/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_top_harness.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:45:33,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:45:33,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:45:33,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:45:33,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:45:33,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:45:33,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:45:33,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:45:33,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:45:33,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:45:33,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:45:33,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:45:33,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:45:33,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:45:33,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:45:33,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:45:33,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:45:33,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:45:33,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:45:33,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:45:33,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:45:33,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:45:33,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:45:33,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:45:33,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:45:33,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:45:33,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:45:33,389 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:45:33,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:45:33,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:45:33,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:45:33,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:45:33,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:45:33,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:45:33,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:45:33,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:45:33,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:45:33,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:45:33,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:45:33,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:45:33,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:45:33,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:45:33,430 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:45:33,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:45:33,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:45:33,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:45:33,432 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:45:33,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:45:33,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:45:33,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:45:33,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:45:33,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:45:33,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:45:33,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:45:33,434 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:45:33,434 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:45:33,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:45:33,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:45:33,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:45:33,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:45:33,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:45:33,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:45:33,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:45:33,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:45:33,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:45:33,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:45:33,440 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:45:33,440 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:45:33,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:45:33,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:45:33,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:45:33,889 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:45:33,893 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:45:33,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2020-12-22 11:45:33,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c16d6b042/9ad319d20ed8468083d4bab185778705/FLAGb332fe6ef [2020-12-22 11:45:35,030 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:45:35,030 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2020-12-22 11:45:35,085 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c16d6b042/9ad319d20ed8468083d4bab185778705/FLAGb332fe6ef [2020-12-22 11:45:35,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c16d6b042/9ad319d20ed8468083d4bab185778705 [2020-12-22 11:45:35,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:45:35,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:45:35,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:45:35,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:45:35,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:45:35,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:45:35" (1/1) ... [2020-12-22 11:45:35,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@195b083d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:35, skipping insertion in model container [2020-12-22 11:45:35,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:45:35" (1/1) ... [2020-12-22 11:45:35,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:45:35,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:45:35,953 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_top_harness.i[4496,4509] [2020-12-22 11:45:35,963 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_top_harness.i[4556,4569] [2020-12-22 11:45:36,015 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-22 11:45:36,027 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-22 11:45:36,958 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-22 11:45:37,062 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:37,063 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:37,063 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:37,064 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:37,065 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:37,079 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:37,080 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:37,082 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:37,082 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:37,542 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-22 11:45:37,543 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-22 11:45:37,544 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-22 11:45:37,561 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-22 11:45:37,562 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-22 11:45:37,566 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-22 11:45:37,567 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-22 11:45:37,573 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-22 11:45:37,574 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-22 11:45:37,575 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-22 11:45:37,816 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:37,816 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:37,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:45:37,966 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:45:38,002 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_top_harness.i[4496,4509] [2020-12-22 11:45:38,003 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_top_harness.i[4556,4569] [2020-12-22 11:45:38,008 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-22 11:45:38,009 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-22 11:45:38,072 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-22 11:45:38,086 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:38,087 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:38,087 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:38,088 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:38,088 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:38,095 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:38,095 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:38,096 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:38,097 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:38,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-22 11:45:38,133 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-22 11:45:38,134 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-22 11:45:38,135 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-22 