./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_top_harness_negated.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 cddb8be3317e9d6bf2e67633b62d21b872e62a4205c204f682a628045c0c7f11 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 14:23:35,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 14:23:35,791 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 14:23:35,798 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 14:23:35,799 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 14:23:35,824 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 14:23:35,825 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 14:23:35,825 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 14:23:35,826 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 14:23:35,826 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 14:23:35,826 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 14:23:35,827 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 14:23:35,827 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 14:23:35,828 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 14:23:35,828 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 14:23:35,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 14:23:35,829 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 14:23:35,831 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 14:23:35,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 14:23:35,832 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 14:23:35,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 14:23:35,836 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 14:23:35,836 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 14:23:35,836 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 14:23:35,839 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 14:23:35,839 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 14:23:35,839 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 14:23:35,839 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 14:23:35,840 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 14:23:35,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 14:23:35,840 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 14:23:35,840 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 14:23:35,840 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 14:23:35,840 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 14:23:35,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 14:23:35,841 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 14:23:35,841 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 14:23:35,842 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 14:23:35,842 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 14:23:35,842 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cddb8be3317e9d6bf2e67633b62d21b872e62a4205c204f682a628045c0c7f11 [2024-11-22 14:23:36,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 14:23:36,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 14:23:36,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 14:23:36,094 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 14:23:36,095 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 14:23:36,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness_negated.i [2024-11-22 14:23:37,576 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 14:23:38,019 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 14:23:38,020 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness_negated.i [2024-11-22 14:23:38,065 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff5de153c/c4a660f64e194e5e9a87132f8437a93b/FLAGc6ff6d375 [2024-11-22 14:23:38,082 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff5de153c/c4a660f64e194e5e9a87132f8437a93b [2024-11-22 14:23:38,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 14:23:38,087 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 14:23:38,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 14:23:38,090 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 14:23:38,096 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 14:23:38,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:23:38" (1/1) ... [2024-11-22 14:23:38,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bc3e44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:38, skipping insertion in model container [2024-11-22 14:23:38,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:23:38" (1/1) ... [2024-11-22 14:23:38,192 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 14:23:38,553 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_top_harness_negated.i[4496,4509] [2024-11-22 14:23:38,593 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_top_harness_negated.i[4556,4569] [2024-11-22 14:23:39,132 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,133 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,133 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,134 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,135 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,147 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,148 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,149 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,150 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,542 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,543 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 14:23:39,652 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 14:23:39,669 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_top_harness_negated.i[4496,4509] [2024-11-22 14:23:39,670 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_top_harness_negated.i[4556,4569] [2024-11-22 14:23:39,746 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,747 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,747 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,747 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,748 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,755 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,756 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,757 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,757 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,849 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,850 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:39,864 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7671-7682] [2024-11-22 14:23:39,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 14:23:40,112 INFO L204 MainTranslator]: Completed translation [2024-11-22 14:23:40,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:40 WrapperNode [2024-11-22 14:23:40,113 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 14:23:40,114 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 14:23:40,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 14:23:40,114 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 14:23:40,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:40" (1/1) ... [2024-11-22 14:23:40,228 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:40" (1/1) ... [2024-11-22 14:23:40,314 INFO L138 Inliner]: procedures = 678, calls = 1548, calls flagged for inlining = 54, calls inlined = 10, statements flattened = 727 [2024-11-22 14:23:40,314 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 14:23:40,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 14:23:40,316 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 14:23:40,316 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 14:23:40,328 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:40" (1/1) ... [2024-11-22 14:23:40,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:40" (1/1) ... [2024-11-22 14:23:40,342 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:40" (1/1) ... [2024-11-22 14:23:40,427 INFO L175 MemorySlicer]: Split 340 memory accesses to 7 slices as follows [2, 238, 2, 3, 6, 82, 7]. 