./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC --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 5090677d6d260db259697db079256cfe609dc5bc5a9b3d2a9bbc85c8942fae90 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:43:22,462 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:43:22,571 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-23 18:43:22,580 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:43:22,580 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:43:22,609 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:43:22,610 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:43:22,610 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:43:22,610 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:43:22,610 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:43:22,611 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:43:22,611 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:43:22,611 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:43:22,611 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:43:22,612 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:43:22,612 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:43:22,612 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:43:22,612 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:43:22,613 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:43:22,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:43:22,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:43:22,613 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:43:22,613 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:43:22,613 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:43:22,613 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:43:22,614 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:43:22,614 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:43:22,614 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:43:22,614 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:43:22,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:43:22,614 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:43:22,614 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:43:22,614 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:43:22,615 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:43:22,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:43:22,615 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:43:22,615 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:43:22,615 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:43:22,615 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:43:22,615 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:43:22,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:43:22,616 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:43:22,616 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:43:22,616 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:43:22,616 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:43:22,616 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC 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 -> 5090677d6d260db259697db079256cfe609dc5bc5a9b3d2a9bbc85c8942fae90 [2024-11-23 18:43:22,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:43:23,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:43:23,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:43:23,005 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:43:23,006 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:43:23,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i [2024-11-23 18:43:26,208 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/data/01e420890/4b3b87a5d1db49db8396a2b48237aad0/FLAG2b305c31c [2024-11-23 18:43:26,993 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:43:26,994 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i [2024-11-23 18:43:27,035 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/data/01e420890/4b3b87a5d1db49db8396a2b48237aad0/FLAG2b305c31c [2024-11-23 18:43:27,059 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/data/01e420890/4b3b87a5d1db49db8396a2b48237aad0 [2024-11-23 18:43:27,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:43:27,065 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:43:27,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:43:27,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:43:27,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:43:27,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:43:27" (1/1) ... [2024-11-23 18:43:27,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@513aab3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:27, skipping insertion in model container [2024-11-23 18:43:27,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:43:27" (1/1) ... [2024-11-23 18:43:27,188 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:43:27,566 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[4494,4507] [2024-11-23 18:43:27,578 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[4554,4567] [2024-11-23 18:43:29,077 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:29,079 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:29,080 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:29,080 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:29,081 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:29,098 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:29,099 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:29,101 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:29,102 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:29,104 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:29,106 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:29,106 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:29,107 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,484 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,485 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,523 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,524 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,532 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,535 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,559 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,562 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,562 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,563 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,564 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,564 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,565 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,607 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[227989,228002] [2024-11-23 18:43:30,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:43:30,650 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:43:30,672 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[4494,4507] [2024-11-23 18:43:30,676 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[4554,4567] [2024-11-23 18:43:30,796 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,796 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,797 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,797 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,798 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,811 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,811 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,812 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,813 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,815 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,816 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,817 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,817 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:30,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2024-11-23 18:43:31,131 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:31,131 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:31,143 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:31,144 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:31,148 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:31,148 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:31,166 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:31,167 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:31,168 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:31,170 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:31,170 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:31,171 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:31,171 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:43:31,205 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[227989,228002] [2024-11-23 18:43:31,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:43:31,527 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:43:31,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:31 WrapperNode [2024-11-23 18:43:31,530 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:43:31,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:43:31,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:43:31,532 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:43:31,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:31" (1/1) ... [2024-11-23 18:43:31,667 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:31" (1/1) ... [2024-11-23 18:43:31,773 INFO L138 Inliner]: procedures = 763, calls = 2455, calls flagged for inlining = 67, calls inlined = 11, statements flattened = 749 [2024-11-23 18:43:31,773 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:43:31,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:43:31,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:43:31,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:43:31,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:31" (1/1) ... [2024-11-23 18:43:31,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:31" (1/1) ... [2024-11-23 18:43:31,810 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:31" (1/1) ... [2024-11-23 18:43:31,947 INFO L175 MemorySlicer]: Split 348 memory accesses to 9 slices as follows [2, 2, 40, 2, 13, 45, 1, 238, 5]. 