/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_size_harness.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:45:29,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:45:29,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:45:29,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:45:29,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:45:29,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:45:29,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:45:29,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:45:29,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:45:29,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:45:29,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:45:29,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:45:29,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:45:29,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:45:29,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:45:29,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:45:29,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:45:29,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:45:29,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:45:29,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:45:29,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:45:29,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:45:29,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:45:29,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:45:29,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:45:29,766 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:45:29,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:45:29,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:45:29,768 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:45:29,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:45:29,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:45:29,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:45:29,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:45:29,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:45:29,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:45:29,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:45:29,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:45:29,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:45:29,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:45:29,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:45:29,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:45:29,784 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:45:29,812 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:45:29,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:45:29,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:45:29,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:45:29,814 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:45:29,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:45:29,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:45:29,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:45:29,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:45:29,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:45:29,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:45:29,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:45:29,817 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:45:29,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:45:29,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:45:29,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:45:29,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:45:29,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:45:29,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:45:29,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:45:29,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:45:29,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:45:29,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:45:29,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:45:29,820 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:45:29,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:45:30,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:45:30,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:45:30,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:45:30,279 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:45:30,279 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:45:30,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2020-12-22 11:45:30,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab1594c26/d71338e7413d4d87afa8072643974050/FLAG64ed1ebaf [2020-12-22 11:45:31,436 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:45:31,437 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2020-12-22 11:45:31,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab1594c26/d71338e7413d4d87afa8072643974050/FLAG64ed1ebaf [2020-12-22 11:45:31,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab1594c26/d71338e7413d4d87afa8072643974050 [2020-12-22 11:45:31,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:45:31,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:45:31,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:45:31,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:45:31,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:45:31,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:45:31" (1/1) ... [2020-12-22 11:45:31,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e7e04d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:31, skipping insertion in model container [2020-12-22 11:45:31,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:45:31" (1/1) ... [2020-12-22 11:45:31,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:45:32,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:45:32,316 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_size_harness.i[4497,4510] [2020-12-22 11:45:32,324 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_size_harness.i[4557,4570] [2020-12-22 11:45:32,347 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-22 11:45:32,353 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-22 11:45:33,371 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-22 11:45:33,458 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:33,459 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:33,459 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:33,460 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:33,461 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:33,474 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:33,475 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:33,476 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:33,477 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:33,869 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-22 11:45:33,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-22 11:45:33,871 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-22 11:45:33,878 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-22 11:45:33,880 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-22 11:45:33,881 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-22 11:45:33,882 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-22 11:45:33,883 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-22 11:45:33,883 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-22 11:45:33,884 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-22 11:45:34,045 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:34,046 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:34,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:45:34,129 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:45:34,147 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_size_harness.i[4497,4510] [2020-12-22 11:45:34,147 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_size_harness.i[4557,4570] [2020-12-22 11:45:34,149 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-22 11:45:34,150 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-22 11:45:34,181 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-22 