70 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 6, 1, 1, 0, 10, 5]. The 253 writes are split as follows [0, 232, 1, 1, 2, 17, 0]. [2024-11-22 14:23:40,428 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:40" (1/1) ... [2024-11-22 14:23:40,428 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:40" (1/1) ... [2024-11-22 14:23:40,479 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:40" (1/1) ... [2024-11-22 14:23:40,487 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:40" (1/1) ... [2024-11-22 14:23:40,508 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:40" (1/1) ... [2024-11-22 14:23:40,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:40" (1/1) ... [2024-11-22 14:23:40,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 14:23:40,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 14:23:40,542 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 14:23:40,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 14:23:40,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:40" (1/1) ... [2024-11-22 14:23:40,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 14:23:40,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:23:40,584 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) [2024-11-22 14:23:40,590 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 [2024-11-22 14:23:40,635 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-22 14:23:40,635 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-22 14:23:40,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 14:23:40,637 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-22 14:23:40,637 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-22 14:23:40,638 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-22 14:23:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-22 14:23:40,638 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-22 14:23:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-22 14:23:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 14:23:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 14:23:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-22 14:23:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-22 14:23:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-22 14:23:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-22 14:23:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-22 14:23:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 14:23:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 14:23:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 14:23:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 14:23:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 14:23:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 14:23:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 14:23:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-22 14:23:40,641 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-22 14:23:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 14:23:40,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 14:23:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 14:23:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 14:23:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-22 14:23:40,641 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-22 14:23:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 14:23:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 14:23:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 14:23:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 14:23:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-22 14:23:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-22 14:23:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-22 14:23:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 14:23:40,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 14:23:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-22 14:23:40,642 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-22 14:23:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-22 14:23:40,642 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-22 14:23:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-22 14:23:40,642 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-22 14:23:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-22 14:23:40,642 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-22 14:23:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-22 14:23:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-22 14:23:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-22 14:23:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-22 14:23:40,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-22 14:23:40,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-22 14:23:40,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-22 14:23:40,643 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-22 14:23:40,643 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-22 14:23:40,643 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-22 14:23:40,643 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-22 14:23:40,644 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 14:23:40,645 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 14:23:40,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 14:23:40,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 14:23:40,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 14:23:40,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 14:23:40,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 14:23:40,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-22 14:23:40,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-22 14:23:40,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-22 14:23:40,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-22 14:23:40,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-22 14:23:40,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-22 14:23:40,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-22 14:23:40,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-22 14:23:40,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-22 14:23:40,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-22 14:23:40,648 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-22 14:23:40,648 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-22 14:23:40,649 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-22 14:23:40,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-22 14:23:40,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 14:23:40,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 14:23:40,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 14:23:40,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 14:23:40,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 14:23:40,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 14:23:40,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 14:23:40,650 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2024-11-22 14:23:40,650 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2024-11-22 14:23:40,650 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-22 14:23:40,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-22 14:23:40,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 14:23:40,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 14:23:40,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 14:23:40,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 14:23:40,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 14:23:40,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 14:23:40,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 14:23:41,038 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 14:23:41,040 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 14:23:47,143 INFO L? ?]: Removed 160 outVars from TransFormulas that were not future-live. [2024-11-22 14:23:47,143 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 14:23:47,166 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 14:23:47,167 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-22 14:23:47,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:23:47 BoogieIcfgContainer [2024-11-22 14:23:47,167 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 14:23:47,169 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 14:23:47,169 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 14:23:47,174 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 14:23:47,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:23:38" (1/3) ... [2024-11-22 14:23:47,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14082378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:23:47, skipping insertion in model container [2024-11-22 14:23:47,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:40" (2/3) ... [2024-11-22 14:23:47,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14082378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:23:47, skipping insertion in model container [2024-11-22 14:23:47,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:23:47" (3/3) ... [2024-11-22 14:23:47,178 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_top_harness_negated.i [2024-11-22 14:23:47,194 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 14:23:47,194 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 14:23:47,274 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 14:23:47,284 