68 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 9, 0, 0, 0, 0, 6, 5]. The 246 writes are split as follows [0, 1, 4, 1, 1, 6, 1, 232, 0]. [2024-11-23 18:43:31,947 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:31" (1/1) ... [2024-11-23 18:43:31,948 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:31" (1/1) ... [2024-11-23 18:43:32,027 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:31" (1/1) ... [2024-11-23 18:43:32,031 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:31" (1/1) ... [2024-11-23 18:43:32,038 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:31" (1/1) ... [2024-11-23 18:43:32,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:31" (1/1) ... [2024-11-23 18:43:32,061 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:31" (1/1) ... [2024-11-23 18:43:32,080 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:43:32,081 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:43:32,081 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:43:32,081 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:43:32,082 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:31" (1/1) ... [2024-11-23 18:43:32,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:43:32,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:43:32,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:43:32,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:43:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-23 18:43:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-23 18:43:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-23 18:43:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-23 18:43:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-23 18:43:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-23 18:43:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-23 18:43:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-23 18:43:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-23 18:43:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 18:43:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-23 18:43:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-23 18:43:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-23 18:43:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-23 18:43:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-23 18:43:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-23 18:43:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-23 18:43:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-23 18:43:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-23 18:43:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-23 18:43:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-23 18:43:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 18:43:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 18:43:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 18:43:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 18:43:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 18:43:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 18:43:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-23 18:43:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-23 18:43:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-23 18:43:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-23 18:43:32,180 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-23 18:43:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-23 18:43:32,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-23 18:43:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2024-11-23 18:43:32,180 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2024-11-23 18:43:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 18:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2024-11-23 18:43:32,181 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2024-11-23 18:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 18:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 18:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 18:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-23 18:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-23 18:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-23 18:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-23 18:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-23 18:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-23 18:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-23 18:43:32,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-23 18:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:43:32,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-23 18:43:32,182 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-23 18:43:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-23 18:43:32,182 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-23 18:43:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-23 18:43:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-23 18:43:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-23 18:43:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-23 18:43:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-23 18:43:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-23 18:43:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-23 18:43:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-23 18:43:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-23 18:43:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-23 18:43:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-23 18:43:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-23 18:43:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-23 18:43:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-23 18:43:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-23 18:43:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-23 18:43:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-23 18:43:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-23 18:43:32,186 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-23 18:43:32,186 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-23 18:43:32,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-23 18:43:32,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-23 18:43:32,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-23 18:43:32,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-23 18:43:32,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-23 18:43:32,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-23 18:43:32,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-23 18:43:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:43:32,187 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:43:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 18:43:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2024-11-23 18:43:32,188 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2024-11-23 18:43:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-23 18:43:32,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-23 18:43:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 18:43:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 18:43:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 18:43:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 18:43:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-23 18:43:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-23 18:43:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-23 18:43:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-23 18:43:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-23 18:43:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2024-11-23 18:43:32,190 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2024-11-23 18:43:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-23 18:43:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-23 18:43:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-23 18:43:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-23 18:43:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-23 18:43:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-23 18:43:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-23 