11:45:34,195 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:34,195 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:34,196 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:34,196 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:34,197 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:34,205 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:34,205 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:34,207 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:34,207 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:34,242 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-22 11:45:34,243 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-22 11:45:34,243 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-22 11:45:34,244 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-22 11:45:34,245 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-22 11:45:34,245 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-22 11:45:34,246 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-22 11:45:34,247 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-22 11:45:34,247 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-22 11:45:34,248 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-22 11:45:34,300 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:34,302 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:45:34,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:45:35,417 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:45:35,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:35 WrapperNode [2020-12-22 11:45:35,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:45:35,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:45:35,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:45:35,419 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:45:35,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:35" (1/1) ... [2020-12-22 11:45:35,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:35" (1/1) ... [2020-12-22 11:45:35,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:45:35,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:45:35,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:45:35,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:45:35,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:35" (1/1) ... [2020-12-22 11:45:35,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:35" (1/1) ... [2020-12-22 11:45:35,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:35" (1/1) ... [2020-12-22 11:45:35,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:35" (1/1) ... [2020-12-22 11:45:35,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:35" (1/1) ... [2020-12-22 11:45:35,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:35" (1/1) ... [2020-12-22 11:45:35,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:35" (1/1) ... [2020-12-22 11:45:35,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:45:35,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:45:35,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:45:35,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:45:35,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:35" (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 11:45:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:45:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 11:45:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 11:45:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 11:45:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:45:35,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:45:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:45:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2020-12-22 11:45:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 11:45:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 11:45:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:45:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:45:46,140 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:45:46,141 INFO L299 CfgBuilder]: Removed 188 assume(true) statements. [2020-12-22 11:45:46,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:45:46 BoogieIcfgContainer [2020-12-22 11:45:46,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:45:46,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:45:46,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:45:46,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:45:46,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:45:31" (1/3) ... [2020-12-22 11:45:46,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3627a725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:45:46, skipping insertion in model container [2020-12-22 11:45:46,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:45:35" (2/3) ... [2020-12-22 11:45:46,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3627a725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:45:46, skipping insertion in model container [2020-12-22 11:45:46,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:45:46" (3/3) ... [2020-12-22 11:45:46,152 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_size_harness.i [2020-12-22 11:45:46,159 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:45:46,165 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 14 error locations. [2020-12-22 11:45:46,184 INFO L253 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2020-12-22 11:45:46,213 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:45:46,213 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:45:46,214 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:45:46,214 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:45:46,214 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:45:46,214 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:45:46,214 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:45:46,214 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:45:46,241 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-12-22 11:45:46,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-22 11:45:46,250 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:46,251 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 11:45:46,252 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.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:46,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:46,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1385932008, now seen corresponding path program 1 times [2020-12-22 11:45:46,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:46,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862159961] [2020-12-22 11:45:46,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:47,143 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 11:45:47,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862159961] [2020-12-22 11:45:47,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:47,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:45:47,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490016434] [2020-12-22 11:45:47,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:45:47,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:47,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:45:47,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:45:47,173 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 2 states. [2020-12-22 11:45:47,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:47,258 INFO L93 Difference]: Finished difference Result 486 states and 661 transitions. [2020-12-22 11:45:47,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:45:47,259 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 40 [2020-12-22 11:45:47,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:47,272 INFO L225 Difference]: With dead ends: 486 [2020-12-22 11:45:47,273 INFO L226 Difference]: Without dead ends: 239 [2020-12-22 11:45:47,277 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 11:45:47,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-12-22 11:45:47,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2020-12-22 11:45:47,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-12-22 11:45:47,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 298 transitions. [2020-12-22 11:45:47,335 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 298 transitions. Word has length 40 [2020-12-22 11:45:47,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:47,336 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 298 transitions. [2020-12-22 11:45:47,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:45:47,336 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 298 transitions. [2020-12-22 11:45:47,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-22 11:45:47,338 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:47,338 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 11:45:47,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:45:47,339 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.