/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_capacity_harness.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:44:59,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:44:59,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:44:59,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:44:59,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:44:59,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:44:59,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:44:59,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:44:59,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:44:59,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:44:59,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:44:59,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:44:59,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:44:59,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:44:59,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:44:59,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:44:59,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:44:59,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:44:59,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:44:59,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:44:59,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:44:59,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:44:59,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:44:59,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:44:59,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:44:59,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:44:59,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:44:59,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:44:59,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:44:59,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:44:59,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:44:59,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:44:59,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:44:59,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:44:59,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:44:59,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:44:59,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:44:59,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:44:59,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:44:59,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:44:59,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:44:59,480 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:44:59,513 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:44:59,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:44:59,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:44:59,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:44:59,516 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:44:59,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:44:59,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:44:59,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:44:59,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:44:59,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:44:59,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:44:59,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:44:59,519 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:44:59,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:44:59,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:44:59,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:44:59,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:44:59,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:44:59,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:44:59,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:44:59,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:44:59,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:44:59,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:44:59,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:44:59,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:44:59,523 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:44:59,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:44:59,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:44:59,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:44:59,986 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:44:59,986 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:44:59,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2020-12-22 11:45:00,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc99da6a/c50823ef5f9642a3946084bab6780cd9/FLAG8ce69bb73 [2020-12-22 11:45:01,177 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:45:01,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2020-12-22 11:45:01,222 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc99da6a/c50823ef5f9642a3946084bab6780cd9/FLAG8ce69bb73 [2020-12-22 11:45:01,616 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc99da6a/c50823ef5f9642a3946084bab6780cd9 [2020-12-22 11:45:01,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:45:01,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:45:01,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:45:01,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:45:01,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:45:01,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:45:01" (1/1) ... [2020-12-22 11:45:01,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3889ae5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:01, skipping insertion in model container [2020-12-22 11:45:01,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:45:01" (1/1) ... [2020-12-22 11:45:01,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:45:01,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:45:02,129 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_capacity_harness.i[4501,4514] [2020-12-22 11:45:02,136 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_capacity_harness.i[4561,4574] [2020-12-22 11:45:02,159 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-22 11:45:02,165 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-22 11:45:03,016 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-22 11:45:03,113 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,114 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,114 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,115 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,116 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,130 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,131 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,133 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,134 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,476 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-22 11:45:03,477 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-22 11:45:03,479 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-22 11:45:03,480 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-22 11:45:03,482 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-22 11:45:03,483 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-22 11:45:03,484 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-22 11:45:03,485 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-22 11:45:03,485 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-22 11:45:03,486 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-22 11:45:03,644 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,645 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:45:03,781 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:45:03,812 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_capacity_harness.i[4501,4514] [2020-12-22 11:45:03,819 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_capacity_harness.i[4561,4574] [2020-12-22 11:45:03,825 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-22 11:45:03,826 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-22 11:45:03,902 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-22 11:45:03,942 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,945 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,946 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,947 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,947 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,965 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,966 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,969 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:03,971 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:04,042 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-22 11:45:04,043 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-22 11:45:04,044 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-22 11:45:04,046 