11:45:38,136 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-22 11:45:38,137 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-22 11:45:38,137 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-22 11:45:38,138 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-22 11:45:38,138 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-22 11:45:38,139 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-22 11:45:38,171 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:38,172 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:38,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:45:39,228 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:45:39,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:39 WrapperNode [2020-12-22 11:45:39,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:45:39,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:45:39,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:45:39,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:45:39,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:39" (1/1) ... [2020-12-22 11:45:39,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:39" (1/1) ... [2020-12-22 11:45:39,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:45:39,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:45:39,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:45:39,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:45:39,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:39" (1/1) ... [2020-12-22 11:45:39,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:39" (1/1) ... [2020-12-22 11:45:39,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:39" (1/1) ... [2020-12-22 11:45:39,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:39" (1/1) ... [2020-12-22 11:45:39,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:39" (1/1) ... [2020-12-22 11:45:39,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:39" (1/1) ... [2020-12-22 11:45:39,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:39" (1/1) ... [2020-12-22 11:45:39,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:45:39,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:45:39,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:45:39,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:45:39,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:39" (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 11:45:39,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:45:39,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 11:45:39,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 11:45:39,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 11:45:39,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:45:39,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:45:39,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:45:39,895 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2020-12-22 11:45:39,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 11:45:39,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 11:45:39,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:45:39,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:45:50,223 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:45:50,223 INFO L299 CfgBuilder]: Removed 280 assume(true) statements. [2020-12-22 11:45:50,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:45:50 BoogieIcfgContainer [2020-12-22 11:45:50,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:45:50,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:45:50,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:45:50,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:45:50,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:45:35" (1/3) ... [2020-12-22 11:45:50,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cfcf4b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:45:50, skipping insertion in model container [2020-12-22 11:45:50,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:39" (2/3) ... [2020-12-22 11:45:50,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cfcf4b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:45:50, skipping insertion in model container [2020-12-22 11:45:50,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:45:50" (3/3) ... [2020-12-22 11:45:50,237 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_top_harness.i [2020-12-22 11:45:50,244 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:45:50,252 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2020-12-22 11:45:50,274 INFO L253 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2020-12-22 11:45:50,309 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:45:50,310 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:45:50,310 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:45:50,310 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:45:50,310 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:45:50,310 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:45:50,310 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:45:50,311 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:45:50,337 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states. [2020-12-22 11:45:50,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-22 11:45:50,348 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:50,349 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] [2020-12-22 11:45:50,350 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:50,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:50,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1155465246, now seen corresponding path program 1 times [2020-12-22 11:45:50,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:50,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433199561] [2020-12-22 11:45:50,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:51,339 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 11:45:51,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433199561] [2020-12-22 11:45:51,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:51,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:45:51,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625658338] [2020-12-22 11:45:51,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:45:51,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:51,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:45:51,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:45:51,372 INFO L87 Difference]: Start difference. First operand 352 states. Second operand 2 states. [2020-12-22 11:45:51,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:51,469 INFO L93 Difference]: Finished difference Result 698 states and 949 transitions. [2020-12-22 11:45:51,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:45:51,470 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 44 [2020-12-22 11:45:51,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:51,491 INFO L225 Difference]: With dead ends: 698 [2020-12-22 11:45:51,492 INFO L226 Difference]: Without dead ends: 345 [2020-12-22 11:45:51,503 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 11:45:51,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-12-22 11:45:51,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2020-12-22 11:45:51,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-12-22 11:45:51,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 432 transitions. [2020-12-22 11:45:51,598 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 432 transitions. Word has length 44 [2020-12-22 11:45:51,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:51,598 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 432 transitions. [2020-12-22 11:45:51,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:45:51,599 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 432 transitions. [2020-12-22 11:45:51,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-22 11:45:51,602 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:51,602 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] [2020-12-22 11:45:51,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:45:51,603 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:51,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:51,604 INFO L82 PathProgramCache]: Analyzing trace with hash -892659362, now seen corresponding path program 1 times [2020-12-22 11:45:51,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:51,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068228429] [2020-12-22 11:45:51,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:52,150 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 11:45:52,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068228429] [2020-12-22 11:45:52,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:52,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:45:52,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086371898] [2020-12-22 