:42:32,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 469. [2020-12-22 11:42:32,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-12-22 11:42:32,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 522 transitions. [2020-12-22 11:42:32,836 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 522 transitions. Word has length 83 [2020-12-22 11:42:32,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:42:32,836 INFO L481 AbstractCegarLoop]: Abstraction has 469 states and 522 transitions. [2020-12-22 11:42:32,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 11:42:32,836 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 522 transitions. [2020-12-22 11:42:32,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-22 11:42:32,837 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:42:32,837 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:42:33,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-12-22 11:42:33,052 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_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 11:42:33,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:42:33,053 INFO L82 PathProgramCache]: Analyzing trace with hash -72972179, now seen corresponding path program 1 times [2020-12-22 11:42:33,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:42:33,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917985811] [2020-12-22 11:42:33,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:42:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:42:34,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:42:34,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917985811] [2020-12-22 11:42:34,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207565273] [2020-12-22 11:42:34,202 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 11:42:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:42:35,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 3046 conjuncts, 48 conjunts are in the unsatisfiable core [2020-12-22 11:42:35,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:42:35,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:42:35,944 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 13 [2020-12-22 11:42:35,945 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:42:35,966 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:42:35,973 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 24 treesize of output 16 [2020-12-22 11:42:35,975 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 11:42:35,990 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:42:35,991 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:42:35,991 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:42, output treesize:16 [2020-12-22 11:42:36,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:42:36,121 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2020-12-22 11:42:36,130 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:42:36,157 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:42:36,162 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:42:36,162 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:30, output treesize:19 [2020-12-22 11:42:36,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:42:36,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:42:36,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:42:36,341 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 28 [2020-12-22 11:42:36,342 INFO L348 Elim1Store]: treesize reduction 28, result has 54.8 percent of original size [2020-12-22 11:42:36,342 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 72 [2020-12-22 11:42:36,347 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:42:36,414 INFO L625 ElimStorePlain]: treesize reduction 76, result has 34.5 percent of original size [2020-12-22 11:42:36,419 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-12-22 11:42:36,419 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:44, output treesize:40 [2020-12-22 11:42:42,527 WARN L197 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 31 [2020-12-22 11:42:44,619 WARN L197 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 30 [2020-12-22 11:42:48,856 WARN L197 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 30 [2020-12-22 11:42:48,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 11:42:48,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:42:48,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5] total 16 [2020-12-22 11:42:48,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895257255] [2020-12-22 11:42:49,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 11:42:49,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:42:49,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 11:42:49,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=196, Unknown=3, NotChecked=0, Total=240 [2020-12-22 11:42:49,001 INFO L87 Difference]: Start difference. First operand 469 states and 522 transitions. Second operand 13 states.