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-22 11:45:04,047 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-22 11:45:04,047 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-22 11:45:04,048 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-22 11:45:04,049 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-22 11:45:04,049 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-22 11:45:04,050 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-22 11:45:04,124 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:04,127 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:04,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:45:05,246 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:45:05,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05 WrapperNode [2020-12-22 11:45:05,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:45:05,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:45:05,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:45:05,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:45:05,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:05,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:05,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:45:05,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:45:05,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:45:05,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:45:05,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:05,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:05,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:05,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:05,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:05,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:05,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... [2020-12-22 11:45:05,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:45:05,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:45:05,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:45:05,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:45:05,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:45:05,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:45:05,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 11:45:05,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 11:45:05,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 11:45:05,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:45:05,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:45:05,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:45:05,807 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2020-12-22 11:45:05,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 11:45:05,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 11:45:05,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:45:05,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:45:15,722 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:45:15,722 INFO L299 CfgBuilder]: Removed 192 assume(true) statements. [2020-12-22 11:45:15,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:45:15 BoogieIcfgContainer [2020-12-22 11:45:15,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:45:15,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:45:15,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:45:15,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:45:15,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:45:01" (1/3) ... [2020-12-22 11:45:15,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d69e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:45:15, skipping insertion in model container [2020-12-22 11:45:15,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:05" (2/3) ... [2020-12-22 11:45:15,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d69e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:45:15, skipping insertion in model container [2020-12-22 11:45:15,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:45:15" (3/3) ... [2020-12-22 11:45:15,735 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_capacity_harness.i [2020-12-22 11:45:15,742 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:45:15,748 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2020-12-22 11:45:15,770 INFO L253 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2020-12-22 11:45:15,802 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:45:15,803 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:45:15,803 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:45:15,825 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:45:15,825 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:45:15,825 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:45:15,825 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:45:15,825 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:45:15,851 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states. [2020-12-22 11:45:15,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-22 11:45:15,860 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:15,861 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:45:15,862 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:15,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:15,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1889202216, now seen corresponding path program 1 times [2020-12-22 11:45:15,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:15,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138160326] [2020-12-22 11:45:15,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:16,816 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 11:45:16,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138160326] [2020-12-22 11:45:16,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:16,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:45:16,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177604293] [2020-12-22 11:45:16,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:45:16,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:16,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:45:16,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:45:16,845 INFO L87 Difference]: Start difference. First operand 250 states. Second operand 2 states. [2020-12-22 11:45:16,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:16,894 INFO L93 Difference]: Finished difference Result 494 states and 671 transitions. [2020-12-22 11:45:16,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:45:16,899 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 40 [2020-12-22 11:45:16,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:16,917 INFO L225 Difference]: With dead ends: 494 [2020-12-22 11:45:16,917 INFO L226 Difference]: Without dead ends: 243 [2020-12-22 11:45:16,924 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 11:45:16,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-12-22 11:45:16,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2020-12-22 11:45:16,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-12-22 11:45:16,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 301 transitions. [2020-12-22 11:45:16,987 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 301 transitions. Word has length 40 [2020-12-22 11:45:16,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:16,987 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 301 transitions. [2020-12-22 11:45:16,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:45:16,988 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 301 transitions. [2020-12-22 11:45:16,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-22 11:45:16,990 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:16,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:45:16,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:45:16,991 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:16,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:16,992 INFO L82 PathProgramCache]: Analyzing trace with hash -947073706, now seen corresponding path program 1 times [2020-12-22 11:45:16,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:16,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154613358] [2020-12-22 11:45:16,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:17,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:17,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154613358] [2020-12-22 11:45:17,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:17,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:45:17,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159546983] [2020-12-22 11:45:17,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:45:17,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:17,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:45:17,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:45:17,451 INFO L87 Difference]: Start difference. First