18:43:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-23 18:43:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-23 18:43:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-23 18:43:32,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-23 18:43:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-23 18:43:32,190 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-23 18:43:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-23 18:43:32,190 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-23 18:43:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_entry [2024-11-23 18:43:32,193 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_entry [2024-11-23 18:43:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 18:43:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 18:43:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 18:43:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 18:43:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 18:43:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 18:43:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-23 18:43:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-23 18:43:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-23 18:43:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_delete [2024-11-23 18:43:32,194 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_delete [2024-11-23 18:43:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:43:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 18:43:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 18:43:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 18:43:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 18:43:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 18:43:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-23 18:43:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-23 18:43:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-23 18:43:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2024-11-23 18:43:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2024-11-23 18:43:32,751 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:43:32,754 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:43:32,899 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-23 18:43:32,906 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-23 18:43:33,104 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2024-11-23 18:43:33,104 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2024-11-23 18:43:33,104 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume !false; [2024-11-23 18:43:33,104 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##48: assume false; [2024-11-23 18:43:39,935 INFO L? ?]: Removed 222 outVars from TransFormulas that were not future-live. [2024-11-23 18:43:39,935 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:43:39,962 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:43:39,963 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-23 18:43:39,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:43:39 BoogieIcfgContainer [2024-11-23 18:43:39,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:43:39,969 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:43:39,969 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:43:39,976 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:43:39,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:43:27" (1/3) ... [2024-11-23 18:43:39,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af2f996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:43:39, skipping insertion in model container [2024-11-23 18:43:39,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:31" (2/3) ... [2024-11-23 18:43:39,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af2f996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:43:39, skipping insertion in model container [2024-11-23 18:43:39,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:43:39" (3/3) ... [2024-11-23 18:43:39,981 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_delete_harness.i [2024-11-23 18:43:40,000 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:43:40,002 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_delete_harness.i that has 28 procedures, 255 locations, 1 initial locations, 13 loop locations, and 1 error locations. [2024-11-23 18:43:40,090 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:43:40,110 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;@637cb124, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:43:40,111 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:43:40,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 150 states have (on average 1.2866666666666666) internal successors, (193), 149 states have internal predecessors, (193), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-23 18:43:40,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-23 18:43:40,145 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:43:40,146 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:43:40,147 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:43:40,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:43:40,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1747756472, now seen corresponding path program 1 times [2024-11-23 18:43:40,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:43:40,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696175840] [2024-11-23 18:43:40,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:43:40,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:43:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:43:48,837 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2024-11-23 18:43:48,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:43:48,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696175840] [2024-11-23 18:43:48,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696175840] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:43:48,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121655100] [2024-11-23 18:43:48,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:43:48,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:43:48,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:43:48,842 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:43:48,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:43:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:43:56,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 4548 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 18:43:56,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:43:57,018 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2024-11-23 18:43:57,019 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:43:57,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121655100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:43:57,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:43:57,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 18:43:57,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565203138] [2024-11-23 18:43:57,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:43:57,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:43:57,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:43:57,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:43:57,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:43:57,050 INFO L87 Difference]: Start difference. First operand has 223 states, 150 states have (on average 1.2866666666666666) internal successors, (193), 149 states have internal predecessors, (193), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-23 18:43:57,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:43:57,129 INFO L93 Difference]: Finished difference Result 441 states and 636 transitions. [2024-11-23 18:43:57,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:43:57,132 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 203 [2024-11-23 18:43:57,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:43:57,141 INFO L225 Difference]: With dead ends: 441 [2024-11-23 18:43:57,141 INFO L226 Difference]: Without dead ends: 218 [2024-11-23 18:43:57,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:43:57,149 INFO L435 NwaCegarLoop]: 292 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, 292 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 [2024-11-23 18:43:57,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:43:57,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-23 18:43:57,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2024-11-23 18:43:57,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 144 states have (on average 1.25) internal successors, (180), 145 states have internal predecessors, (180), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-23 18:43:57,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 287 transitions. [2024-11-23 18:43:57,207 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 287 transitions. Word has length 203 [2024-11-23 18:43:57,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:43:57,208 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 287 transitions. [2024-11-23 