11:45:52,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:45:52,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:52,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:45:52,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:45:52,159 INFO L87 Difference]: Start difference. First operand 345 states and 432 transitions. Second operand 4 states. [2020-12-22 11:45:52,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:52,306 INFO L93 Difference]: Finished difference Result 610 states and 759 transitions. [2020-12-22 11:45:52,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:45:52,308 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-12-22 11:45:52,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:52,313 INFO L225 Difference]: With dead ends: 610 [2020-12-22 11:45:52,313 INFO L226 Difference]: Without dead ends: 345 [2020-12-22 11:45:52,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:45:52,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-12-22 11:45:52,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2020-12-22 11:45:52,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-12-22 11:45:52,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 430 transitions. [2020-12-22 11:45:52,365 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 430 transitions. Word has length 44 [2020-12-22 11:45:52,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:52,366 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 430 transitions. [2020-12-22 11:45:52,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:45:52,366 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 430 transitions. [2020-12-22 11:45:52,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 11:45:52,368 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:52,368 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] [2020-12-22 11:45:52,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:45:52,371 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:52,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:52,373 INFO L82 PathProgramCache]: Analyzing trace with hash -620500979, now seen corresponding path program 1 times [2020-12-22 11:45:52,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:52,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401823959] [2020-12-22 11:45:52,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:52,847 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 11:45:52,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401823959] [2020-12-22 11:45:52,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:52,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:45:52,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543523965] [2020-12-22 11:45:52,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:45:52,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:52,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:45:52,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:52,857 INFO L87 Difference]: Start difference. First operand 345 states and 430 transitions. Second operand 5 states. [2020-12-22 11:45:53,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:53,341 INFO L93 Difference]: Finished difference Result 725 states and 889 transitions. [2020-12-22 11:45:53,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:45:53,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2020-12-22 11:45:53,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:53,344 INFO L225 Difference]: With dead ends: 725 [2020-12-22 11:45:53,344 INFO L226 Difference]: Without dead ends: 428 [2020-12-22 11:45:53,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 11:45:53,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-12-22 11:45:53,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 345. [2020-12-22 11:45:53,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-12-22 11:45:53,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 428 transitions. [2020-12-22 11:45:53,365 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 428 transitions. Word has length 48 [2020-12-22 11:45:53,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:53,366 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 428 transitions. [2020-12-22 11:45:53,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:45:53,366 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 428 transitions. [2020-12-22 11:45:53,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 11:45:53,376 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:53,377 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 11:45:53,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:45:53,379 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:53,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:53,382 INFO L82 PathProgramCache]: Analyzing trace with hash -582936023, now seen corresponding path program 1 times [2020-12-22 11:45:53,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:53,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104838990] [2020-12-22 11:45:53,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:53,550 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:53,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [604975528] [2020-12-22 11:45:53,551 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 11:45:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:54,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 2615 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-22 11:45:55,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:55,167 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 11:45:55,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104838990] [2020-12-22 11:45:55,168 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:55,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604975528] [2020-12-22 11:45:55,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:55,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:45:55,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471087768] [2020-12-22 11:45:55,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:45:55,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:55,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:45:55,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:45:55,171 INFO L87 Difference]: Start difference. First operand 345 states and 428 transitions. Second operand 6 states. [2020-12-22 11:45:55,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:55,461 INFO L93 Difference]: Finished difference Result 611 states and 754 transitions. [2020-12-22 11:45:55,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:45:55,462 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2020-12-22 11:45:55,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:55,464 INFO L225 Difference]: With dead ends: 611 [2020-12-22 11:45:55,464 INFO L226 Difference]: Without dead ends: 345 [2020-12-22 11:45:55,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:45:55,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-12-22 11:45:55,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2020-12-22 11:45:55,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-12-22 11:45:55,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 426 transitions. [2020-12-22 11:45:55,503 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 426 transitions. Word has length 56 [2020-12-22 11:45:55,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:55,504 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 426 transitions. [2020-12-22 11:45:55,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:45:55,504 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 426 transitions. [2020-12-22 11:45:55,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 11:45:55,509 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:55,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:45:55,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:55,723 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:55,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:55,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1336520550, now seen corresponding path program 1 times [2020-12-22 11:45:55,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:55,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546116122] [2020-12-22 11:45:55,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:55,875 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:55,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2144003283] [2020-12-22 11:45:55,877 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 11:45:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:57,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 2665 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 11:45:57,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:57,506 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 11:45:57,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546116122] [2020-12-22 11:45:57,507 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:57,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144003283] [2020-12-22 