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:47,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:47,340 INFO L82 PathProgramCache]: Analyzing trace with hash 577264856, now seen corresponding path program 1 times [2020-12-22 11:45:47,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:47,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924374718] [2020-12-22 11:45:47,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:47,727 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 11:45:47,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924374718] [2020-12-22 11:45:47,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:47,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:45:47,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542759466] [2020-12-22 11:45:47,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:45:47,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:47,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:45:47,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:45:47,731 INFO L87 Difference]: Start difference. First operand 239 states and 298 transitions. Second operand 4 states. [2020-12-22 11:45:47,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:47,816 INFO L93 Difference]: Finished difference Result 398 states and 491 transitions. [2020-12-22 11:45:47,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:45:47,817 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-12-22 11:45:47,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:47,820 INFO L225 Difference]: With dead ends: 398 [2020-12-22 11:45:47,820 INFO L226 Difference]: Without dead ends: 239 [2020-12-22 11:45:47,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:45:47,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-12-22 11:45:47,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2020-12-22 11:45:47,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-12-22 11:45:47,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 296 transitions. [2020-12-22 11:45:47,845 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 296 transitions. Word has length 40 [2020-12-22 11:45:47,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:47,846 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 296 transitions. [2020-12-22 11:45:47,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:45:47,846 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 296 transitions. [2020-12-22 11:45:47,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-22 11:45:47,848 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:47,848 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 11:45:47,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:45:47,849 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.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:47,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:47,850 INFO L82 PathProgramCache]: Analyzing trace with hash -252060921, now seen corresponding path program 1 times [2020-12-22 11:45:47,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:47,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842437106] [2020-12-22 11:45:47,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:48,180 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 11:45:48,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842437106] [2020-12-22 11:45:48,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:48,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:45:48,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411351342] [2020-12-22 11:45:48,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:45:48,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:48,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:45:48,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:48,183 INFO L87 Difference]: Start difference. First operand 239 states and 296 transitions. Second operand 5 states. [2020-12-22 11:45:48,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:48,502 INFO L93 Difference]: Finished difference Result 509 states and 617 transitions. [2020-12-22 11:45:48,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:45:48,503 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-12-22 11:45:48,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:48,505 INFO L225 Difference]: With dead ends: 509 [2020-12-22 11:45:48,506 INFO L226 Difference]: Without dead ends: 318 [2020-12-22 11:45:48,507 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 11:45:48,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-12-22 11:45:48,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 239. [2020-12-22 11:45:48,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-12-22 11:45:48,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 294 transitions. [2020-12-22 11:45:48,525 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 294 transitions. Word has length 44 [2020-12-22 11:45:48,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:48,526 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 294 transitions. [2020-12-22 11:45:48,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:45:48,526 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 294 transitions. [2020-12-22 11:45:48,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 11:45:48,528 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:48,528 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 11:45:48,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:45:48,529 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.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:48,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:48,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1945926435, now seen corresponding path program 1 times [2020-12-22 11:45:48,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:48,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122858346] [2020-12-22 11:45:48,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:48,675 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:48,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [913451838] [2020-12-22 11:45:48,676 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 11:45:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:50,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 2572 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-22 11:45:50,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:50,706 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 11:45:50,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122858346] [2020-12-22 11:45:50,707 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:50,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913451838] [2020-12-22 11:45:50,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:50,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:45:50,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073552727] [2020-12-22 11:45:50,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:45:50,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:50,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:45:50,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:45:50,709 INFO L87 Difference]: Start difference. First operand 239 states and 294 transitions. Second operand 6 states. [2020-12-22 