18:43:57,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-23 18:43:57,208 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 287 transitions. [2024-11-23 18:43:57,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-23 18:43:57,213 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:43:57,213 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:43:57,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 18:43:57,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 18:43:57,414 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:43:57,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:43:57,415 INFO L85 PathProgramCache]: Analyzing trace with hash 898608514, now seen corresponding path program 1 times [2024-11-23 18:43:57,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:43:57,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000083167] [2024-11-23 18:43:57,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:43:57,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:06,189 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2024-11-23 18:44:06,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:06,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000083167] [2024-11-23 18:44:06,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000083167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:06,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:06,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:44:06,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760866187] [2024-11-23 18:44:06,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:06,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:44:06,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:06,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:44:06,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:44:06,199 INFO L87 Difference]: Start difference. First operand 218 states and 287 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-23 18:44:06,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:06,437 INFO L93 Difference]: Finished difference Result 399 states and 529 transitions. [2024-11-23 18:44:06,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:44:06,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 203 [2024-11-23 18:44:06,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:06,442 INFO L225 Difference]: With dead ends: 399 [2024-11-23 18:44:06,445 INFO L226 Difference]: Without dead ends: 223 [2024-11-23 18:44:06,446 INFO L434 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 [2024-11-23 18:44:06,447 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 0 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:06,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1132 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:44:06,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-23 18:44:06,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2024-11-23 18:44:06,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 148 states have (on average 1.2432432432432432) internal successors, (184), 149 states have internal predecessors, (184), 54 states have call successors, (54), 19 states have call predecessors, (54), 20 states have return successors, (54), 54 states have call predecessors, (54), 53 states have call successors, (54) [2024-11-23 18:44:06,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 292 transitions. [2024-11-23 18:44:06,492 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 292 transitions. Word has length 203 [2024-11-23 18:44:06,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:06,493 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 292 transitions. [2024-11-23 18:44:06,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-23 18:44:06,493 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 292 transitions. [2024-11-23 18:44:06,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-23 18:44:06,501 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:06,501 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:06,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:44:06,504 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:06,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:06,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1706772534, now seen corresponding path program 1 times [2024-11-23 18:44:06,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:06,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186929474] [2024-11-23 18:44:06,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:06,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:18,371 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2024-11-23 18:44:18,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:18,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186929474] [2024-11-23 18:44:18,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186929474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:18,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:18,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 18:44:18,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738822733] [2024-11-23 18:44:18,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:18,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 18:44:18,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:18,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 18:44:18,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:44:18,376 INFO L87 Difference]: Start difference. First operand 223 states and 292 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2024-11-23 18:44:20,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:20,034 INFO L93 Difference]: Finished difference Result 393 states and 522 transitions. [2024-11-23 18:44:20,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 18:44:20,037 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 209 [2024-11-23 18:44:20,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:20,041 INFO L225 Difference]: With dead ends: 393 [2024-11-23 18:44:20,041 INFO L226 Difference]: Without dead ends: 231 [2024-11-23 18:44:20,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-23 18:44:20,043 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 22 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:20,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 1816 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 18:44:20,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-23 18:44:20,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2024-11-23 18:44:20,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 152 states have (on average 1.243421052631579) internal successors, (189), 154 states have internal predecessors, (189), 54 states have call successors, (54), 19 states have call predecessors, (54), 21 states have return successors, (55), 54 states have call predecessors, (55), 53 states have call successors, (55) [2024-11-23 18:44:20,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 298 transitions. [2024-11-23 18:44:20,065 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 298 transitions. Word has length 209 [2024-11-23 18:44:20,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:20,066 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 298 transitions. [2024-11-23 18:44:20,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2024-11-23 18:44:20,066 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 298 transitions. [2024-11-23 18:44:20,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-23 18:44:20,069 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:20,070 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:20,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:44:20,070 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:20,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:20,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1166343028, now seen corresponding path program 1 times [2024-11-23 18:44:20,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:20,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712622129] [2024-11-23 18:44:20,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:20,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:27,913 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2024-11-23 18:44:27,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:27,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712622129] [2024-11-23 18:44:27,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712622129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:27,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:27,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:44:27,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703652816] [2024-11-23 18:44:27,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:27,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:44:27,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:27,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:44:27,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:44:27,918 INFO L87 Difference]: Start difference. First operand 228 states and 298 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-11-23 