./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 02a1ef197fe295e0adddb84ae3aa2db56396688008aeca91e1ab4b161b42690c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 02:21:05,714 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 02:21:05,776 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 02:21:05,781 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 02:21:05,782 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 02:21:05,796 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 02:21:05,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 02:21:05,797 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 02:21:05,797 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 02:21:05,798 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 02:21:05,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 02:21:05,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 02:21:05,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 02:21:05,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 02:21:05,801 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 02:21:05,801 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 02:21:05,802 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 02:21:05,802 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 02:21:05,802 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 02:21:05,802 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 02:21:05,802 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 02:21:05,805 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 02:21:05,805 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 02:21:05,806 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 02:21:05,806 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 02:21:05,806 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 02:21:05,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 02:21:05,806 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 02:21:05,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 02:21:05,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:21:05,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 02:21:05,807 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 02:21:05,807 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 02:21:05,807 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 02:21:05,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 02:21:05,808 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 02:21:05,808 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 02:21:05,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 02:21:05,810 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 02:21:05,811 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02a1ef197fe295e0adddb84ae3aa2db56396688008aeca91e1ab4b161b42690c [2024-11-19 02:21:06,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 02:21:06,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 02:21:06,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 02:21:06,047 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 02:21:06,047 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 02:21:06,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2024-11-19 02:21:07,298 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 02:21:07,703 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 02:21:07,703 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2024-11-19 02:21:07,751 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b103bd83c/36d4e9b16396483cbf7a450619c08b43/FLAG1467925de [2024-11-19 02:21:07,855 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b103bd83c/36d4e9b16396483cbf7a450619c08b43 [2024-11-19 02:21:07,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 02:21:07,858 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 02:21:07,859 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 02:21:07,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 02:21:07,864 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 02:21:07,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:21:07" (1/1) ... [2024-11-19 02:21:07,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13cfe1f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:07, skipping insertion in model container [2024-11-19 02:21:07,866 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:21:07" (1/1) ... [2024-11-19 02:21:07,944 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 02:21:08,156 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4505,4518] [2024-11-19 02:21:08,163 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4565,4578] [2024-11-19 02:21:08,696 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:08,698 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:08,699 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:08,699 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:08,700 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:08,710 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:08,710 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:08,711 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:08,712 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:09,038 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:09,042 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:09,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:21:09,144 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 02:21:09,168 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4505,4518] [2024-11-19 02:21:09,168 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4565,4578] [2024-11-19 02:21:09,234 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:09,235 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:09,236 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:09,237 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:09,237 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:09,241 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:09,242 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:09,244 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:09,244 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:09,301 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:09,302 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:21:09,305 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2024-11-19 02:21:09,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:21:09,471 INFO L204 MainTranslator]: Completed translation [2024-11-19 02:21:09,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:09 WrapperNode [2024-11-19 02:21:09,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 02:21:09,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 02:21:09,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 02:21:09,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 02:21:09,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:09" (1/1) ... [2024-11-19 02:21:09,541 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:09" (1/1) ... [2024-11-19 02:21:09,609 INFO L138 Inliner]: procedures = 678, calls = 1530, calls flagged for inlining = 52, calls inlined = 9, statements flattened = 765 [2024-11-19 02:21:09,613 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 02:21:09,614 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 02:21:09,614 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 02:21:09,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 02:21:09,624 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:09" (1/1) ... [2024-11-19 02:21:09,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:09" (1/1) ... [2024-11-19 02:21:09,635 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:09" (1/1) ... [2024-11-19 02:21:09,708 INFO L175 MemorySlicer]: Split 301 memory accesses to 5 slices as follows [2, 238, 48, 8, 5]. 79 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 6, 0, 2, 5]. The 252 writes are split as follows [0, 232, 19, 1, 0]. [2024-11-19 02:21:09,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:09" (1/1) ... [2024-11-19 02:21:09,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:09" (1/1) ... [2024-11-19 02:21:09,739 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:09" (1/1) ... [2024-11-19 02:21:09,744 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:09" (1/1) ... [2024-11-19 02:21:09,750 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:09" (1/1) ... [2024-11-19 02:21:09,754 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:09" (1/1) ... [2024-11-19 02:21:09,760 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 02:21:09,761 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 02:21:09,761 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 02:21:09,761 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 02:21:09,762 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:09" (1/1) ... [2024-11-19 02:21:09,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:21:09,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:21:09,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 02:21:09,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 02:21:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-19 02:21:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-19 02:21:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 02:21:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-19 02:21:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-19 02:21:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-19 02:21:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-19 02:21:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-19 02:21:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-19 02:21:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 02:21:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 02:21:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 02:21:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 02:21:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 02:21:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 02:21:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 02:21:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 02:21:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 02:21:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 02:21:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-19 02:21:09,834 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-19 