/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_priority_queue_init_static_harness.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:45:01,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:45:01,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:45:01,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:45:01,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:45:01,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:45:01,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:45:01,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:45:01,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:45:01,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:45:01,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:45:01,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:45:01,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:45:01,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:45:01,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:45:01,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:45:01,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:45:01,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:45:01,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:45:01,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:45:01,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:45:01,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:45:01,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:45:01,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:45:01,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:45:01,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:45:01,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:45:01,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:45:01,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:45:01,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:45:01,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:45:01,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:45:01,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:45:01,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:45:01,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:45:01,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:45:01,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:45:01,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:45:01,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:45:01,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:45:01,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:45:01,985 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:45:02,057 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:45:02,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:45:02,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:45:02,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:45:02,061 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:45:02,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:45:02,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:45:02,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:45:02,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:45:02,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:45:02,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:45:02,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:45:02,066 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:45:02,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:45:02,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:45:02,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:45:02,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:45:02,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:45:02,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:45:02,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:45:02,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:45:02,069 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:45:02,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:45:02,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:45:02,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:45:02,070 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:45:02,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:45:02,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:45:02,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:45:02,589 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:45:02,590 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:45:02,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2020-12-22 11:45:02,691 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5185d4687/a692151f7bf841ccaa5d014c6dfc4f05/FLAGa6ccecd63 [2020-12-22 11:45:03,841 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:45:03,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2020-12-22 11:45:03,903 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5185d4687/a692151f7bf841ccaa5d014c6dfc4f05/FLAGa6ccecd63 [2020-12-22 11:45:04,179 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5185d4687/a692151f7bf841ccaa5d014c6dfc4f05 [2020-12-22 11:45:04,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:45:04,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:45:04,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:45:04,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:45:04,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:45:04,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:45:04" (1/1) ... [2020-12-22 11:45:04,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b1a890c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:04, skipping insertion in model container [2020-12-22 11:45:04,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:45:04" (1/1) ... [2020-12-22 11:45:04,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:45:04,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:45:04,643 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_priority_queue_init_static_harness.i[4504,4517] [2020-12-22 11:45:04,651 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_priority_queue_init_static_harness.i[4564,4577] [2020-12-22 11:45:04,679 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-22 11:45:04,686 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-22 11:45:05,876 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-22 11:45:05,968 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:05,973 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:05,974 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:05,975 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:05,977 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:06,016 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:06,017 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:06,023 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:06,024 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:06,528 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-22 11:45:06,529 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-22 11:45:06,530 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-22 11:45:06,531 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-22 11:45:06,533 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-22 11:45:06,534 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-22 11:45:06,534 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-22 11:45:06,535 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-22 11:45:06,536 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-22 11:45:06,537 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-22 11:45:06,707 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:06,708 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:06,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:45:06,818 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:45:06,835 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_priority_queue_init_static_harness.i[4504,4517] [2020-12-22 11:45:06,836 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_priority_queue_init_static_harness.i[4564,4577] [2020-12-22 11:45:06,838 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-22 11:45:06,840 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-22 11:45:06,878 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-22 11:45:06,896 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:06,896 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:06,900 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:06,901 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:06,902 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:06,919 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:06,921 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:06,924 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:06,924 