18:44:28,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:28,205 INFO L93 Difference]: Finished difference Result 400 states and 530 transitions. [2024-11-23 18:44:28,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:44:28,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 209 [2024-11-23 18:44:28,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:28,213 INFO L225 Difference]: With dead ends: 400 [2024-11-23 18:44:28,213 INFO L226 Difference]: Without dead ends: 233 [2024-11-23 18:44:28,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:44:28,215 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 21 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:28,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 805 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 18:44:28,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-23 18:44:28,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 230. [2024-11-23 18:44:28,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 153 states have (on average 1.2418300653594772) internal successors, (190), 155 states have internal predecessors, (190), 55 states have call successors, (55), 19 states have call predecessors, (55), 21 states have return successors, (56), 55 states have call predecessors, (56), 54 states have call successors, (56) [2024-11-23 18:44:28,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 301 transitions. [2024-11-23 18:44:28,251 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 301 transitions. Word has length 209 [2024-11-23 18:44:28,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:28,252 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 301 transitions. [2024-11-23 18:44:28,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-11-23 18:44:28,252 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 301 transitions. [2024-11-23 18:44:28,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-23 18:44:28,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:28,258 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:28,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:44:28,258 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:28,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:28,259 INFO L85 PathProgramCache]: Analyzing trace with hash 209901495, now seen corresponding path program 1 times [2024-11-23 18:44:28,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:28,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878862777] [2024-11-23 18:44:28,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:28,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:37,589 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2024-11-23 18:44:37,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:37,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878862777] [2024-11-23 18:44:37,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878862777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:44:37,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910948153] [2024-11-23 18:44:37,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:37,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:44:37,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:44:37,595 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:44:37,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 18:44:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:44,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 4576 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 18:44:44,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:44:45,869 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-11-23 18:44:45,870 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:44:45,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910948153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:45,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:44:45,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2024-11-23 18:44:45,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470829340] [2024-11-23 18:44:45,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:45,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:44:45,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:45,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:44:45,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-23 18:44:45,873 INFO L87 Difference]: Start difference. First operand 230 states and 301 transitions. Second operand has 9 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-23 18:44:47,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:47,385 INFO L93 Difference]: Finished difference Result 409 states and 545 transitions. [2024-11-23 18:44:47,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:44:47,386 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 215 [2024-11-23 18:44:47,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:47,389 INFO L225 Difference]: With dead ends: 409 [2024-11-23 18:44:47,389 INFO L226 Difference]: Without dead ends: 240 [2024-11-23 18:44:47,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-23 18:44:47,391 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 0 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2072 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:47,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2072 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 18:44:47,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-23 18:44:47,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 232. [2024-11-23 18:44:47,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 154 states have (on average 1.2402597402597402) internal successors, (191), 157 states have internal predecessors, (191), 55 states have call successors, (55), 19 states have call predecessors, (55), 22 states have return successors, (62), 55 states have call predecessors, (62), 54 states have call successors, (62) [2024-11-23 18:44:47,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 308 transitions. [2024-11-23 18:44:47,412 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 308 transitions. Word has length 215 [2024-11-23 18:44:47,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:47,413 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 308 transitions. [2024-11-23 18:44:47,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-23 18:44:47,413 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 308 transitions. [2024-11-23 18:44:47,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-23 18:44:47,416 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:47,417 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:47,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 18:44:47,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:44:47,617 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:47,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:47,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1193612132, now seen corresponding path program 1 times [2024-11-23 18:44:47,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:47,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30005401] [2024-11-23 18:44:47,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:47,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:59,889 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2024-11-23 18:44:59,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:59,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30005401] [2024-11-23 18:44:59,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30005401] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:44:59,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358894038] [2024-11-23 18:44:59,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:59,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:44:59,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:44:59,893 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:44:59,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 18:45:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:45:07,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 4608 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-23 18:45:07,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:45:08,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 18:45:14,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 18:45:14,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-23 18:45:20,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2024-11-23 18:45:20,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-11-23 18:45:20,456 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 552 proven. 