11:45:50,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:50,937 INFO L93 Difference]: Finished difference Result 399 states and 486 transitions. [2020-12-22 11:45:50,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:45:50,938 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-12-22 11:45:50,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:50,940 INFO L225 Difference]: With dead ends: 399 [2020-12-22 11:45:50,940 INFO L226 Difference]: Without dead ends: 239 [2020-12-22 11:45:50,941 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 11:45:50,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-12-22 11:45:50,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2020-12-22 11:45:50,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-12-22 11:45:50,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 292 transitions. [2020-12-22 11:45:50,955 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 292 transitions. Word has length 52 [2020-12-22 11:45:50,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:50,955 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 292 transitions. [2020-12-22 11:45:50,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:45:50,955 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 292 transitions. [2020-12-22 11:45:50,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 11:45:50,957 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:50,958 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 11:45:51,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:51,172 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.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:51,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:51,174 INFO L82 PathProgramCache]: Analyzing trace with hash -909602284, now seen corresponding path program 1 times [2020-12-22 11:45:51,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:51,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98995244] [2020-12-22 11:45:51,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:51,328 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:51,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [913269513] [2020-12-22 11:45:51,329 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 11:45:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:53,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 2622 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 11:45:53,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:53,271 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 11:45:53,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98995244] [2020-12-22 11:45:53,273 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:53,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913269513] [2020-12-22 11:45:53,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:53,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:45:53,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124215394] [2020-12-22 11:45:53,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:45:53,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:53,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:45:53,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:45:53,282 INFO L87 Difference]: Start difference. First operand 239 states and 292 transitions. Second operand 7 states. [2020-12-22 11:45:53,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:53,745 INFO L93 Difference]: Finished difference Result 415 states and 506 transitions. [2020-12-22 11:45:53,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:45:53,746 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-12-22 11:45:53,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:53,748 INFO L225 Difference]: With dead ends: 415 [2020-12-22 11:45:53,748 INFO L226 Difference]: Without dead ends: 239 [2020-12-22 11:45:53,749 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 11:45:53,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-12-22 11:45:53,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2020-12-22 11:45:53,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-12-22 11:45:53,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 290 transitions. [2020-12-22 11:45:53,762 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 290 transitions. Word has length 64 [2020-12-22 11:45:53,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:53,762 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 290 transitions. [2020-12-22 11:45:53,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:45:53,762 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 290 transitions. [2020-12-22 11:45:53,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 11:45:53,764 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:53,765 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 11:45:53,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:53,979 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.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:53,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:53,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1743581048, now seen corresponding path program 1 times [2020-12-22 11:45:53,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:53,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515776017] [2020-12-22 11:45:53,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:54,095 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:54,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [457247463] [2020-12-22 11:45:54,096 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 11:45:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:56,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 2717 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 11:45:56,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:56,200 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 11:45:56,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515776017] [2020-12-22 11:45:56,201 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:56,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457247463] [2020-12-22 11:45:56,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:56,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:45:56,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025770538] [2020-12-22 11:45:56,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:45:56,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:56,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:45:56,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:45:56,203 INFO L87 Difference]: Start difference. First operand 239 states and 290 transitions. Second operand 5 states. [2020-12-22 11:45:56,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:56,473 INFO L93 Difference]: Finished difference Result 368 states and 441 transitions. [2020-12-22 11:45:56,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:45:56,474 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2020-12-22 11:45:56,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:56,476 INFO L225 Difference]: With dead ends: 368 [2020-12-22 11:45:56,476 INFO L226 Difference]: Without dead ends: 239 [2020-12-22 11:45:56,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 68 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 11:45:56,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-12-22 11:45:56,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2020-12-22 11:45:56,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-12-22 11:45:56,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 288 transitions. [2020-12-22 11:45:56,488 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 288 transitions. Word has length 72 [2020-12-22 11:45:56,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:56,488 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 288 transitions. [2020-12-22 11:45:56,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:45:56,489 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 288 transitions. [2020-12-22 11:45:56,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 11:45:56,490 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:56,490 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 11:45:56,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:56,704 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.