02:21:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 02:21:09,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 02:21:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 02:21:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 02:21:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 02:21:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 02:21:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 02:21:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 02:21:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 02:21:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 02:21:09,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 02:21:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-19 02:21:09,835 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-19 02:21:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-19 02:21:09,836 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-19 02:21:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-19 02:21:09,836 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-19 02:21:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 02:21:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 02:21:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 02:21:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 02:21:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 02:21:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-19 02:21:09,837 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-19 02:21:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-19 02:21:09,837 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-19 02:21:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 02:21:09,837 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 02:21:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 02:21:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 02:21:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 02:21:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 02:21:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 02:21:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 02:21:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 02:21:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 02:21:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 02:21:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 02:21:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 02:21:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-19 02:21:09,838 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-19 02:21:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-19 02:21:09,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-19 02:21:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 02:21:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 02:21:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 02:21:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 02:21:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 02:21:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-11-19 02:21:09,839 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-11-19 02:21:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-11-19 02:21:09,839 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-11-19 02:21:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 02:21:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 02:21:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 02:21:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 02:21:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 02:21:10,095 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 02:21:10,097 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 02:21:15,888 INFO L? ?]: Removed 151 outVars from TransFormulas that were not future-live. [2024-11-19 02:21:15,888 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 02:21:15,903 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 02:21:15,904 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-19 02:21:15,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:21:15 BoogieIcfgContainer [2024-11-19 02:21:15,905 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 02:21:15,908 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 02:21:15,908 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 02:21:15,910 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 02:21:15,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:21:07" (1/3) ... [2024-11-19 02:21:15,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143c20d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:21:15, skipping insertion in model container [2024-11-19 02:21:15,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:09" (2/3) ... [2024-11-19 02:21:15,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143c20d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:21:15, skipping insertion in model container [2024-11-19 02:21:15,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:21:15" (3/3) ... [2024-11-19 02:21:15,912 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness.i [2024-11-19 02:21:15,926 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 02:21:15,926 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 02:21:15,988 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 02:21:15,994 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6fb8fa6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 02:21:15,996 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 02:21:16,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 219 states, 141 states have (on average 1.2411347517730495) internal successors, (175), 141 states have internal predecessors, (175), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 02:21:16,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 02:21:16,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:21:16,014 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:21:16,015 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:21:16,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:21:16,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1438933569, now seen corresponding path program 1 times [2024-11-19 02:21:16,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:21:16,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365555687] [2024-11-19 02:21:16,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:21:16,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:21:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:21:20,934 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-19 02:21:20,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:21:20,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365555687] [2024-11-19 02:21:20,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365555687] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:21:20,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566108456] [2024-11-19 02:21:20,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:21:20,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:21:20,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:21:20,938 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:21:20,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 02:21:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:21:25,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 4413 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 02:21:25,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:21:25,964 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-19 02:21:25,964 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:21:25,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566108456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:21:25,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:21:25,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 02:21:25,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429130108] [2024-11-19 02:21:25,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:21:25,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 02:21:25,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:21:25,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 02:21:25,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 02:21:25,995 INFO L87 Difference]: Start difference. First operand has 219 states, 141 states have (on average 1.2411347517730495) internal successors, (175), 141 states have internal predecessors, (175), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-19 02:21:26,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:21:26,042 INFO L93 Difference]: Finished difference Result 412 states and 602 transitions. [2024-11-19 02:21:26,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 02:21:26,045 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 144 [2024-11-19 02:21:26,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:21:26,055 INFO L225 Difference]: With dead ends: 412 [2024-11-19 02:21:26,055 INFO L226 Difference]: Without dead ends: 212 [2024-11-19 02:21:26,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 02:21:26,061 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 02:21:26,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 02:21:26,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-19 02:21:26,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2024-11-19 02:21:26,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 133 states have (on average 1.2105263157894737) internal successors, (161), 135 states have internal predecessors, (161), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-19 02:21:26,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 283 transitions. [2024-11-19 02:21:26,113 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 283 transitions. Word has length 144 [2024-11-19 02:21:26,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:21:26,116 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 283 transitions. [2024-11-19 02:21:26,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-19 02:21:26,117 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 283 transitions. [2024-11-19 02:21:26,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-19 02:21:26,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:21:26,122 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:21:26,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 