operand 243 states and 301 transitions. Second operand 4 states. [2020-12-22 11:45:17,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:17,612 INFO L93 Difference]: Finished difference Result 406 states and 497 transitions. [2020-12-22 11:45:17,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:45:17,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-12-22 11:45:17,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:17,620 INFO L225 Difference]: With dead ends: 406 [2020-12-22 11:45:17,621 INFO L226 Difference]: Without dead ends: 243 [2020-12-22 11:45:17,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:17,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-12-22 11:45:17,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2020-12-22 11:45:17,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-12-22 11:45:17,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 299 transitions. [2020-12-22 11:45:17,669 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 299 transitions. Word has length 40 [2020-12-22 11:45:17,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:17,669 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 299 transitions. [2020-12-22 11:45:17,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:45:17,670 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 299 transitions. [2020-12-22 11:45:17,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-22 11:45:17,674 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:17,674 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 11:45:17,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:45:17,675 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:17,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:17,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1776399483, now seen corresponding path program 1 times [2020-12-22 11:45:17,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:17,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781296749] [2020-12-22 11:45:17,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:18,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:18,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781296749] [2020-12-22 11:45:18,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:18,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:45:18,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110681896] [2020-12-22 11:45:18,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:45:18,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:18,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:45:18,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:18,171 INFO L87 Difference]: Start difference. First operand 243 states and 299 transitions. Second operand 5 states. [2020-12-22 11:45:18,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:18,465 INFO L93 Difference]: Finished difference Result 521 states and 626 transitions. [2020-12-22 11:45:18,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:45:18,466 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-12-22 11:45:18,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:18,468 INFO L225 Difference]: With dead ends: 521 [2020-12-22 11:45:18,468 INFO L226 Difference]: Without dead ends: 326 [2020-12-22 11:45:18,469 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 11:45:18,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-12-22 11:45:18,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 243. [2020-12-22 11:45:18,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-12-22 11:45:18,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 297 transitions. [2020-12-22 11:45:18,531 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 297 transitions. Word has length 44 [2020-12-22 11:45:18,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:18,531 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 297 transitions. [2020-12-22 11:45:18,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:45:18,531 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 297 transitions. [2020-12-22 11:45:18,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 11:45:18,533 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:18,534 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] [2020-12-22 11:45:18,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:45:18,534 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:18,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:18,535 INFO L82 PathProgramCache]: Analyzing trace with hash 421587873, now seen corresponding path program 1 times [2020-12-22 11:45:18,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:18,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144905104] [2020-12-22 11:45:18,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:18,699 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:18,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2023402840] [2020-12-22 11:45:18,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:20,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 2577 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-22 11:45:20,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:20,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:20,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144905104] [2020-12-22 11:45:20,345 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:20,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023402840] [2020-12-22 11:45:20,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:20,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:45:20,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014491140] [2020-12-22 11:45:20,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:45:20,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:20,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:45:20,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:45:20,348 INFO L87 Difference]: Start difference. First operand 243 states and 297 transitions. Second operand 6 states. [2020-12-22 11:45:20,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:20,607 INFO L93 Difference]: Finished difference Result 407 states and 492 transitions. [2020-12-22 11:45:20,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:45:20,607 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-12-22 11:45:20,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:20,609 INFO L225 Difference]: With dead ends: 407 [2020-12-22 11:45:20,610 INFO L226 Difference]: Without dead ends: 243 [2020-12-22 11:45:20,610 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 47 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 11:45:20,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-12-22 11:45:20,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2020-12-22 11:45:20,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-12-22 11:45:20,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 295 transitions. [2020-12-22 11:45:20,626 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 295 transitions. Word has length 52 [2020-12-22 11:45:20,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:20,627 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 295 transitions. [2020-12-22 11:45:20,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:45:20,627 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 295 transitions. [2020-12-22 11:45:20,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 11:45:20,628 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:20,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:45:20,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:20,844 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:20,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:20,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1861026450, now seen corresponding path program 1 times [2020-12-22 11:45:20,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:20,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350758688] [2020-12-22 11:45:20,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:21,009 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:21,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1226655805] [2020-12-22 11:45:21,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:22,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 2627 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 11:45:22,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:22,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:45:22,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350758688] [2020-12-22 11:45:22,550 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:22,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226655805] [2020-12-22 11:45:22,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:22,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:45:22,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114027418] [2020-12-22 