4 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-23 18:45:20,456 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:45:22,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2024-11-23 18:45:23,257 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2024-11-23 18:45:23,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358894038] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:45:23,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:45:23,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 18, 14] total 25 [2024-11-23 18:45:23,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841365852] [2024-11-23 18:45:23,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:45:23,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-23 18:45:23,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:45:23,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-23 18:45:23,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2024-11-23 18:45:23,261 INFO L87 Difference]: Start difference. First operand 232 states and 308 transitions. Second operand has 25 states, 23 states have (on average 6.260869565217392) internal successors, (144), 20 states have internal predecessors, (144), 14 states have call successors, (69), 7 states have call predecessors, (69), 6 states have return successors, (65), 13 states have call predecessors, (65), 13 states have call successors, (65) [2024-11-23 18:45:36,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:45:36,783 INFO L93 Difference]: Finished difference Result 412 states and 535 transitions. [2024-11-23 18:45:36,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-23 18:45:36,784 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 6.260869565217392) internal successors, (144), 20 states have internal predecessors, (144), 14 states have call successors, (69), 7 states have call predecessors, (69), 6 states have return successors, (65), 13 states have call predecessors, (65), 13 states have call successors, (65) Word has length 222 [2024-11-23 18:45:36,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:45:36,791 INFO L225 Difference]: With dead ends: 412 [2024-11-23 18:45:36,791 INFO L226 Difference]: Without dead ends: 284 [2024-11-23 18:45:36,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 404 SyntacticMatches, 30 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=140, Invalid=1120, Unknown=0, NotChecked=0, Total=1260 [2024-11-23 18:45:36,797 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 298 mSDsluCounter, 3806 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 4060 SdHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:45:36,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 4060 Invalid, 1716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1623 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2024-11-23 18:45:36,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-11-23 18:45:36,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 269. [2024-11-23 18:45:36,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 184 states have (on average 1.2173913043478262) internal successors, (224), 186 states have internal predecessors, (224), 56 states have call successors, (56), 26 states have call predecessors, (56), 28 states have return successors, (59), 56 states have call predecessors, (59), 55 states have call successors, (59) [2024-11-23 18:45:36,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 339 transitions. [2024-11-23 18:45:36,842 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 339 transitions. Word has length 222 [2024-11-23 18:45:36,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:45:36,844 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 339 transitions. [2024-11-23 18:45:36,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 6.260869565217392) internal successors, (144), 20 states have internal predecessors, (144), 14 states have call successors, (69), 7 states have call predecessors, (69), 6 states have return successors, (65), 13 states have call predecessors, (65), 13 states have call successors, (65) [2024-11-23 18:45:36,845 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 339 transitions. [2024-11-23 18:45:36,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-23 18:45:36,850 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:45:36,851 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:45:36,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 18:45:37,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-23 18:45:37,051 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:45:37,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:45:37,052 INFO L85 PathProgramCache]: Analyzing trace with hash 493069039, now seen corresponding path program 2 times [2024-11-23 18:45:37,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:45:37,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068568672] [2024-11-23 18:45:37,052 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 18:45:37,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:45:43,423 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 18:45:43,423 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 18:45:49,808 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2024-11-23 18:45:49,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:45:49,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068568672] [2024-11-23 18:45:49,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068568672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:45:49,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:45:49,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 18:45:49,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568757911] [2024-11-23 18:45:49,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:45:49,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 18:45:49,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:45:49,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 18:45:49,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2024-11-23 18:45:49,812 INFO L87 Difference]: Start difference. First operand 269 states and 339 transitions. Second operand has 15 states, 14 states have (on average 5.928571428571429) internal successors, (83), 12 states have internal predecessors, (83), 9 states have call successors, (38), 4 states have call predecessors, (38), 3 states have return successors, (35), 8 states have call predecessors, (35), 8 states have call successors, (35) [2024-11-23 18:45:55,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:45:55,239 INFO L93 Difference]: Finished difference Result 375 states and 479 transitions. [2024-11-23 18:45:55,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 18:45:55,240 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.928571428571429) internal successors, (83), 12 states have internal predecessors, (83), 9 states have call successors, (38), 4 states have call predecessors, (38), 3 states have return successors, (35), 8 states have call predecessors, (35), 8 states have call successors, (35) Word has length 229 [2024-11-23 18:45:55,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:45:55,245 INFO L225 Difference]: With dead ends: 375 [2024-11-23 18:45:55,245 INFO L226 Difference]: Without dead ends: 274 [2024-11-23 18:45:55,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-23 18:45:55,247 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 129 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 3205 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:45:55,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 3205 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-23 18:45:55,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-23 18:45:55,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 269. [2024-11-23 18:45:55,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 184 states have (on average 1.2173913043478262) internal successors, (224), 186 states have internal predecessors, (224), 56 states have call successors, (56), 26 states have call predecessors, (56), 28 states have return successors, (57), 56 states have call predecessors, (57), 55 states have call successors, (57) [2024-11-23 18:45:55,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 337 transitions. [2024-11-23 18:45:55,288 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 337 transitions. Word has length 229 [2024-11-23 18:45:55,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:45:55,289 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 337 transitions. [2024-11-23 18:45:55,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.928571428571429) internal successors, (83), 12 states have internal predecessors, (83), 9 states have call successors, (38), 4 states have call predecessors, (38), 3 states have return successors, (35), 8 states have call predecessors, (35), 8 states have call successors, (35) [2024-11-23 18:45:55,290 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 337 transitions. [2024-11-23 18:45:55,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-23 18:45:55,302 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:45:55,302 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:45:55,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:45:55,302 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:45:55,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:45:55,303 INFO L85 PathProgramCache]: Analyzing trace with hash 222833826, now seen corresponding path program 1 times [2024-11-23 18:45:55,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:45:55,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629326939] [2024-11-23 18:45:55,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:45:55,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:46:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:46:05,394 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 41 proven. 