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:56,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:56,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1843556290, now seen corresponding path program 1 times [2020-12-22 11:45:56,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:56,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630600756] [2020-12-22 11:45:56,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:56,830 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:56,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1614109422] [2020-12-22 11:45:56,831 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 11:45:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:45:58,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 2902 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 11:45:58,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:45:58,890 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 11:45:58,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630600756] [2020-12-22 11:45:58,891 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:45:58,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614109422] [2020-12-22 11:45:58,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:45:58,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:45:58,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132641988] [2020-12-22 11:45:58,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:45:58,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:45:58,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:45:58,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:45:58,893 INFO L87 Difference]: Start difference. First operand 239 states and 288 transitions. Second operand 4 states. [2020-12-22 11:45:59,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:45:59,185 INFO L93 Difference]: Finished difference Result 461 states and 561 transitions. [2020-12-22 11:45:59,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:45:59,186 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-12-22 11:45:59,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:45:59,188 INFO L225 Difference]: With dead ends: 461 [2020-12-22 11:45:59,188 INFO L226 Difference]: Without dead ends: 269 [2020-12-22 11:45:59,189 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 11:45:59,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-12-22 11:45:59,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 251. [2020-12-22 11:45:59,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-12-22 11:45:59,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 300 transitions. [2020-12-22 11:45:59,201 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 300 transitions. Word has length 88 [2020-12-22 11:45:59,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:45:59,202 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 300 transitions. [2020-12-22 11:45:59,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:45:59,202 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 300 transitions. [2020-12-22 11:45:59,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 11:45:59,203 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:45:59,203 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 11:45:59,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:45:59,417 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.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:45:59,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:45:59,419 INFO L82 PathProgramCache]: Analyzing trace with hash 68548928, now seen corresponding path program 1 times [2020-12-22 11:45:59,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:45:59,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952940125] [2020-12-22 11:45:59,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:45:59,591 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:45:59,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1464425520] [2020-12-22 11:45:59,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:46:01,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 2907 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-22 11:46:01,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:46:01,705 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 11:46:01,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952940125] [2020-12-22 11:46:01,705 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:46:01,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464425520] [2020-12-22 11:46:01,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:46:01,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:46:01,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090283763] [2020-12-22 11:46:01,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:46:01,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:46:01,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:46:01,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:46:01,708 INFO L87 Difference]: Start difference. First operand 251 states and 300 transitions. Second operand 6 states. [2020-12-22 11:46:02,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:46:02,088 INFO L93 Difference]: Finished difference Result 589 states and 693 transitions. [2020-12-22 11:46:02,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:46:02,089 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2020-12-22 11:46:02,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:46:02,091 INFO L225 Difference]: With dead ends: 589 [2020-12-22 11:46:02,092 INFO L226 Difference]: Without dead ends: 420 [2020-12-22 11:46:02,092 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 11:46:02,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-12-22 11:46:02,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 263. [2020-12-22 11:46:02,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-12-22 11:46:02,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 316 transitions. [2020-12-22 11:46:02,106 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 316 transitions. Word has length 88 [2020-12-22 11:46:02,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:46:02,106 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 316 transitions. [2020-12-22 11:46:02,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:46:02,106 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 316 transitions. [2020-12-22 11:46:02,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 11:46:02,107 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:46:02,107 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 11:46:02,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:02,321 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.