11:45:22,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:45:22,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:22,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:45:22,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:45:22,553 INFO L87 Difference]: Start difference. First operand 243 states and 295 transitions. Second operand 7 states. [2020-12-22 11:45:23,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:23,009 INFO L93 Difference]: Finished difference Result 423 states and 512 transitions. [2020-12-22 11:45:23,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:45:23,010 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-12-22 11:45:23,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:23,012 INFO L225 Difference]: With dead ends: 423 [2020-12-22 11:45:23,012 INFO L226 Difference]: Without dead ends: 243 [2020-12-22 11:45:23,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 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 11:45:23,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-12-22 11:45:23,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2020-12-22 11:45:23,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-12-22 11:45:23,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 293 transitions. [2020-12-22 11:45:23,024 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 293 transitions. Word has length 64 [2020-12-22 11:45:23,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:23,025 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 293 transitions. [2020-12-22 11:45:23,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:45:23,025 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 293 transitions. [2020-12-22 11:45:23,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 11:45:23,026 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:23,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:45:23,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:23,244 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:23,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:23,245 INFO L82 PathProgramCache]: Analyzing trace with hash 219242486, now seen corresponding path program 1 times [2020-12-22 11:45:23,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:23,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680331849] [2020-12-22 11:45:23,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:23,414 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:23,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959462575] [2020-12-22 11:45:23,421 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 11:45:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:24,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 2722 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 11:45:24,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:24,980 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 11:45:24,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680331849] [2020-12-22 11:45:24,981 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:24,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959462575] [2020-12-22 11:45:24,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:24,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:45:24,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564295282] [2020-12-22 11:45:24,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:45:24,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:24,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:45:24,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:45:24,984 INFO L87 Difference]: Start difference. First operand 243 states and 293 transitions. Second operand 6 states. [2020-12-22 11:45:25,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:25,319 INFO L93 Difference]: Finished difference Result 376 states and 448 transitions. [2020-12-22 11:45:25,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:45:25,319 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2020-12-22 11:45:25,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:25,325 INFO L225 Difference]: With dead ends: 376 [2020-12-22 11:45:25,326 INFO L226 Difference]: Without dead ends: 243 [2020-12-22 11:45:25,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:45:25,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-12-22 11:45:25,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2020-12-22 11:45:25,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-12-22 11:45:25,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 291 transitions. [2020-12-22 11:45:25,341 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 291 transitions. Word has length 72 [2020-12-22 11:45:25,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:25,344 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 291 transitions. [2020-12-22 11:45:25,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:45:25,344 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 291 transitions. [2020-12-22 11:45:25,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 11:45:25,345 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:25,346 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] [2020-12-22 11:45:25,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:25,560 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:25,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:25,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1338123328, now seen corresponding path program 1 times [2020-12-22 11:45:25,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:25,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338212273] [2020-12-22 11:45:25,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:25,752 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:25,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [969763318] [2020-12-22 11:45:25,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:27,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 2907 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 11:45:27,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:27,338 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 11:45:27,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338212273] [2020-12-22 11:45:27,338 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:27,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969763318] [2020-12-22 11:45:27,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:27,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:45:27,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727267265] [2020-12-22 11:45:27,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:45:27,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:27,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:45:27,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:45:27,341 INFO L87 Difference]: Start difference. First operand 243 states and 291 transitions. Second operand 4 states. [2020-12-22 11:45:27,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:27,630 INFO L93 Difference]: Finished difference Result 469 states and 567 transitions. [2020-12-22 11:45:27,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:45:27,631 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-12-22 11:45:27,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:27,634 INFO L225 Difference]: With dead ends: 469 [2020-12-22 11:45:27,634 INFO L226 Difference]: Without dead ends: 273 [2020-12-22 11:45:27,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:27,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-12-22 11:45:27,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 255. [2020-12-22 11:45:27,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-12-22 11:45:27,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 303 transitions. [2020-12-22 11:45:27,648 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 303 transitions. Word has length 88 [2020-12-22 11:45:27,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:27,648 INFO L481 AbstractCegarLoop]: Abstraction has 255 states and 303 transitions. [2020-12-22 11:45:27,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:45:27,648 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 303 transitions. [2020-12-22 11:45:27,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 11:45:27,649 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:27,650 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] [2020-12-22 11:45:27,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:27,858 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:27,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:27,860 INFO L82 PathProgramCache]: Analyzing trace with hash -436884034, now seen corresponding path program 1 times [2020-12-22 