02:21:26,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 02:21:26,324 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:21:26,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:21:26,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1947585720, now seen corresponding path program 1 times [2024-11-19 02:21:26,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:21:26,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998048197] [2024-11-19 02:21:26,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:21:26,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:21:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:21:32,118 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2024-11-19 02:21:32,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:21:32,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998048197] [2024-11-19 02:21:32,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998048197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:21:32,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041452171] [2024-11-19 02:21:32,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:21:32,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:21:32,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:21:32,123 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:21:32,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 02:21:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:21:37,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 4561 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-19 02:21:37,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:21:39,551 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2024-11-19 02:21:39,551 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 02:21:42,336 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-19 02:21:42,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041452171] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 02:21:42,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-19 02:21:42,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 10] total 16 [2024-11-19 02:21:42,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015584964] [2024-11-19 02:21:42,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:21:42,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 02:21:42,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:21:42,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 02:21:42,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-11-19 02:21:42,339 INFO L87 Difference]: Start difference. First operand 212 states and 283 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-19 02:21:42,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:21:42,919 INFO L93 Difference]: Finished difference Result 220 states and 291 transitions. [2024-11-19 02:21:42,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 02:21:42,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 178 [2024-11-19 02:21:42,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:21:42,923 INFO L225 Difference]: With dead ends: 220 [2024-11-19 02:21:42,923 INFO L226 Difference]: Without dead ends: 218 [2024-11-19 02:21:42,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-11-19 02:21:42,924 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 3 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 02:21:42,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1102 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 02:21:42,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-19 02:21:42,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 217. [2024-11-19 02:21:42,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 136 states have (on average 1.2058823529411764) internal successors, (164), 139 states have internal predecessors, (164), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-19 02:21:42,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 288 transitions. [2024-11-19 02:21:42,940 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 288 transitions. Word has length 178 [2024-11-19 02:21:42,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:21:42,940 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 288 transitions. [2024-11-19 02:21:42,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-19 02:21:42,941 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 288 transitions. [2024-11-19 02:21:42,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-19 02:21:42,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:21:42,943 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:21:42,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 02:21:43,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-19 02:21:43,144 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:21:43,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:21:43,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1945738678, now seen corresponding path program 1 times [2024-11-19 02:21:43,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:21:43,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429880693] [2024-11-19 02:21:43,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:21:43,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:21:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:21:48,563 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2024-11-19 02:21:48,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:21:48,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429880693] [2024-11-19 02:21:48,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429880693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:21:48,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204373559] [2024-11-19 02:21:48,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:21:48,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:21:48,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:21:48,566 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:21:48,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 02:21:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:21:53,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 4566 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 02:21:53,497 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:21:54,203 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-19 02:21:54,203 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:21:54,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204373559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:21:54,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:21:54,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2024-11-19 02:21:54,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873439403] [2024-11-19 02:21:54,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:21:54,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 02:21:54,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:21:54,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 02:21:54,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 02:21:54,206 INFO L87 Difference]: Start difference. First operand 217 states and 288 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-11-19 02:21:54,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:21:54,764 INFO L93 Difference]: Finished difference Result 402 states and 527 transitions. [2024-11-19 02:21:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 02:21:54,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 178 [2024-11-19 02:21:54,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:21:54,771 INFO L225 Difference]: With dead ends: 402 [2024-11-19 02:21:54,772 INFO L226 Difference]: Without dead ends: 217 [2024-11-19 02:21:54,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 02:21:54,773 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 7 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 02:21:54,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1365 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 02:21:54,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-19 02:21:54,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2024-11-19 02:21:54,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 136 states have (on average 1.1985294117647058) internal successors, (163), 139 states have internal predecessors, (163), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-19 02:21:54,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 287 transitions. [2024-11-19 02:21:54,789 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 287 transitions. Word has length 178 [2024-11-19 02:21:54,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:21:54,790 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 287 transitions. [2024-11-19 02:21:54,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-11-19 02:21:54,790 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 287 transitions. [2024-11-19 02:21:54,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-19 02:21:54,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:21:54,792 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:21:54,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 02:21:54,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:21:54,993 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:21:54,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:21:54,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1712341190, now seen corresponding path program 1 times [2024-11-19 02:21:54,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:21:54,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961016590] [2024-11-19 02:21:54,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:21:54,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:21:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:22:01,206 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2024-11-19 02:22:01,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:22:01,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961016590] [2024-11-19 02:22:01,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961016590] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:22:01,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607077753] [2024-11-19 02:22:01,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:22:01,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:22:01,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:22:01,208 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:22:01,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 02:22:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:22:06,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 4582 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 02:22:06,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:22:06,332 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-19 02:22:06,332 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:22:06,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607077753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:22:06,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:22:06,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-19 02:22:06,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055320516] [2024-11-19 02:22:06,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:22:06,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 02:22:06,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:22:06,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 02:22:06,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 02:22:06,334 INFO L87 Difference]: Start difference. First operand 217 states and 287 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-19 02:22:06,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:22:06,421 INFO L93 Difference]: Finished difference Result 398 states and 524 transitions. [2024-11-19 02:22:06,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 02:22:06,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 182 [2024-11-19 02:22:06,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:22:06,425 INFO L225 Difference]: With dead ends: 398 [2024-11-19 02:22:06,426 INFO L226 Difference]: Without dead ends: 219 [2024-11-19 02:22:06,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 02:22:06,428 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 1 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:22:06,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 556 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:22:06,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-19 02:22:06,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 218. [2024-11-19 02:22:06,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 137 states have (on average 1.197080291970803) internal successors, (164), 140 states have internal predecessors, (164), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-19 02:22:06,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 288 transitions. [2024-11-19 02:22:06,449 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 288 transitions. Word has length 182 [2024-11-19 02:22:06,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:22:06,450 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 288 transitions. [2024-11-19 02:22:06,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-19 02:22:06,450 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 288 transitions. [2024-11-19 02:22:06,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-19 02:22:06,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:22:06,454 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:22:06,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 02:22:06,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:22:06,655 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:22:06,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:22:06,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1628353086, now seen corresponding path program 1 times [2024-11-19 02:22:06,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:22:06,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603402451] [2024-11-19 02:22:06,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:22:06,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:22:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:22:13,242 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2024-11-19 02:22:13,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:22:13,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603402451] [2024-11-19 02:22:13,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603402451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:22:13,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120278205] [2024-11-19 02:22:13,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:22:13,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:22:13,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:22:13,244 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:22:13,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 02:22:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:22:20,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 4620 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 02:22:20,333 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:22:21,799 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 154 proven. 1 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-19 02:22:21,799 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 02:22:25,393 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2024-11-19 02:22:25,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120278205] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 02:22:25,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 02:22:25,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-19 02:22:25,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388164265] [2024-11-19 02:22:25,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 02:22:25,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 02:22:25,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:22:25,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 02:22:25,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-11-19 02:22:25,396 INFO L87 Difference]: Start difference. First operand 218 states and 288 transitions. Second operand has 17 states, 15 states have (on average 6.933333333333334) internal successors, (104), 17 states have internal predecessors, (104), 7 states have call successors, (42), 2 states have call predecessors, (42), 6 states have return successors, (43), 7 states have call predecessors, (43), 7 states have call successors, (43) [2024-11-19 02:22:26,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:22:26,479 INFO L93 Difference]: Finished difference Result 408 states and 532 transitions. [2024-11-19 02:22:26,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 02:22:26,480 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.933333333333334) internal successors, (104), 17 states have internal predecessors, (104), 7 states have call successors, (42), 2 states have call predecessors, (42), 6 states have return successors, (43), 7 states have call predecessors, (43), 7 states have call successors, (43) Word has length 186 [2024-11-19 02:22:26,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:22:26,483 INFO L225 Difference]: With dead ends: 408 [2024-11-19 02:22:26,483 INFO L226 Difference]: Without dead ends: 221 [2024-11-19 02:22:26,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-11-19 02:22:26,485 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 12 mSDsluCounter, 1902 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2177 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 02:22:26,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2177 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 02:22:26,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-19 02:22:26,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 220. [2024-11-19 02:22:26,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 139 states have (on average 1.1942446043165467) internal successors, (166), 142 states have internal predecessors, (166), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-19 02:22:26,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 290 transitions. [2024-11-19 02:22:26,508 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 290 transitions. Word has length 186 [2024-11-19 02:22:26,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:22:26,511 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 290 transitions. [2024-11-19 02:22:26,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.933333333333334) internal successors, (104), 17 states have internal predecessors, (104), 7 states have call successors, (42), 2 states have call predecessors, (42), 6 states have return successors, (43), 7 states have call predecessors, (43), 7 states have call successors, (43) [2024-11-19 02:22:26,512 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 290 transitions. [2024-11-19 02:22:26,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-19 02:22:26,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:22:26,514 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:22:26,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 02:22:26,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:22:26,716 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:22:26,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:22:26,716 INFO L85 PathProgramCache]: Analyzing trace with hash 945550146, now seen corresponding path program 2 times [2024-11-19 02:22:26,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:22:26,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051461166] [2024-11-19 02:22:26,717 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 02:22:26,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:22:31,570 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 02:22:31,571 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 02:22:33,849 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2024-11-19 02:22:33,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:22:33,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051461166] [2024-11-19 02:22:33,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051461166] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:22:33,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948235660] [2024-11-19 02:22:33,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 02:22:33,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:22:33,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:22:33,851 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:22:33,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process