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;@506651a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 14:23:47,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 14:23:47,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 132 states have (on average 1.2196969696969697) internal successors, (161), 132 states have internal predecessors, (161), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-22 14:23:47,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 14:23:47,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:23:47,310 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 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] [2024-11-22 14:23:47,311 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:23:47,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:23:47,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1327475127, now seen corresponding path program 1 times [2024-11-22 14:23:47,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:23:47,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540239820] [2024-11-22 14:23:47,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:23:47,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:23:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:23:53,969 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-22 14:23:53,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:23:53,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540239820] [2024-11-22 14:23:53,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540239820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:23:53,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638224430] [2024-11-22 14:23:53,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:23:53,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:23:53,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:23:53,976 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) [2024-11-22 14:23:53,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 14:24:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:24:00,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 4575 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 14:24:00,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:24:00,364 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-22 14:24:00,364 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:24:00,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638224430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:24:00,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:24:00,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 14:24:00,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242503955] [2024-11-22 14:24:00,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:24:00,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 14:24:00,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:24:00,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 14:24:00,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 14:24:00,406 INFO L87 Difference]: Start difference. First operand has 208 states, 132 states have (on average 1.2196969696969697) internal successors, (161), 132 states have internal predecessors, (161), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-22 14:24:00,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:24:00,458 INFO L93 Difference]: Finished difference Result 393 states and 552 transitions. [2024-11-22 14:24:00,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 14:24:00,461 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 148 [2024-11-22 14:24:00,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:24:00,472 INFO L225 Difference]: With dead ends: 393 [2024-11-22 14:24:00,473 INFO L226 Difference]: Without dead ends: 203 [2024-11-22 14:24:00,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 14:24:00,486 INFO L432 NwaCegarLoop]: 270 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, 270 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 [2024-11-22 14:24:00,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 14:24:00,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-22 14:24:00,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-11-22 14:24:00,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 127 states have (on average 1.1968503937007875) internal successors, (152), 128 states have internal predecessors, (152), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-22 14:24:00,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 265 transitions. [2024-11-22 14:24:00,562 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 265 transitions. Word has length 148 [2024-11-22 14:24:00,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:24:00,564 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 265 transitions. [2024-11-22 14:24:00,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-22 14:24:00,565 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 265 transitions. [2024-11-22 14:24:00,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 14:24:00,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:24:00,569 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 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] [2024-11-22 14:24:00,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 14:24:00,769 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 [2024-11-22 14:24:00,770 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:24:00,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:24:00,771 INFO L85 PathProgramCache]: Analyzing trace with hash -446309067, now seen corresponding path program 1 times [2024-11-22 14:24:00,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:24:00,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108463528] [2024-11-22 14:24:00,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:24:00,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:24:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:24:07,050 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-22 14:24:07,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:24:07,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108463528] [2024-11-22 14:24:07,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108463528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:24:07,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:24:07,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 14:24:07,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698803145] [2024-11-22 14:24:07,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:24:07,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 14:24:07,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:24:07,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 14:24:07,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 14:24:07,055 INFO L87 Difference]: Start difference. First operand 203 states and 265 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 14:24:07,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:24:07,679 INFO L93 Difference]: Finished difference Result 357 states and 466 transitions. [2024-11-22 14:24:07,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 14:24:07,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 148 [2024-11-22 14:24:07,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:24:07,683 INFO L225 Difference]: With dead ends: 357 [2024-11-22 14:24:07,684 INFO L226 Difference]: Without dead ends: 203 [2024-11-22 14:24:07,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 14:24:07,686 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 19 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 14:24:07,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 946 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 14:24:07,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-22 14:24:07,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-11-22 14:24:07,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 127 states have (on average 1.188976377952756) internal successors, (151), 128 states have internal predecessors, (151), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-22 14:24:07,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 264 transitions. [2024-11-22 14:24:07,712 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 264 transitions. Word has length 148 [2024-11-22 14:24:07,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:24:07,714 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 264 transitions. [2024-11-22 14:24:07,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 14:24:07,714 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 264 transitions. [2024-11-22 