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:07,010 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-22 11:45:07,011 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-22 11:45:07,012 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-22 11:45:07,013 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-22 11:45:07,015 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-22 11:45:07,015 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-22 11:45:07,016 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-22 11:45:07,017 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-22 11:45:07,017 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-22 11:45:07,018 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-22 11:45:07,056 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:07,057 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:07,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:45:07,916 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:45:07,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:07 WrapperNode [2020-12-22 11:45:07,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:45:07,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:45:07,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:45:07,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:45:07,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:07" (1/1) ... [2020-12-22 11:45:08,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:07" (1/1) ... [2020-12-22 11:45:08,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:45:08,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:45:08,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:45:08,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:45:08,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:07" (1/1) ... [2020-12-22 11:45:08,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:07" (1/1) ... [2020-12-22 11:45:08,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:07" (1/1) ... [2020-12-22 11:45:08,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:07" (1/1) ... [2020-12-22 11:45:08,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:07" (1/1) ... [2020-12-22 11:45:08,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:07" (1/1) ... [2020-12-22 11:45:08,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:07" (1/1) ... [2020-12-22 11:45:08,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:45:08,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:45:08,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:45:08,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:45:08,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:07" (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 11:45:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:45:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 11:45:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 11:45:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 11:45:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:45:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:45:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:45:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2020-12-22 11:45:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 11:45:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 11:45:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:45:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:45:17,802 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:45:17,803 INFO L299 CfgBuilder]: Removed 165 assume(true) statements. [2020-12-22 11:45:17,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:45:17 BoogieIcfgContainer [2020-12-22 11:45:17,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:45:17,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:45:17,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:45:17,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:45:17,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:45:04" (1/3) ... [2020-12-22 11:45:17,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4294bece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:45:17, skipping insertion in model container [2020-12-22 11:45:17,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:07" (2/3) ... [2020-12-22 11:45:17,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4294bece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:45:17, skipping insertion in model container [2020-12-22 11:45:17,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:45:17" (3/3) ... [2020-12-22 11:45:17,815 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_static_harness.i [2020-12-22 11:45:17,823 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:45:17,830 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2020-12-22 11:45:17,852 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-12-22 11:45:17,883 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:45:17,884 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:45:17,884 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:45:17,884 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:45:17,884 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:45:17,884 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:45:17,884 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:45:17,885 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:45:17,910 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states. [2020-12-22 11:45:17,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-22 11:45:17,918 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:17,919 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] [2020-12-22 11:45:17,920 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:17,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:17,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1473699063, now seen corresponding path program 1 times [2020-12-22 11:45:17,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:17,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568721795] [2020-12-22 11:45:17,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:18,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:18,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568721795] [2020-12-22 11:45:18,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:18,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:45:18,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602384810] [2020-12-22 11:45:18,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:45:18,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:18,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:45:18,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:45:18,880 INFO L87 Difference]: Start difference. First operand 205 states. Second operand 2 states. [2020-12-22 11:45:18,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:18,931 INFO L93 Difference]: Finished difference Result 407 states and 558 transitions. [2020-12-22 11:45:18,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:45:18,933 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 43 [2020-12-22 11:45:18,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:18,947 INFO L225 Difference]: With dead ends: 407 [2020-12-22 11:45:18,947 INFO L226 Difference]: Without dead ends: 199 [2020-12-22 11:45:18,952 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 11:45:18,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-12-22 11:45:19,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2020-12-22 11:45:19,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-12-22 11:45:19,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 245 transitions. [2020-12-22 11:45:19,016 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 245 transitions. Word has length 43 [2020-12-22 11:45:19,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:19,016 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 245 transitions. [2020-12-22 11:45:19,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:45:19,016 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 245 transitions. [2020-12-22 11:45:19,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-22 11:45:19,018 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:19,018 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] [2020-12-22 11:45:19,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:45:19,019 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:19,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:19,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1036054349, now seen corresponding path program 1 times [2020-12-22 11:45:19,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:19,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799129031] [2020-12-22 