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:46:02,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:46:02,322 INFO L82 PathProgramCache]: Analyzing trace with hash 2117936770, now seen corresponding path program 1 times [2020-12-22 11:46:02,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:46:02,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830115281] [2020-12-22 11:46:02,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:46:02,429 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:46:02,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [890919294] [2020-12-22 11:46:02,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:46:04,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 2912 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 11:46:04,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:46:04,362 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:46:04,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:46:04,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830115281] [2020-12-22 11:46:04,587 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:46:04,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890919294] [2020-12-22 11:46:04,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:46:04,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:46:04,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959471223] [2020-12-22 11:46:04,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:46:04,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:46:04,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:46:04,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:46:04,595 INFO L87 Difference]: Start difference. First operand 263 states and 316 transitions. Second operand 6 states. [2020-12-22 11:46:12,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:46:12,199 INFO L93 Difference]: Finished difference Result 621 states and 741 transitions. [2020-12-22 11:46:12,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:46:12,200 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2020-12-22 11:46:12,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:46:12,203 INFO L225 Difference]: With dead ends: 621 [2020-12-22 11:46:12,203 INFO L226 Difference]: Without dead ends: 437 [2020-12-22 11:46:12,204 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 11:46:12,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-12-22 11:46:12,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 271. [2020-12-22 11:46:12,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-12-22 11:46:12,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 326 transitions. [2020-12-22 11:46:12,222 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 326 transitions. Word has length 88 [2020-12-22 11:46:12,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:46:12,222 INFO L481 AbstractCegarLoop]: Abstraction has 271 states and 326 transitions. [2020-12-22 11:46:12,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:46:12,222 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 326 transitions. [2020-12-22 11:46:12,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 11:46:12,223 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:46:12,223 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 11:46:12,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:12,440 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.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:46:12,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:46:12,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1928884032, now seen corresponding path program 1 times [2020-12-22 11:46:12,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:46:12,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181143103] [2020-12-22 11:46:12,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:46:12,554 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:46:12,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [813208780] [2020-12-22 11:46:12,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:46:14,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 2909 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 11:46:14,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:46:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:46:14,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181143103] [2020-12-22 11:46:14,644 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:46:14,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813208780] [2020-12-22 11:46:14,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:46:14,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:46:14,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54189283] [2020-12-22 11:46:14,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:46:14,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:46:14,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:46:14,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:46:14,646 INFO L87 Difference]: Start difference. First operand 271 states and 326 transitions. Second operand 4 states. [2020-12-22 11:46:14,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:46:14,756 INFO L93 Difference]: Finished difference Result 475 states and 568 transitions. [2020-12-22 11:46:14,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:46:14,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-12-22 11:46:14,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:46:14,759 INFO L225 Difference]: With dead ends: 475 [2020-12-22 11:46:14,759 INFO L226 Difference]: Without dead ends: 287 [2020-12-22 11:46:14,760 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 11:46:14,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-12-22 11:46:14,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 279. [2020-12-22 11:46:14,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-12-22 11:46:14,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 334 transitions. [2020-12-22 11:46:14,773 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 334 transitions. Word has length 88 [2020-12-22 11:46:14,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:46:14,773 INFO L481 AbstractCegarLoop]: Abstraction has 279 states and 334 transitions. [2020-12-22 11:46:14,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:46:14,773 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 334 transitions. [2020-12-22 11:46:14,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 11:46:14,774 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:46:14,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:46:14,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-22 11:46:14,988 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.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:46:14,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:46:14,990 INFO L82 PathProgramCache]: Analyzing trace with hash 994275966, now seen corresponding path program 1 times [2020-12-22 11:46:14,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:46:14,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531699743] [2020-12-22 11:46:14,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:46:15,085 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:46:15,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2092754662] [2020-12-22 11:46:15,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:46:17,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 2904 conjuncts, 40 conjunts are in the unsatisfiable core [2020-12-22 11:46:17,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:46:17,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:46:17,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531699743] [2020-12-22 11:46:17,599 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:46:17,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092754662] [2020-12-22 11:46:17,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:46:17,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 11:46:17,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664648311] [2020-12-22 11:46:17,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:46:17,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:46:17,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:46:17,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:46:17,601 INFO L87 Difference]: Start difference. First operand 279 states and 334 transitions. Second operand 9 states. [2020-12-22 11:46:19,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:46:19,129 INFO L93 Difference]: Finished difference Result 665 states and 793 transitions. [2020-12-22 11:46:19,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 11:46:19,131 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-12-22 11:46:19,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:46:19,132 INFO L225 Difference]: With dead ends: 665 [2020-12-22 11:46:19,133 INFO L226 Difference]: Without dead ends: 465 [2020-12-22 11:46:19,133 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 11:46:19,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-12-22 11:46:19,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 305. [2020-12-22 11:46:19,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-12-22 11:46:19,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 366 transitions. [2020-12-22 11:46:19,152 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 366 transitions. Word has length 88 [2020-12-22 11:46:19,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:46:19,152 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 366 transitions. [2020-12-22 11:46:19,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:46:19,152 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 366 transitions. [2020-12-22 11:46:19,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 11:46:19,153 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:46:19,153 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 11:46:19,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-22 11:46:19,365 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.