14:24:07,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 14:24:07,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:24:07,720 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 3, 3, 3, 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] [2024-11-22 14:24:07,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 14:24:07,721 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:24:07,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:24:07,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1083989423, now seen corresponding path program 1 times [2024-11-22 14:24:07,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:24:07,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959237557] [2024-11-22 14:24:07,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:24:07,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:24:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:24:14,215 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-22 14:24:14,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:24:14,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959237557] [2024-11-22 14:24:14,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959237557] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:24:14,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341138850] [2024-11-22 14:24:14,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:24:14,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:24:14,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:24:14,222 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) [2024-11-22 14:24:14,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 14:24:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:24:19,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 4625 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 14:24:19,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:24:21,189 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-22 14:24:21,189 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:24:21,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341138850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:24:21,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:24:21,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-22 14:24:21,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505112671] [2024-11-22 14:24:21,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:24:21,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 14:24:21,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:24:21,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 14:24:21,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-22 14:24:21,193 INFO L87 Difference]: Start difference. First operand 203 states and 264 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-22 14:24:25,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:24:25,428 INFO L93 Difference]: Finished difference Result 376 states and 498 transitions. [2024-11-22 14:24:25,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 14:24:25,429 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 156 [2024-11-22 14:24:25,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:24:25,433 INFO L225 Difference]: With dead ends: 376 [2024-11-22 14:24:25,434 INFO L226 Difference]: Without dead ends: 205 [2024-11-22 14:24:25,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-11-22 14:24:25,436 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 282 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-22 14:24:25,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 1287 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-22 14:24:25,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-22 14:24:25,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-11-22 14:24:25,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 128 states have (on average 1.1875) internal successors, (152), 130 states have internal predecessors, (152), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2024-11-22 14:24:25,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 271 transitions. [2024-11-22 14:24:25,462 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 271 transitions. Word has length 156 [2024-11-22 14:24:25,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:24:25,463 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 271 transitions. [2024-11-22 14:24:25,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-22 14:24:25,464 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 271 transitions. [2024-11-22 14:24:25,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-22 14:24:25,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:24:25,468 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:24:25,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 14:24:25,669 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,SelfDestructingSolverStorable2 [2024-11-22 14:24:25,669 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:24:25,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:24:25,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1896012215, now seen corresponding path program 1 times [2024-11-22 14:24:25,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:24:25,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034231755] [2024-11-22 14:24:25,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:24:25,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:24:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:24:31,653 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-22 14:24:31,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:24:31,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034231755] [2024-11-22 14:24:31,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034231755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:24:31,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:24:31,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 14:24:31,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111287856] [2024-11-22 14:24:31,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:24:31,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 14:24:31,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:24:31,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 14:24:31,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 14:24:31,656 INFO L87 Difference]: Start difference. First operand 205 states and 271 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-22 14:24:32,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:24:32,594 INFO L93 Difference]: Finished difference Result 362 states and 479 transitions. [2024-11-22 14:24:32,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 14:24:32,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 171 [2024-11-22 14:24:32,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:24:32,597 INFO L225 Difference]: With dead ends: 362 [2024-11-22 14:24:32,597 INFO L226 Difference]: Without dead ends: 205 [2024-11-22 14:24:32,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 14:24:32,599 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 36 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 14:24:32,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 1142 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 14:24:32,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-22 14:24:32,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-11-22 14:24:32,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 128 states have (on average 1.1796875) internal successors, (151), 130 states have internal predecessors, (151), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2024-11-22 14:24:32,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 270 transitions. [2024-11-22 14:24:32,616 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 270 transitions. Word has length 171 [2024-11-22 14:24:32,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:24:32,617 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 270 transitions. [2024-11-22 14:24:32,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-22 14:24:32,617 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 270 transitions. [2024-11-22 14:24:32,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-22 14:24:32,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:24:32,620 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:24:32,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 14:24:32,620 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:24:32,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:24:32,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1822656142, now seen corresponding path program 1 times [2024-11-22 