11:45:19,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:19,154 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:19,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [775892955] [2020-12-22 11:45:19,155 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 11:45:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:20,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 2467 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 11:45:20,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:20,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:20,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799129031] [2020-12-22 11:45:20,931 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:20,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775892955] [2020-12-22 11:45:20,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:20,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:45:20,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787097167] [2020-12-22 11:45:20,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:45:20,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:20,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:45:20,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:45:20,936 INFO L87 Difference]: Start difference. First operand 199 states and 245 transitions. Second operand 7 states. [2020-12-22 11:45:21,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:21,286 INFO L93 Difference]: Finished difference Result 372 states and 455 transitions. [2020-12-22 11:45:21,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:45:21,287 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2020-12-22 11:45:21,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:21,290 INFO L225 Difference]: With dead ends: 372 [2020-12-22 11:45:21,290 INFO L226 Difference]: Without dead ends: 237 [2020-12-22 11:45:21,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:45:21,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-12-22 11:45:21,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 199. [2020-12-22 11:45:21,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-12-22 11:45:21,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 244 transitions. [2020-12-22 11:45:21,315 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 244 transitions. Word has length 49 [2020-12-22 11:45:21,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:21,316 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 244 transitions. [2020-12-22 11:45:21,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:45:21,316 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 244 transitions. [2020-12-22 11:45:21,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 11:45:21,320 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:21,320 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:45:21,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-22 11:45:21,535 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:21,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:21,536 INFO L82 PathProgramCache]: Analyzing trace with hash 802072627, now seen corresponding path program 1 times [2020-12-22 11:45:21,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:21,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516739341] [2020-12-22 11:45:21,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:21,654 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:21,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [583164349] [2020-12-22 11:45:21,655 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 11:45:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:22,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 2557 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 11:45:22,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:22,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:22,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516739341] [2020-12-22 11:45:22,931 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:22,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583164349] [2020-12-22 11:45:22,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:22,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:45:22,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186923901] [2020-12-22 11:45:22,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:45:22,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:22,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:45:22,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:45:22,934 INFO L87 Difference]: Start difference. First operand 199 states and 244 transitions. Second operand 4 states. [2020-12-22 11:45:23,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:23,242 INFO L93 Difference]: Finished difference Result 360 states and 452 transitions. [2020-12-22 11:45:23,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:45:23,244 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-12-22 11:45:23,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:23,246 INFO L225 Difference]: With dead ends: 360 [2020-12-22 11:45:23,246 INFO L226 Difference]: Without dead ends: 224 [2020-12-22 11:45:23,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:23,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-12-22 11:45:23,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 209. [2020-12-22 11:45:23,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-12-22 11:45:23,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 254 transitions. [2020-12-22 11:45:23,270 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 254 transitions. Word has length 57 [2020-12-22 11:45:23,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:23,270 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 254 transitions. [2020-12-22 11:45:23,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:45:23,271 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 254 transitions. [2020-12-22 11:45:23,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 11:45:23,276 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:23,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:45:23,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:23,478 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:23,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:23,480 INFO L82 PathProgramCache]: Analyzing trace with hash -972934735, now seen corresponding path program 1 times [2020-12-22 11:45:23,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:23,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213713270] [2020-12-22 11:45:23,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:23,625 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:23,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [94527518] [2020-12-22 11:45:23,626 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 11:45:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:25,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 2562 conjuncts, 48 conjunts are in the unsatisfiable core [2020-12-22 11:45:25,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:25,251 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 11 treesize of output 7 [2020-12-22 11:45:25,252 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:45:25,263 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:45:25,265 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 11:45:25,266 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:12 [2020-12-22 11:45:25,328 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 12 [2020-12-22 11:45:25,330 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:45:25,338 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:45:25,339 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 11:45:25,339 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:12 [2020-12-22 11:45:25,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:25,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213713270] [2020-12-22 11:45:25,401 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:25,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94527518] [2020-12-22 11:45:25,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:25,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 11:45:25,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044245258] [2020-12-22 11:45:25,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 11:45:25,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:25,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 11:45:25,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-12-22 11:45:25,403 INFO L87 Difference]: Start difference. First operand 209 states and 254 transitions. Second operand 10 states. [2020-12-22 