11:45:57,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:57,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:45:57,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831234889] [2020-12-22 11:45:57,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:45:57,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:57,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:45:57,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:45:57,510 INFO L87 Difference]: Start difference. First operand 345 states and 426 transitions. Second operand 7 states. [2020-12-22 11:45:58,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:58,100 INFO L93 Difference]: Finished difference Result 627 states and 774 transitions. [2020-12-22 11:45:58,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:45:58,102 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2020-12-22 11:45:58,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:58,104 INFO L225 Difference]: With dead ends: 627 [2020-12-22 11:45:58,105 INFO L226 Difference]: Without dead ends: 345 [2020-12-22 11:45:58,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-12-22 11:45:58,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-12-22 11:45:58,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2020-12-22 11:45:58,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-12-22 11:45:58,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 424 transitions. [2020-12-22 11:45:58,130 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 424 transitions. Word has length 68 [2020-12-22 11:45:58,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:58,131 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 424 transitions. [2020-12-22 11:45:58,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:45:58,131 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 424 transitions. [2020-12-22 11:45:58,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 11:45:58,132 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:58,132 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:45:58,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:58,346 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:58,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:58,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1065001986, now seen corresponding path program 1 times [2020-12-22 11:45:58,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:58,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126147914] [2020-12-22 11:45:58,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:58,485 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:58,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1013045247] [2020-12-22 11:45:58,486 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 11:45:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:59,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 2760 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 11:45:59,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:59,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:59,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126147914] [2020-12-22 11:45:59,916 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:59,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013045247] [2020-12-22 11:45:59,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:59,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:45:59,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732007725] [2020-12-22 11:45:59,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:45:59,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:59,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:45:59,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:45:59,919 INFO L87 Difference]: Start difference. First operand 345 states and 424 transitions. Second operand 6 states. [2020-12-22 11:46:00,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:46:00,350 INFO L93 Difference]: Finished difference Result 683 states and 829 transitions. [2020-12-22 11:46:00,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:46:00,351 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-12-22 11:46:00,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:46:00,354 INFO L225 Difference]: With dead ends: 683 [2020-12-22 11:46:00,354 INFO L226 Difference]: Without dead ends: 452 [2020-12-22 11:46:00,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-12-22 11:46:00,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2020-12-22 11:46:00,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 345. [2020-12-22 11:46:00,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-12-22 11:46:00,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 421 transitions. [2020-12-22 11:46:00,374 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 421 transitions. Word has length 76 [2020-12-22 11:46:00,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:46:00,375 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 421 transitions. [2020-12-22 11:46:00,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:46:00,375 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 421 transitions. [2020-12-22 11:46:00,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 11:46:00,376 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:46:00,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:46:00,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:00,590 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:46:00,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:46:00,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1734654266, now seen corresponding path program 1 times [2020-12-22 11:46:00,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:46:00,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472286560] [2020-12-22 11:46:00,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:46:00,750 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:46:00,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1321822619] [2020-12-22 11:46:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:46:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:46:02,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 2950 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-22 11:46:02,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:46:02,224 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 11:46:02,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472286560] [2020-12-22 11:46:02,225 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:46:02,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321822619] [2020-12-22 11:46:02,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:46:02,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:46:02,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757860498] [2020-12-22 11:46:02,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:46:02,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:46:02,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:46:02,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:46:02,227 INFO L87 Difference]: Start difference. First operand 345 states and 421 transitions. Second operand 6 states. [2020-12-22 11:46:02,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:46:02,752 INFO L93 Difference]: Finished difference Result 891 states and 1076 transitions. [2020-12-22 11:46:02,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:46:02,753 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2020-12-22 11:46:02,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:46:02,756 INFO L225 Difference]: With dead ends: 891 [2020-12-22 11:46:02,756 INFO L226 Difference]: Without dead ends: 624 [2020-12-22 11:46:02,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:46:02,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-12-22 11:46:02,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 357. [2020-12-22 11:46:02,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2020-12-22 11:46:02,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 437 transitions. [2020-12-22 11:46:02,780 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 437 transitions. Word has length 92 [2020-12-22 11:46:02,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:46:02,780 INFO L481 AbstractCegarLoop]: Abstraction has 357 states and 437 transitions. [2020-12-22 11:46:02,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:46:02,781 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 437 transitions. [2020-12-22 11:46:02,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 11:46:02,781 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:46:02,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:46:02,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:02,997 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:46:02,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:46:02,999 INFO L82 PathProgramCache]: Analyzing trace with hash 621150984, now seen corresponding path program 1 times [2020-12-22 11:46:02,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:46:02,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889354840] [2020-12-22 11:46:03,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:46:03,124 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:46:03,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [627034365] [2020-12-22 11:46:03,125 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 11:46:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:46:04,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 2955 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 11:46:04,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:46:04,614 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:46:04,735 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 11:46:04,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889354840] [2020-12-22 11:46:04,735 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:46:04,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627034365] [2020-12-22 11:46:04,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:46:04,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:46:04,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468097730] [2020-12-22 11:46:04,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:46:04,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:46:04,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:46:04,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:46:04,738 INFO L87 Difference]: Start difference. First operand 357 states and 437 transitions. Second operand 6 states. [2020-12-22 11:46:12,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:46:12,628 INFO L93 Difference]: Finished difference Result 895 states and 1091 transitions. [2020-12-22 11:46:12,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:46:12,631 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2020-12-22 11:46:12,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:46:12,639 INFO L225 Difference]: With dead ends: 895 [2020-12-22 11:46:12,639 INFO L226 Difference]: Without dead ends: 613 [2020-12-22 11:46:12,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:46:12,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2020-12-22 11:46:12,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 365. [2020-12-22 11:46:12,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-12-22 11:46:12,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 447 transitions. [2020-12-22 11:46:12,674 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 447 transitions. Word has length 92 [2020-12-22 11:46:12,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:46:12,675 INFO L481 AbstractCegarLoop]: Abstraction has 365 states and 447 transitions. [2020-12-22 11:46:12,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:46:12,675 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 447 transitions. [2020-12-22 11:46:12,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 11:46:12,676 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:46:12,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:46:12,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:12,892 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:46:12,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:46:12,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1745543610, now seen corresponding path program 1 times [2020-12-22 11:46:12,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:46:12,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902717987] [2020-12-22 11:46:12,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:46:13,053 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:46:13,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1949930934] [2020-12-22 11:46:13,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:46:14,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 2952 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 11:46:14,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:46:14,435 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 11:46:14,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902717987] [2020-12-22 11:46:14,436 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:46:14,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949930934] [2020-12-22 11:46:14,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:46:14,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:46:14,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102028656] [2020-12-22 11:46:14,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:46:14,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:46:14,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:46:14,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:46:14,438 INFO L87 Difference]: Start difference. First operand 365 states and 447 transitions. Second operand 4 states. [2020-12-22 11:46:14,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:46:14,537 INFO L93 Difference]: Finished difference Result 667 states and 814 transitions. [2020-12-22 11:46:14,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:46:14,538 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2020-12-22 11:46:14,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:46:14,544 INFO L225 Difference]: With dead ends: 667 [2020-12-22 11:46:14,545 INFO L226 Difference]: Without dead ends: 381 [2020-12-22 11:46:14,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 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 11:46:14,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-12-22 11:46:14,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 373. [2020-12-22 11:46:14,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-12-22 11:46:14,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 455 transitions. [2020-12-22 11:46:14,567 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 455 transitions. Word has length 92 [2020-12-22 11:46:14,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:46:14,568 INFO L481 AbstractCegarLoop]: Abstraction has 373 states and 455 transitions. [2020-12-22 11:46:14,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:46:14,568 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 455 transitions. [2020-12-22 11:46:14,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 11:46:14,569 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:46:14,569 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:46:14,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:14,783 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:46:14,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:46:14,784 INFO L82 PathProgramCache]: Analyzing trace with hash 500035844, now seen corresponding path program 1 times [2020-12-22 11:46:14,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:46:14,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497916591] [2020-12-22 11:46:14,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:46:14,944 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:46:14,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1087866433] [2020-12-22 11:46:14,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:46:17,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 2947 conjuncts, 48 conjunts are in the unsatisfiable core [2020-12-22 11:46:17,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:46:17,683 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 11:46:17,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497916591] [2020-12-22 11:46:17,683 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:46:17,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087866433] [2020-12-22 11:46:17,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:46:17,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 11:46:17,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214429336] [2020-12-22 11:46:17,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:46:17,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:46:17,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:46:17,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:46:17,685 INFO L87 Difference]: Start difference. First operand 373 states and 455 transitions. Second operand 9 states. [2020-12-22 11:46:21,764 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 28 [2020-12-22 11:46:22,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:46:22,604 INFO L93 Difference]: Finished difference Result 952 states and 1160 transitions. [2020-12-22 11:46:22,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 11:46:22,604 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-12-22 11:46:22,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:46:22,608 INFO L225 Difference]: With dead ends: 952 [2020-12-22 11:46:22,608 INFO L226 Difference]: Without dead ends: 654 [2020-12-22 11:46:22,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2020-12-22 11:46:22,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2020-12-22 11:46:22,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 571. [2020-12-22 11:46:22,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-12-22 11:46:22,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 707 transitions. [2020-12-22 11:46:22,646 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 707 transitions. Word has length 92 [2020-12-22 11:46:22,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:46:22,647 INFO L481 AbstractCegarLoop]: Abstraction has 571 states and 707 transitions. [2020-12-22 11:46:22,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:46:22,647 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 707 transitions. [2020-12-22 11:46:22,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 11:46:22,648 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:46:22,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:46:22,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-22 11:46:22,864 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:46:22,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:46:22,865 INFO L82 PathProgramCache]: Analyzing trace with hash 140070726, now seen corresponding path program 1 times [2020-12-22 11:46:22,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:46:22,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875335406] [2020-12-22 11:46:22,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:46:22,987 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:46:22,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1953707026] [2020-12-22 11:46:22,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:46:24,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 2952 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 11:46:24,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:46:24,508 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 11:46:24,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875335406] [2020-12-22 11:46:24,509 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:46:24,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953707026] [2020-12-22 11:46:24,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:46:24,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:46:24,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105111186] [2020-12-22 11:46:24,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:46:24,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:46:24,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:46:24,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:46:24,511 INFO L87 Difference]: Start difference. First operand 571 states and 707 transitions. Second operand 4 states. [2020-12-22 11:46:24,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:46:24,633 INFO L93 Difference]: Finished difference Result 1034 states and 1276 transitions. [2020-12-22 11:46:24,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:46:24,635 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2020-12-22 11:46:24,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:46:24,638 INFO L225 Difference]: With dead ends: 1034 [2020-12-22 11:46:24,639 INFO L226 Difference]: Without dead ends: 559 [2020-12-22 11:46:24,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 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 11:46:24,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-12-22 11:46:24,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 551. [2020-12-22 11:46:24,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2020-12-22 11:46:24,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 677 transitions. [2020-12-22 11:46:24,680 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 677 transitions. Word has length 92 [2020-12-22 11:46:24,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:46:24,681 INFO L481 AbstractCegarLoop]: Abstraction has 551 states and 677 transitions. [2020-12-22 11:46:24,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:46:24,681 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 677 transitions. [2020-12-22 11:46:24,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 11:46:24,682 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:46:24,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:46:24,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-22 11:46:24,898 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:46:24,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:46:24,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1886821254, now seen corresponding path program 1 times [2020-12-22 11:46:24,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:46:24,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035952097] [2020-12-22 11:46:24,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:46:25,007 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:46:25,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1422321296] [2020-12-22 11:46:25,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:46:26,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 2942 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 11:46:26,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:46:26,483 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 11:46:26,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035952097] [2020-12-22 11:46:26,483 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:46:26,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422321296] [2020-12-22 11:46:26,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:46:26,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:46:26,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524612299] [2020-12-22 11:46:26,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:46:26,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:46:26,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:46:26,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:46:26,485 INFO L87 Difference]: Start difference. First operand 551 states and 677 transitions. Second operand 4 states. [2020-12-22 11:46:27,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:46:27,008 INFO L93 Difference]: Finished difference Result 1135 states and 1409 transitions. [2020-12-22 11:46:27,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:46:27,009 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2020-12-22 11:46:27,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:46:27,013 INFO L225 Difference]: With dead ends: 1135 [2020-12-22 11:46:27,013 INFO L226 Difference]: Without dead ends: 631 [2020-12-22 11:46:27,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 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 11:46:27,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2020-12-22 11:46:27,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 583. [2020-12-22 11:46:27,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-12-22 11:46:27,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 707 transitions. [2020-12-22 11:46:27,056 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 707 transitions. Word has length 92 [2020-12-22 11:46:27,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:46:27,057 INFO L481 AbstractCegarLoop]: Abstraction has 583 states and 707 transitions. [2020-12-22 11:46:27,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:46:27,057 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 707 transitions. [2020-12-22 11:46:27,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 11:46:27,059 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:46:27,059 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:46:27,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:27,273 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:46:27,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:46:27,274 INFO L82 PathProgramCache]: Analyzing trace with hash 713142188, now seen corresponding path program 1 times [2020-12-22 11:46:27,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:46:27,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146250200] [2020-12-22 11:46:27,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:46:27,388 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:46:27,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1931607771] [2020-12-22 11:46:27,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:46:28,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 2947 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 11:46:28,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:46:28,990 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 11:46:28,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146250200] [2020-12-22 11:46:28,991 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:46:28,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931607771] [2020-12-22 11:46:28,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:46:28,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:46:28,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165063937] [2020-12-22 