11:45:27,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:27,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489035288] [2020-12-22 11:45:27,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:28,016 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:28,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [797744398] [2020-12-22 11:45:28,017 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 11:45:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:29,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 2912 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-22 11:45:29,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:29,588 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 11:45:29,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489035288] [2020-12-22 11:45:29,588 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:29,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797744398] [2020-12-22 11:45:29,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:29,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:45:29,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389636797] [2020-12-22 11:45:29,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:45:29,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:29,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:45:29,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:45:29,591 INFO L87 Difference]: Start difference. First operand 255 states and 303 transitions. Second operand 6 states. [2020-12-22 11:45:29,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:29,944 INFO L93 Difference]: Finished difference Result 601 states and 702 transitions. [2020-12-22 11:45:29,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:45:29,944 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2020-12-22 11:45:29,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:29,947 INFO L225 Difference]: With dead ends: 601 [2020-12-22 11:45:29,947 INFO L226 Difference]: Without dead ends: 428 [2020-12-22 11:45:29,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 83 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 11:45:29,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-12-22 11:45:29,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 267. [2020-12-22 11:45:29,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-12-22 11:45:29,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 319 transitions. [2020-12-22 11:45:29,962 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 319 transitions. Word has length 88 [2020-12-22 11:45:29,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:29,962 INFO L481 AbstractCegarLoop]: Abstraction has 267 states and 319 transitions. [2020-12-22 11:45:29,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:45:29,962 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 319 transitions. [2020-12-22 11:45:29,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 11:45:29,963 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:29,963 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] [2020-12-22 11:45:30,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:30,177 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:30,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:30,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1612503808, now seen corresponding path program 1 times [2020-12-22 11:45:30,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:30,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912260916] [2020-12-22 11:45:30,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:30,298 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:30,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [940789142] [2020-12-22 11:45:30,299 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 11:45:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:31,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 2917 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 11:45:31,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:31,656 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:45:31,762 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 11:45:31,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912260916] [2020-12-22 11:45:31,763 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:31,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940789142] [2020-12-22 11:45:31,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:31,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:45:31,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703185082] [2020-12-22 11:45:31,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:45:31,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:31,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:45:31,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:45:31,765 INFO L87 Difference]: Start difference. First operand 267 states and 319 transitions. Second operand 6 states. [2020-12-22 11:45:39,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:39,282 INFO L93 Difference]: Finished difference Result 633 states and 750 transitions. [2020-12-22 11:45:39,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:45:39,284 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2020-12-22 11:45:39,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:39,287 INFO L225 Difference]: With dead ends: 633 [2020-12-22 11:45:39,287 INFO L226 Difference]: Without dead ends: 445 [2020-12-22 11:45:39,288 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 83 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 11:45:39,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-12-22 11:45:39,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 275. [2020-12-22 11:45:39,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-12-22 11:45:39,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 329 transitions. [2020-12-22 11:45:39,306 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 329 transitions. Word has length 88 [2020-12-22 11:45:39,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:39,307 INFO L481 AbstractCegarLoop]: Abstraction has 275 states and 329 transitions. [2020-12-22 11:45:39,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:45:39,307 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 329 transitions. [2020-12-22 11:45:39,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 11:45:39,308 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:39,308 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] [2020-12-22 11:45:39,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:39,524 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:39,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:39,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1860650302, now seen corresponding path program 1 times [2020-12-22 11:45:39,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:39,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712375553] [2020-12-22 11:45:39,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:39,653 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:39,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [763407688] [2020-12-22 11:45:39,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:41,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 2914 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 11:45:41,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:41,132 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 11:45:41,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712375553] [2020-12-22 11:45:41,133 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:41,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763407688] [2020-12-22 11:45:41,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:41,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:45:41,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965464112] [2020-12-22 11:45:41,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:45:41,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:41,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:45:41,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:45:41,135 INFO L87 Difference]: Start difference. First operand 275 states and 329 transitions. Second operand 4 states. [2020-12-22 11:45:41,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:41,247 INFO L93 Difference]: Finished difference Result 483 states and 574 transitions. [2020-12-22 11:45:41,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:45:41,248 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-12-22 11:45:41,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:41,250 INFO L225 Difference]: With dead ends: 483 [2020-12-22 11:45:41,250 INFO L226 Difference]: Without dead ends: 291 [2020-12-22 11:45:41,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:41,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-12-22 