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:46:19,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:46:19,366 INFO L82 PathProgramCache]: Analyzing trace with hash -248757824, now seen corresponding path program 1 times [2020-12-22 11:46:19,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:46:19,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424139139] [2020-12-22 11:46:19,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:46:19,458 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:46:19,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [773879828] [2020-12-22 11:46:19,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:46:21,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 2909 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 11:46:21,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:46:21,523 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 11:46:21,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424139139] [2020-12-22 11:46:21,524 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:46:21,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773879828] [2020-12-22 11:46:21,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:46:21,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:46:21,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51198127] [2020-12-22 11:46:21,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:46:21,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:46:21,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:46:21,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:46:21,526 INFO L87 Difference]: Start difference. First operand 305 states and 366 transitions. Second operand 4 states. [2020-12-22 11:46:21,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:46:21,639 INFO L93 Difference]: Finished difference Result 508 states and 604 transitions. [2020-12-22 11:46:21,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:46:21,640 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-12-22 11:46:21,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:46:21,642 INFO L225 Difference]: With dead ends: 508 [2020-12-22 11:46:21,642 INFO L226 Difference]: Without dead ends: 297 [2020-12-22 11:46:21,643 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 11:46:21,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-12-22 11:46:21,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 289. [2020-12-22 11:46:21,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-12-22 11:46:21,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 342 transitions. [2020-12-22 11:46:21,657 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 342 transitions. Word has length 88 [2020-12-22 11:46:21,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:46:21,657 INFO L481 AbstractCegarLoop]: Abstraction has 289 states and 342 transitions. [2020-12-22 11:46:21,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:46:21,658 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 342 transitions. [2020-12-22 11:46:21,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 11:46:21,659 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:46:21,659 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 11:46:21,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:21,874 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.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:46:21,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:46:21,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1179597530, now seen corresponding path program 1 times [2020-12-22 11:46:21,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:46:21,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044173321] [2020-12-22 11:46:21,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:46:21,971 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:46:21,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [831457083] [2020-12-22 11:46:21,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:46:23,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 2904 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 11:46:23,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:46:24,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:46:24,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044173321] [2020-12-22 11:46:24,093 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:46:24,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831457083] [2020-12-22 11:46:24,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:46:24,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:46:24,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671538861] [2020-12-22 11:46:24,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:46:24,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:46:24,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:46:24,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:46:24,095 INFO L87 Difference]: Start difference. First operand 289 states and 342 transitions. Second operand 5 states. [2020-12-22 11:46:29,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:46:29,555 INFO L93 Difference]: Finished difference Result 652 states and 763 transitions. [2020-12-22 11:46:29,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:46:29,556 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 90 [2020-12-22 11:46:29,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:46:29,559 INFO L225 Difference]: With dead ends: 652 [2020-12-22 11:46:29,559 INFO L226 Difference]: Without dead ends: 411 [2020-12-22 11:46:29,560 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 11:46:29,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-12-22 11:46:29,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 293. [2020-12-22 11:46:29,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-12-22 11:46:29,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 344 transitions. [2020-12-22 11:46:29,580 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 344 transitions. Word has length 90 [2020-12-22 11:46:29,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:46:29,580 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 344 transitions. [2020-12-22 11:46:29,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:46:29,580 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 344 transitions. [2020-12-22 11:46:29,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 11:46:29,581 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:46:29,582 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 11:46:29,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:29,799 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.