11:46:28,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:46:28,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:46:28,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:46:28,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:46:28,993 INFO L87 Difference]: Start difference. First operand 583 states and 707 transitions. Second operand 5 states. [2020-12-22 11:46:34,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:46:34,963 INFO L93 Difference]: Finished difference Result 1341 states and 1611 transitions. [2020-12-22 11:46:34,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:46:34,964 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2020-12-22 11:46:34,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:46:34,971 INFO L225 Difference]: With dead ends: 1341 [2020-12-22 11:46:34,972 INFO L226 Difference]: Without dead ends: 806 [2020-12-22 11:46:34,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 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 11:46:34,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2020-12-22 11:46:35,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 599. [2020-12-22 11:46:35,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2020-12-22 11:46:35,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 721 transitions. [2020-12-22 11:46:35,015 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 721 transitions. Word has length 94 [2020-12-22 11:46:35,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:46:35,015 INFO L481 AbstractCegarLoop]: Abstraction has 599 states and 721 transitions. [2020-12-22 11:46:35,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:46:35,015 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 721 transitions. [2020-12-22 11:46:35,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 11:46:35,016 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:46:35,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:46:35,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:35,230 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:46:35,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:46:35,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1589161194, now seen corresponding path program 1 times [2020-12-22 11:46:35,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:46:35,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976252299] [2020-12-22 11:46:35,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:46:35,377 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:46:35,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1928001189] [2020-12-22 11:46:35,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:46:38,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 2952 conjuncts, 94 conjunts are in the unsatisfiable core [2020-12-22 11:46:38,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:46:38,564 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 11:46:38,565 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:46:38,575 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:38,577 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:46:38,577 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 11:46:38,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:46:38,806 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 31 treesize of output 15 [2020-12-22 11:46:38,809 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:46:38,834 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:38,835 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:46:38,835 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:26 [2020-12-22 11:46:38,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:46:38,900 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 27 treesize of output 15 [2020-12-22 11:46:38,902 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:46:38,919 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:38,920 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:46:38,920 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:20 [2020-12-22 11:46:39,021 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:39,022 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-22 11:46:39,025 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:46:39,031 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:46:39,050 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:39,051 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:46:39,052 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2020-12-22 11:46:39,115 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-22 11:46:39,120 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:46:39,146 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:39,157 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-12-22 11:46:39,157 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:33, output treesize:29 [2020-12-22 11:46:41,482 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-22 11:46:41,484 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:46:41,511 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:41,515 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 11:46:41,515 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:29, output treesize:25 [2020-12-22 11:46:41,943 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2020-12-22 11:46:41,948 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:46:41,952 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:41,953 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:46:41,953 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:1 [2020-12-22 11:46:42,057 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 11:46:42,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976252299] [2020-12-22 11:46:42,058 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:46:42,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928001189] [2020-12-22 11:46:42,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:46:42,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-12-22 11:46:42,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972550709] [2020-12-22 11:46:42,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-22 11:46:42,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:46:42,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-22 11:46:42,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=169, Unknown=1, NotChecked=0, Total=210 [2020-12-22 11:46:42,060 INFO L87 Difference]: Start difference. First operand 599 states and 721 transitions. Second operand 15 states. [2020-12-22 11:46:55,278 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 33 [2020-12-22 11:46:58,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:46:58,453 INFO L93 Difference]: Finished difference Result 1173 states and 1409 transitions. [2020-12-22 11:46:58,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 11:46:58,454 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 94 [2020-12-22 11:46:58,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:46:58,459 INFO L225 Difference]: With dead ends: 1173 [2020-12-22 11:46:58,459 INFO L226 Difference]: Without dead ends: 831 [2020-12-22 11:46:58,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=94, Invalid=367, Unknown=1, NotChecked=0, Total=462 [2020-12-22 11:46:58,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2020-12-22 11:46:58,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 636. [2020-12-22 11:46:58,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2020-12-22 11:46:58,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 765 transitions. [2020-12-22 11:46:58,513 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 765 transitions. Word has length 94 [2020-12-22 11:46:58,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:46:58,513 INFO L481 AbstractCegarLoop]: Abstraction has 636 states and 765 transitions. [2020-12-22 11:46:58,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-22 11:46:58,513 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 765 transitions. [2020-12-22 11:46:58,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 11:46:58,515 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:46:58,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:46:58,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-22 11:46:58,730 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:46:58,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:46:58,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1320642810, now seen corresponding path program 1 times [2020-12-22 11:46:58,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:46:58,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309953273] [2020-12-22 11:46:58,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:46:58,847 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:46:58,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [889129981] [2020-12-22 11:46:58,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true