11:45:41,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 283. [2020-12-22 11:45:41,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-12-22 11:45:41,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 337 transitions. [2020-12-22 11:45:41,266 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 337 transitions. Word has length 88 [2020-12-22 11:45:41,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:41,266 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 337 transitions. [2020-12-22 11:45:41,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:45:41,267 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 337 transitions. [2020-12-22 11:45:41,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 11:45:41,267 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:41,268 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] [2020-12-22 11:45:41,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-22 11:45:41,482 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:41,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:41,483 INFO L82 PathProgramCache]: Analyzing trace with hash 488843004, now seen corresponding path program 1 times [2020-12-22 11:45:41,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:41,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682730300] [2020-12-22 11:45:41,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:41,602 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:41,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [29301319] [2020-12-22 11:45:41,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:43,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 2909 conjuncts, 44 conjunts are in the unsatisfiable core [2020-12-22 11:45:43,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:43,607 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 11:45:43,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682730300] [2020-12-22 11:45:43,607 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:43,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29301319] [2020-12-22 11:45:43,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:43,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 11:45:43,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540629701] [2020-12-22 11:45:43,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:45:43,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:43,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:45:43,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:45:43,610 INFO L87 Difference]: Start difference. First operand 283 states and 337 transitions. Second operand 9 states. [2020-12-22 11:45:44,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:44,960 INFO L93 Difference]: Finished difference Result 677 states and 802 transitions. [2020-12-22 11:45:44,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 11:45:44,961 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-12-22 11:45:44,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:44,965 INFO L225 Difference]: With dead ends: 677 [2020-12-22 11:45:44,965 INFO L226 Difference]: Without dead ends: 473 [2020-12-22 11:45:44,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2020-12-22 11:45:44,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-12-22 11:45:44,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 309. [2020-12-22 11:45:44,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-12-22 11:45:44,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 369 transitions. [2020-12-22 11:45:44,984 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 369 transitions. Word has length 88 [2020-12-22 11:45:44,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:44,984 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 369 transitions. [2020-12-22 11:45:44,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:45:44,985 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 369 transitions. [2020-12-22 11:45:44,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 11:45:44,986 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:44,986 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] [2020-12-22 11:45:45,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-22 11:45:45,202 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:45,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:45,203 INFO L82 PathProgramCache]: Analyzing trace with hash -754190786, now seen corresponding path program 1 times [2020-12-22 11:45:45,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:45,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571344860] [2020-12-22 11:45:45,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:45,314 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:45,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [376203168] [2020-12-22 11:45:45,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:46,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 2914 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 11:45:46,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:46,814 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 11:45:46,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571344860] [2020-12-22 11:45:46,814 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:46,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376203168] [2020-12-22 11:45:46,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:46,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:45:46,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517463368] [2020-12-22 11:45:46,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:45:46,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:46,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:45:46,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:45:46,817 INFO L87 Difference]: Start difference. First operand 309 states and 369 transitions. Second operand 4 states. [2020-12-22 11:45:46,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:46,920 INFO L93 Difference]: Finished difference Result 516 states and 610 transitions. [2020-12-22 11:45:46,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:45:46,921 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-12-22 11:45:46,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:46,923 INFO L225 Difference]: With dead ends: 516 [2020-12-22 11:45:46,924 INFO L226 Difference]: Without dead ends: 301 [2020-12-22 11:45:46,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:46,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-12-22 11:45:46,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 293. [2020-12-22 11:45:46,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-12-22 11:45:46,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 345 transitions. [2020-12-22 11:45:46,942 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 345 transitions. Word has length 88 [2020-12-22 11:45:46,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:46,943 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 345 transitions. [2020-12-22 11:45:46,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:45:46,943 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 345 transitions. [2020-12-22 11:45:46,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 11:45:46,944 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:46,944 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] [2020-12-22 11:45:47,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:47,159 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:47,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:47,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1685030492, now seen corresponding path program 1 times [2020-12-22 11:45:47,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:47,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085247863] [2020-12-22 11:45:47,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:47,269 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:47,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [37017806] [2020-12-22 11:45:47,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:48,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 2909 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 11:45:48,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:48,787 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 11:45:48,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085247863] [2020-12-22 11:45:48,787 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:48,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37017806] [2020-12-22 11:45:48,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:48,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:45:48,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890536979] [2020-12-22 