14:24:32,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:24:32,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852387905] [2024-11-22 14:24:32,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:24:32,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:24:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:24:38,655 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-22 14:24:38,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:24:38,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852387905] [2024-11-22 14:24:38,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852387905] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:24:38,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643442483] [2024-11-22 14:24:38,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:24:38,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:24:38,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:24:38,657 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) [2024-11-22 14:24:38,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 14:24:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:24:44,105 INFO L255 TraceCheckSpWp]: Trace formula consists of 4824 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 14:24:44,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:24:46,227 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-22 14:24:46,227 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:24:46,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643442483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:24:46,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:24:46,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2024-11-22 14:24:46,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143420257] [2024-11-22 14:24:46,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:24:46,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 14:24:46,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:24:46,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 14:24:46,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-22 14:24:46,230 INFO L87 Difference]: Start difference. First operand 205 states and 270 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2024-11-22 14:24:51,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:24:51,254 INFO L93 Difference]: Finished difference Result 375 states and 496 transitions. [2024-11-22 14:24:51,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 14:24:51,255 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 187 [2024-11-22 14:24:51,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:24:51,258 INFO L225 Difference]: With dead ends: 375 [2024-11-22 14:24:51,258 INFO L226 Difference]: Without dead ends: 205 [2024-11-22 14:24:51,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-11-22 14:24:51,260 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 316 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-22 14:24:51,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1331 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-22 14:24:51,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-22 14:24:51,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-11-22 14:24:51,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 128 states have (on average 1.1796875) internal successors, (151), 130 states have internal predecessors, (151), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (61), 56 states have call predecessors, (61), 56 states have call successors, (61) [2024-11-22 14:24:51,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 269 transitions. [2024-11-22 14:24:51,275 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 269 transitions. Word has length 187 [2024-11-22 14:24:51,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:24:51,275 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 269 transitions. [2024-11-22 14:24:51,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2024-11-22 14:24:51,276 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 269 transitions. [2024-11-22 14:24:51,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-22 14:24:51,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:24:51,278 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:24:51,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 14:24:51,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:24:51,481 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:24:51,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:24:51,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1465652904, now seen corresponding path program 2 times [2024-11-22 14:24:51,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:24:51,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740287858] [2024-11-22 14:24:51,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 14:24:51,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:24:55,735 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 14:24:55,735 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 14:24:57,901 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-22 14:24:57,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:24:57,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740287858] [2024-11-22 14:24:57,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740287858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:24:57,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:24:57,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 14:24:57,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138053944] [2024-11-22 14:24:57,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:24:57,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 14:24:57,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:24:57,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 14:24:57,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 14:24:57,904 INFO L87 Difference]: Start difference. First operand 205 states and 269 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 14:24:58,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:24:58,249 INFO L93 Difference]: Finished difference Result 213 states and 277 transitions. [2024-11-22 14:24:58,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 14:24:58,250 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 202 [2024-11-22 14:24:58,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:24:58,252 INFO L225 Difference]: With dead ends: 213 [2024-11-22 14:24:58,252 INFO L226 Difference]: Without dead ends: 211 [2024-11-22 14:24:58,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 14:24:58,253 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 3 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 14:24:58,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1288 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 14:24:58,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-22 14:24:58,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 210. [2024-11-22 14:24:58,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 131 states have (on average 1.1755725190839694) internal successors, (154), 133 states have internal predecessors, (154), 58 states have call successors, (58), 19 states have call predecessors, (58), 20 states have return successors, (62), 57 states have call predecessors, (62), 57 states have call successors, (62) [2024-11-22 14:24:58,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 274 transitions. [2024-11-22 14:24:58,274 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 274 transitions. Word has length 202 [2024-11-22 14:24:58,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:24:58,275 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 274 transitions. [2024-11-22 14:24:58,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 14:24:58,275 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 274 transitions. [2024-11-22 14:24:58,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-22 14:24:58,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:24:58,278 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:24:58,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 14:24:58,279 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:24:58,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:24:58,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1729245612, now seen corresponding path program 3 times [2024-11-22 14:24:58,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:24:58,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293954153] [2024-11-22 14:24:58,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 14:24:58,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms