/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_dynamic_harness-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:44:59,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:44:59,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:44:59,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:44:59,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:44:59,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:44:59,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:44:59,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:44:59,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:44:59,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:44:59,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:44:59,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:44:59,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:44:59,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:44:59,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:44:59,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:44:59,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:44:59,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:44:59,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:44:59,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:44:59,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:44:59,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:44:59,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:44:59,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:44:59,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:44:59,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:44:59,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:44:59,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:44:59,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:44:59,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:44:59,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:44:59,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:44:59,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:44:59,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:44:59,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:44:59,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:44:59,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:44:59,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:44:59,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:44:59,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:44:59,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:44:59,731 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:44:59,790 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:44:59,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:44:59,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:44:59,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:44:59,795 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:44:59,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:44:59,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:44:59,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:44:59,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:44:59,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:44:59,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:44:59,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:44:59,798 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:44:59,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:44:59,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:44:59,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:44:59,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:44:59,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:44:59,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:44:59,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:44:59,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:44:59,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:44:59,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:44:59,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:44:59,801 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:44:59,802 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:45:00,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:45:00,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:45:00,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:45:00,247 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:45:00,248 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:45:00,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2020-12-22 11:45:00,346 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/854b67a7b/4fb05593d2b2446187c7374c852bc62b/FLAG4ac42c4b6 [2020-12-22 11:45:01,481 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:45:01,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2020-12-22 11:45:01,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/854b67a7b/4fb05593d2b2446187c7374c852bc62b/FLAG4ac42c4b6 [2020-12-22 11:45:01,850 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/854b67a7b/4fb05593d2b2446187c7374c852bc62b [2020-12-22 11:45:01,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:45:01,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:45:01,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:45:01,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:45:01,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:45:01,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:45:01" (1/1) ... [2020-12-22 11:45:01,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cae4b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:01, skipping insertion in model container [2020-12-22 11:45:01,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:45:01" (1/1) ... [2020-12-22 11:45:01,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:45:02,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:45:02,321 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_dynamic_harness-1.i[4505,4518] [2020-12-22 11:45:02,330 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_dynamic_harness-1.i[4565,4578] [2020-12-22 11:45:02,358 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-22 11:45:02,365 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-22 11:45:03,278 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-22 11:45:03,369 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,370 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,370 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,371 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,373 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,391 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,392 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,395 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,398 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:04,032 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-22 11:45:04,033 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-22 11:45:04,035 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-22 11:45:04,036 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-22 11:45:04,038 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-22 11:45:04,040 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-22 11:45:04,041 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-22 11:45:04,042 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-22 11:45:04,042 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-22 11:45:04,043 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-22 11:45:04,351 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:04,352 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:04,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:45:04,446 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:45:04,464 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_dynamic_harness-1.i[4505,4518] [2020-12-22 11:45:04,465 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_dynamic_harness-1.i[4565,4578] [2020-12-22 11:45:04,467 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-22 11:45:04,468 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-22 11:45:04,507 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-22 11:45:04,524 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:04,525 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:04,526 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:04,526 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:04,527 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:04,536 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:04,537 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:04,539 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:04,539 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:04,617 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-22 11:45:04,619 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-22 11:45:04,619 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-22 11:45:04,620 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-22 11:45:04,622 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-22 11:45:04,622 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-22 11:45:04,623 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-22 11:45:04,624 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-22 11:45:04,624 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-22 11:45:04,625 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-22 11:45:04,705 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:04,708 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:04,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:45:05,807 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:45:05,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05 WrapperNode [2020-12-22 11:45:05,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:45:05,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:45:05,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:45:05,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:45:05,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:05,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:06,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:45:06,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:45:06,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:45:06,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:45:06,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:06,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:06,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:06,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:06,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:06,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:06,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:06,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:45:06,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:45:06,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:45:06,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:45:06,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (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 11:45:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:45:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 11:45:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 11:45:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 11:45:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:45:06,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:45:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:45:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2020-12-22 11:45:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 11:45:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 11:45:06,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:45:06,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:45:16,278 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:45:16,278 INFO L299 CfgBuilder]: Removed 211 assume(true) statements. [2020-12-22 11:45:16,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:45:16 BoogieIcfgContainer [2020-12-22 11:45:16,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:45:16,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:45:16,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:45:16,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:45:16,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:45:01" (1/3) ... [2020-12-22 11:45:16,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5724be14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:45:16, skipping insertion in model container [2020-12-22 11:45:16,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (2/3) ... [2020-12-22 11:45:16,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5724be14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:45:16, skipping insertion in model container [2020-12-22 11:45:16,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:45:16" (3/3) ... [2020-12-22 11:45:16,290 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness-1.i [2020-12-22 11:45:16,297 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:45:16,314 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-12-22 11:45:16,334 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-12-22 11:45:16,364 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:45:16,364 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:45:16,364 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:45:16,364 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:45:16,365 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:45:16,365 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:45:16,365 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:45:16,365 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:45:16,402 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states. [2020-12-22 11:45:16,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-22 11:45:16,413 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:16,414 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 11:45:16,415 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:16,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:16,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1820256631, now seen corresponding path program 1 times [2020-12-22 11:45:16,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:16,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068002654] [2020-12-22 11:45:16,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:17,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:17,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068002654] [2020-12-22 11:45:17,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:17,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:45:17,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307207076] [2020-12-22 11:45:17,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:45:17,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:17,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:45:17,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:45:17,379 INFO L87 Difference]: Start difference. First operand 282 states. Second operand 2 states. [2020-12-22 11:45:17,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:17,478 INFO L93 Difference]: Finished difference Result 560 states and 779 transitions. [2020-12-22 11:45:17,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:45:17,480 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2020-12-22 11:45:17,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:17,500 INFO L225 Difference]: With dead ends: 560 [2020-12-22 11:45:17,500 INFO L226 Difference]: Without dead ends: 275 [2020-12-22 11:45:17,506 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 11:45:17,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-12-22 11:45:17,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2020-12-22 11:45:17,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-12-22 11:45:17,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 343 transitions. [2020-12-22 11:45:17,573 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 343 transitions. Word has length 42 [2020-12-22 11:45:17,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:17,574 INFO L481 AbstractCegarLoop]: Abstraction has 275 states and 343 transitions. [2020-12-22 11:45:17,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:45:17,574 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 343 transitions. [2020-12-22 11:45:17,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 11:45:17,577 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:17,577 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 11:45:17,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:45:17,578 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:17,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:17,579 INFO L82 PathProgramCache]: Analyzing trace with hash 783700451, now seen corresponding path program 1 times [2020-12-22 11:45:17,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:17,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873798512] [2020-12-22 11:45:17,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:17,737 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:17,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1499150361] [2020-12-22 11:45:17,738 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 11:45:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:19,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 2510 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 11:45:19,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:19,397 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 11:45:19,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873798512] [2020-12-22 11:45:19,398 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:19,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499150361] [2020-12-22 11:45:19,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:19,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:45:19,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402351405] [2020-12-22 11:45:19,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:45:19,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:19,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:45:19,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:19,419 INFO L87 Difference]: Start difference. First operand 275 states and 343 transitions. Second operand 5 states. [2020-12-22 11:45:20,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:20,009 INFO L93 Difference]: Finished difference Result 940 states and 1206 transitions. [2020-12-22 11:45:20,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 11:45:20,010 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-12-22 11:45:20,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:20,017 INFO L225 Difference]: With dead ends: 940 [2020-12-22 11:45:20,017 INFO L226 Difference]: Without dead ends: 920 [2020-12-22 11:45:20,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:45:20,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2020-12-22 11:45:20,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 282. [2020-12-22 11:45:20,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-12-22 11:45:20,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 349 transitions. [2020-12-22 11:45:20,060 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 349 transitions. Word has length 54 [2020-12-22 11:45:20,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:20,060 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 349 transitions. [2020-12-22 11:45:20,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:45:20,060 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 349 transitions. [2020-12-22 11:45:20,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 11:45:20,064 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:20,064 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 11:45:20,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-22 11:45:20,279 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:20,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:20,281 INFO L82 PathProgramCache]: Analyzing trace with hash 785309165, now seen corresponding path program 1 times [2020-12-22 11:45:20,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:20,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272450685] [2020-12-22 11:45:20,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:20,419 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:20,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907171589] [2020-12-22 11:45:20,420 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 11:45:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:21,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 2513 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 11:45:21,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:21,748 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 11:45:21,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272450685] [2020-12-22 11:45:21,748 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:21,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907171589] [2020-12-22 11:45:21,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:21,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:45:21,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215688491] [2020-12-22 11:45:21,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:45:21,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:21,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:45:21,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:45:21,751 INFO L87 Difference]: Start difference. First operand 282 states and 349 transitions. Second operand 3 states. [2020-12-22 11:45:21,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:21,783 INFO L93 Difference]: Finished difference Result 535 states and 666 transitions. [2020-12-22 11:45:21,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:45:21,784 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-12-22 11:45:21,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:21,786 INFO L225 Difference]: With dead ends: 535 [2020-12-22 11:45:21,786 INFO L226 Difference]: Without dead ends: 282 [2020-12-22 11:45:21,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 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 11:45:21,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-12-22 11:45:21,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-12-22 11:45:21,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-12-22 11:45:21,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 347 transitions. [2020-12-22 11:45:21,807 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 347 transitions. Word has length 54 [2020-12-22 11:45:21,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:21,807 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 347 transitions. [2020-12-22 11:45:21,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:45:21,808 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 347 transitions. [2020-12-22 11:45:21,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 11:45:21,810 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:21,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:45:22,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:22,029 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:22,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:22,030 INFO L82 PathProgramCache]: Analyzing trace with hash -598183346, now seen corresponding path program 1 times [2020-12-22 11:45:22,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:22,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281271935] [2020-12-22 11:45:22,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:22,149 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:22,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1778404141] [2020-12-22 11:45:22,150 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 11:45:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:23,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 2527 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-22 11:45:23,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:23,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:23,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281271935] [2020-12-22 11:45:23,535 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:23,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778404141] [2020-12-22 11:45:23,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:23,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:45:23,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521255722] [2020-12-22 11:45:23,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:45:23,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:23,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:45:23,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:23,538 INFO L87 Difference]: Start difference. First operand 282 states and 347 transitions. Second operand 5 states. [2020-12-22 11:45:23,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:23,817 INFO L93 Difference]: Finished difference Result 709 states and 882 transitions. [2020-12-22 11:45:23,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:45:23,818 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2020-12-22 11:45:23,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:23,821 INFO L225 Difference]: With dead ends: 709 [2020-12-22 11:45:23,822 INFO L226 Difference]: Without dead ends: 529 [2020-12-22 11:45:23,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:45:23,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2020-12-22 11:45:23,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 285. [2020-12-22 11:45:23,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2020-12-22 11:45:23,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 350 transitions. [2020-12-22 11:45:23,838 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 350 transitions. Word has length 56 [2020-12-22 11:45:23,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:23,839 INFO L481 AbstractCegarLoop]: Abstraction has 285 states and 350 transitions. [2020-12-22 11:45:23,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:45:23,839 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 350 transitions. [2020-12-22 11:45:23,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 11:45:23,841 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:23,841 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 11:45:24,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:24,055 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:24,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:24,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1496801685, now seen corresponding path program 1 times [2020-12-22 11:45:24,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:24,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569657792] [2020-12-22 11:45:24,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:24,186 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:24,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [916108975] [2020-12-22 11:45:24,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:45:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:25,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 2518 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-22 11:45:25,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:25,428 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 11:45:25,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569657792] [2020-12-22 11:45:25,428 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:25,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916108975] [2020-12-22 11:45:25,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:25,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:45:25,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741912099] [2020-12-22 11:45:25,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:45:25,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:25,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:45:25,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:25,431 INFO L87 Difference]: Start difference. First operand 285 states and 350 transitions. Second operand 5 states. [2020-12-22 11:45:25,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:25,752 INFO L93 Difference]: Finished difference Result 535 states and 669 transitions. [2020-12-22 11:45:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 11:45:25,758 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-12-22 11:45:25,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:25,766 INFO L225 Difference]: With dead ends: 535 [2020-12-22 11:45:25,767 INFO L226 Difference]: Without dead ends: 533 [2020-12-22 11:45:25,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:45:25,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2020-12-22 11:45:25,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 287. [2020-12-22 11:45:25,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-12-22 11:45:25,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 352 transitions. [2020-12-22 11:45:25,784 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 352 transitions. Word has length 57 [2020-12-22 11:45:25,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:25,787 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 352 transitions. [2020-12-22 11:45:25,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:45:25,787 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 352 transitions. [2020-12-22 11:45:25,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 11:45:25,789 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:25,789 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 11:45:26,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:26,004 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:26,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:26,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1496742103, now seen corresponding path program 1 times [2020-12-22 11:45:26,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:26,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419435918] [2020-12-22 11:45:26,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:26,115 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:26,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1209112880] [2020-12-22 11:45:26,116 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 11:48:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:48:08,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 2523 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-22 11:48:08,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:48:08,695 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 11:48:08,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419435918] [2020-12-22 11:48:08,696 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:48:08,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209112880] [2020-12-22 11:48:08,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:48:08,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:48:08,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265983908] [2020-12-22 11:48:08,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:48:08,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:48:08,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:48:08,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:48:08,698 INFO L87 Difference]: Start difference. First operand 287 states and 352 transitions. Second operand 3 states. [2020-12-22 11:48:08,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:48:08,755 INFO L93 Difference]: Finished difference Result 549 states and 679 transitions. [2020-12-22 11:48:08,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:48:08,756 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-12-22 11:48:08,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:48:08,758 INFO L225 Difference]: With dead ends: 549 [2020-12-22 11:48:08,758 INFO L226 Difference]: Without dead ends: 291 [2020-12-22 11:48:08,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 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 11:48:08,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-12-22 11:48:08,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 289. [2020-12-22 11:48:08,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-12-22 11:48:08,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 354 transitions. [2020-12-22 11:48:08,772 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 354 transitions. Word has length 57 [2020-12-22 11:48:08,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:48:08,772 INFO L481 AbstractCegarLoop]: Abstraction has 289 states and 354 transitions. [2020-12-22 11:48:08,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:48:08,772 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 354 transitions. [2020-12-22 11:48:08,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-22 11:48:08,773 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:48:08,774 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] [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2020-12-22 11:48:08,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 11:48:08,987 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:48:08,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:48:08,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1793505165, now seen corresponding path program 1 times [2020-12-22 11:48:08,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:48:08,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996008686] [2020-12-22 11:48:08,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:48:09,107 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:48:09,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1353813370] [2020-12-22 11:48:09,107 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