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:46:29,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:46:29,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1660677788, now seen corresponding path program 1 times [2020-12-22 11:46:29,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:46:29,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215450093] [2020-12-22 11:46:29,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:46:29,923 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:46:29,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [342640681] [2020-12-22 11:46:29,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:46:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:46:33,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 2909 conjuncts, 108 conjunts are in the unsatisfiable core [2020-12-22 11:46:33,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:46:33,297 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 11:46:33,299 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:46:33,316 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:33,317 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:46:33,317 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-12-22 11:46:33,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:46:33,582 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2020-12-22 11:46:33,584 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:46:33,611 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:33,612 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:46:33,612 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:26 [2020-12-22 11:46:33,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 11:46:33,680 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2020-12-22 11:46:33,683 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:46:33,702 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:33,703 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:46:33,704 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:20 [2020-12-22 11:46:34,021 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-12-22 11:46:34,023 INFO L348 Elim1Store]: treesize reduction 13, result has 83.5 percent of original size [2020-12-22 11:46:34,024 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 84 [2020-12-22 11:46:34,028 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 11:46:34,033 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:46:34,131 INFO L625 ElimStorePlain]: treesize reduction 8, result has 82.6 percent of original size [2020-12-22 11:46:34,134 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 11:46:34,135 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:46, output treesize:38 [2020-12-22 11:46:34,239 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-22 11:46:34,244 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:46:34,292 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:34,300 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-12-22 11:46:34,301 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:48, output treesize:44 [2020-12-22 11:46:36,794 WARN L197 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 35 [2020-12-22 11:46:36,955 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:36,956 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 55 [2020-12-22 11:46:36,962 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:46:37,065 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2020-12-22 11:46:37,066 INFO L625 ElimStorePlain]: treesize reduction 8, result has 84.6 percent of original size [2020-12-22 11:46:37,077 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2020-12-22 11:46:37,078 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:50, output treesize:44 [2020-12-22 11:46:37,479 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:37,479 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 53 [2020-12-22 11:46:37,482 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:46:37,536 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:37,543 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-12-22 11:46:37,543 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:52, output treesize:36 [2020-12-22 11:46:37,718 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-22 11:46:37,721 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:46:37,750 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:37,754 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 11:46:37,755 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:33, output treesize:29 [2020-12-22 11:46:39,897 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 11:46:39,903 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 11:46:39,908 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 11:46:39,910 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 11:46:39,911 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:1 [2020-12-22 11:46:40,144 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 11:46:40,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215450093] [2020-12-22 11:46:40,144 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 11:46:40,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342640681] [2020-12-22 11:46:40,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:46:40,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-12-22 11:46:40,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941808257] [2020-12-22 11:46:40,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-22 11:46:40,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:46:40,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-22 11:46:40,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=224, Unknown=1, NotChecked=0, Total=272 [2020-12-22 11:46:40,149 INFO L87 Difference]: Start difference. First operand 293 states and 344 transitions. Second operand 17 states. [2020-12-22 11:46:53,607 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 30 [2020-12-22 11:46:53,947 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2020-12-22 11:46:54,389 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-22 11:46:54,629 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-12-22 11:46:54,886 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-12-22 11:46:55,304 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-12-22 11:46:55,785 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2020-12-22 11:46:57,988 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2020-12-22 11:46:59,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:46:59,785 INFO L93 Difference]: Finished difference Result 586 states and 690 transitions. [2020-12-22 11:46:59,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 11:46:59,787 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 90 [2020-12-22 11:46:59,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:46:59,789 INFO L225 Difference]: With dead ends: 586 [2020-12-22 11:46:59,789 INFO L226 Difference]: Without dead ends: 365 [2020-12-22 11:46:59,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=144, Invalid=455, Unknown=1, NotChecked=0, Total=600 [2020-12-22 11:46:59,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-12-22 11:46:59,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 330. [2020-12-22 11:46:59,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-12-22 11:46:59,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 388 transitions. [2020-12-22 11:46:59,811 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 388 transitions. Word has length 90 [2020-12-22 11:46:59,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:46:59,811 INFO L481 AbstractCegarLoop]: Abstraction has 330 states and 388 transitions. [2020-12-22 11:46:59,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-22 11:46:59,811 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 388 transitions. [2020-12-22 11:46:59,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-22 11:46:59,812 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:46:59,813 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 11:47:00,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-22 11:47:00,029 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.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:47:00,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:47:00,031 INFO L82 PathProgramCache]: Analyzing trace with hash 913664384, now seen corresponding path program 1 times [2020-12-22 11:47:00,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:47:00,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121827353] [2020-12-22 11:47:00,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:47:00,127 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 11:47:00,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1226685298] [2020-12-22 11:47:00,128 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