11:45:48,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:45:48,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:48,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:45:48,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:48,790 INFO L87 Difference]: Start difference. First operand 293 states and 345 transitions. Second operand 5 states. [2020-12-22 11:45:54,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:54,474 INFO L93 Difference]: Finished difference Result 664 states and 772 transitions. [2020-12-22 11:45:54,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:45:54,476 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 90 [2020-12-22 11:45:54,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:54,478 INFO L225 Difference]: With dead ends: 664 [2020-12-22 11:45:54,479 INFO L226 Difference]: Without dead ends: 419 [2020-12-22 11:45:54,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:45:54,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-12-22 11:45:54,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 297. [2020-12-22 11:45:54,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-12-22 11:45:54,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 347 transitions. [2020-12-22 11:45:54,508 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 347 transitions. Word has length 90 [2020-12-22 11:45:54,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:54,509 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 347 transitions. [2020-12-22 11:45:54,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:45:54,509 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 347 transitions. [2020-12-22 11:45:54,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 11:45:54,511 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:54,511 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] [2020-12-22 11:45:54,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:54,725 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:54,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:54,727 INFO L82 PathProgramCache]: Analyzing trace with hash 2128856546, now seen corresponding path program 1 times [2020-12-22 11:45:54,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:54,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958123979] [2020-12-22 11:45:54,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:54,881 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:54,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [104185580] [2020-12-22 11:45:54,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:56,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 2914 conjuncts, 85 conjunts are in the unsatisfiable core [2020-12-22 11:45:56,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:56,927 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 11:45:56,929 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:45:56,943 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:45:56,944 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:45:56,945 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 11:45:57,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:45:57,225 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 11:45:57,227 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:45:57,259 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:45:57,260 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:45:57,261 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:26 [2020-12-22 11:45:57,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:45:57,341 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 11:45:57,344 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:45:57,366 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:45:57,367 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:45:57,367 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:20 [2020-12-22 11:45:57,492 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:45:57,492 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 11:45:57,495 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:45:57,499 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:45:57,520 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:45:57,520 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:45:57,521 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2020-12-22 11:45:57,598 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 11:45:57,602 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:45:57,635 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:45:57,647 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 11:45:57,648 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:33, output treesize:29 [2020-12-22 11:45:58,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:45:58,354 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 11:45:58,358 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:45:58,391 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:45:58,399 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 11:45:58,399 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:32, output treesize:28 [2020-12-22 11:46:00,773 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 11:46:00,780 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:46:00,783 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:00,783 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:46:00,784 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:1 [2020-12-22 11:46:00,879 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 11:46:00,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958123979] [2020-12-22 11:46:00,880 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:46:00,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104185580] [2020-12-22 11:46:00,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:46:00,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-12-22 11:46:00,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864308638] [2020-12-22 11:46:00,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-22 11:46:00,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:46:00,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-22 11:46:00,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=194, Unknown=1, NotChecked=0, Total=240 [2020-12-22 11:46:00,882 INFO L87 Difference]: Start difference. First operand 297 states and 347 transitions. Second operand 16 states. [2020-12-22 11:46:20,258 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2020-12-22 11:46:20,522 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2020-12-22 11:46:23,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:46:23,854 INFO L93 Difference]: Finished difference Result 654 states and 767 transitions. [2020-12-22 11:46:23,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 11:46:23,856 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 90 [2020-12-22 11:46:23,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:46:23,858 INFO L225 Difference]: With dead ends: 654 [2020-12-22 11:46:23,859 INFO L226 Difference]: Without dead ends: 429 [2020-12-22 11:46:23,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=102, Invalid=403, Unknown=1, NotChecked=0, Total=506 [2020-12-22 11:46:23,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-12-22 11:46:23,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 334. [2020-12-22 11:46:23,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-12-22 11:46:23,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 391 transitions. [2020-12-22 11:46:23,882 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 391 transitions. Word has length 90 [2020-12-22 11:46:23,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:46:23,883 INFO L481 AbstractCegarLoop]: Abstraction has 334 states and 391 transitions. [2020-12-22 11:46:23,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-22 11:46:23,883 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 391 transitions. [2020-12-22 11:46:23,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-22 11:46:23,884 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:46:23,884 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] [2020-12-22 11:46:24,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-22 11:46:24,099 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:46:24,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:46:24,100 INFO L82 PathProgramCache]: Analyzing trace with hash 408231422, now seen corresponding path program 1 times [2020-12-22 11:46:24,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:46:24,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843740728] [2020-12-22 11:46:24,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:46:24,217 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:46:24,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [87404438] [2020-12-22 11:46:24,218 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