11:45:28,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:28,372 INFO L93 Difference]: Finished difference Result 403 states and 489 transitions. [2020-12-22 11:45:28,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:45:28,373 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2020-12-22 11:45:28,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:28,375 INFO L225 Difference]: With dead ends: 403 [2020-12-22 11:45:28,375 INFO L226 Difference]: Without dead ends: 259 [2020-12-22 11:45:28,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2020-12-22 11:45:28,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-12-22 11:45:28,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 207. [2020-12-22 11:45:28,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-12-22 11:45:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 251 transitions. [2020-12-22 11:45:28,416 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 251 transitions. Word has length 57 [2020-12-22 11:45:28,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:28,417 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 251 transitions. [2020-12-22 11:45:28,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 11:45:28,417 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 251 transitions. [2020-12-22 11:45:28,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-22 11:45:28,420 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:28,420 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] [2020-12-22 11:45:28,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:28,621 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:28,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:28,623 INFO L82 PathProgramCache]: Analyzing trace with hash -702926311, now seen corresponding path program 1 times [2020-12-22 11:45:28,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:28,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53804702] [2020-12-22 11:45:28,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:28,724 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:28,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1285067608] [2020-12-22 11:45:28,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:29,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 2562 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 11:45:29,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:30,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:30,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53804702] [2020-12-22 11:45:30,110 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:30,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285067608] [2020-12-22 11:45:30,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:30,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:45:30,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947998895] [2020-12-22 11:45:30,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:45:30,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:30,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:45:30,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:30,116 INFO L87 Difference]: Start difference. First operand 207 states and 251 transitions. Second operand 5 states. [2020-12-22 11:45:35,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:35,043 INFO L93 Difference]: Finished difference Result 452 states and 555 transitions. [2020-12-22 11:45:35,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:45:35,044 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-12-22 11:45:35,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:35,046 INFO L225 Difference]: With dead ends: 452 [2020-12-22 11:45:35,046 INFO L226 Difference]: Without dead ends: 307 [2020-12-22 11:45:35,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:45:35,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-12-22 11:45:35,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 214. [2020-12-22 11:45:35,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-12-22 11:45:35,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 258 transitions. [2020-12-22 11:45:35,063 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 258 transitions. Word has length 59 [2020-12-22 11:45:35,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:35,064 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 258 transitions. [2020-12-22 11:45:35,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:45:35,064 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 258 transitions. [2020-12-22 11:45:35,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-22 11:45:35,065 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:35,065 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] [2020-12-22 11:45:35,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:35,280 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:35,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:35,282 INFO L82 PathProgramCache]: Analyzing trace with hash -645668009, now seen corresponding path program 1 times [2020-12-22 11:45:35,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:35,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425756101] [2020-12-22 11:45:35,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:35,383 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:35,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1766224325] [2020-12-22 11:45:35,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:48:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:48:51,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 2567 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 11:48:51,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:48:51,420 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 11:48:51,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425756101] [2020-12-22 11:48:51,421 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:48:51,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766224325] [2020-12-22 11:48:51,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:48:51,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:48:51,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496803118] [2020-12-22 11:48:51,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:48:51,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:48:51,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:48:51,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:48:51,423 INFO L87 Difference]: Start difference. First operand 214 states and 258 transitions. Second operand 3 states. [2020-12-22 11:48:51,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:48:51,446 INFO L93 Difference]: Finished difference Result 398 states and 483 transitions. [2020-12-22 11:48:51,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:48:51,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2020-12-22 11:48:51,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:48:51,449 INFO L225 Difference]: With dead ends: 398 [2020-12-22 11:48:51,449 INFO L226 Difference]: Without dead ends: 214 [2020-12-22 11:48:51,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 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 11:48:51,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-12-22 11:48:51,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-12-22 11:48:51,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-12-22 11:48:51,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2020-12-22 11:48:51,462 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 59 [2020-12-22 11:48:51,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:48:51,463 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2020-12-22 11:48:51,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:48:51,463 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2020-12-22 11:48:51,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-22 11:48:51,468 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:48:51,468 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 11:48:51,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 11:48:51,683 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:48:51,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:48:51,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1838986612, now seen corresponding path program 1 times [2020-12-22 11:48:51,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:48:51,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451926831] [2020-12-22 11:48:51,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:48:51,778 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:48:51,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1397461179] [2020-12-22 11:48:51,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true