15 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2024-11-23 18:46:05,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:46:05,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629326939] [2024-11-23 18:46:05,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629326939] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:46:05,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883588263] [2024-11-23 18:46:05,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:46:05,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:46:05,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:46:05,398 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:46:05,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 18:46:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:46:13,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 4672 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-11-23 18:46:13,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:46:18,941 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 307 proven. 33 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2024-11-23 18:46:18,941 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:46:24,097 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-23 18:46:24,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 24 [2024-11-23 18:46:25,253 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 64 proven. 12 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2024-11-23 18:46:25,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883588263] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:46:25,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:46:25,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 20, 12] total 31 [2024-11-23 18:46:25,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379901465] [2024-11-23 18:46:25,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:46:25,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-23 18:46:25,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:46:25,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-23 18:46:25,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2024-11-23 18:46:25,257 INFO L87 Difference]: Start difference. First operand 269 states and 337 transitions. Second operand has 31 states, 24 states have (on average 5.791666666666667) internal successors, (139), 28 states have internal predecessors, (139), 12 states have call successors, (61), 5 states have call predecessors, (61), 11 states have return successors, (56), 8 states have call predecessors, (56), 12 states have call successors, (56) [2024-11-23 18:46:31,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:46:38,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:46:53,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:46:53,940 INFO L93 Difference]: Finished difference Result 613 states and 824 transitions. [2024-11-23 18:46:53,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-23 18:46:53,942 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 24 states have (on average 5.791666666666667) internal successors, (139), 28 states have internal predecessors, (139), 12 states have call successors, (61), 5 states have call predecessors, (61), 11 states have return successors, (56), 8 states have call predecessors, (56), 12 states have call successors, (56) Word has length 236 [2024-11-23 18:46:53,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:46:53,947 INFO L225 Difference]: With dead ends: 613 [2024-11-23 18:46:53,947 INFO L226 Difference]: Without dead ends: 474 [2024-11-23 18:46:53,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 448 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=305, Invalid=3001, Unknown=0, NotChecked=0, Total=3306 [2024-11-23 18:46:53,950 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 325 mSDsluCounter, 4282 mSDsCounter, 0 mSdLazyCounter, 2014 mSolverCounterSat, 108 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 4532 SdHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2014 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:46:53,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 4532 Invalid, 2124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2014 Invalid, 2 Unknown, 0 Unchecked, 22.8s Time] [2024-11-23 18:46:53,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-23 18:46:54,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 456. [2024-11-23 18:46:54,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 311 states have (on average 1.22508038585209) internal successors, (381), 319 states have internal predecessors, (381), 94 states have call successors, (94), 39 states have call predecessors, (94), 50 states have return successors, (126), 97 states have call predecessors, (126), 92 states have call successors, (126) [2024-11-23 18:46:54,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 601 transitions. [2024-11-23 18:46:54,014 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 601 transitions. Word has length 236 [2024-11-23 18:46:54,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:46:54,014 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 601 transitions. [2024-11-23 18:46:54,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 24 states have (on average 5.791666666666667) internal successors, (139), 28 states have internal predecessors, (139), 12 states have call successors, (61), 5 states have call predecessors, (61), 11 states have return successors, (56), 8 states have call predecessors, (56), 12 states have call successors, (56) [2024-11-23 18:46:54,015 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 601 transitions. [2024-11-23 18:46:54,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-11-23 18:46:54,020 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:46:54,020 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:46:54,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 18:46:54,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-23 18:46:54,221 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:46:54,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:46:54,221 INFO L85 PathProgramCache]: Analyzing trace with hash -484976652, now seen corresponding path program 1 times [2024-11-23 18:46:54,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:46:54,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952909177] [2024-11-23 18:46:54,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:46:54,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:46:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:47:00,634 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 743 trivial. 0 not checked. [2024-11-23 18:47:00,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:47:00,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952909177] [2024-11-23 18:47:00,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952909177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:47:00,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:47:00,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 18:47:00,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211498390] [2024-11-23 18:47:00,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:47:00,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 18:47:00,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:47:00,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 18:47:00,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:47:00,637 INFO L87 Difference]: Start difference. First operand 456 states and 601 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 5 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 5 states have call predecessors, (36), 5 states have call successors, (36) [2024-11-23 18:47:01,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:47:01,366 INFO L93 Difference]: Finished difference Result 595 states and 779 transitions. [2024-11-23 18:47:01,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 18:47:01,367 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 5 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 5 states have call predecessors, (36), 5 states have call successors, (36) Word has length 250 [2024-11-23 18:47:01,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:47:01,369 INFO L225 Difference]: With dead ends: 595 [2024-11-23 18:47:01,369 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 18:47:01,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:47:01,372 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 36 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:47:01,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 928 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 18:47:01,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 18:47:01,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 18:47:01,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:47:01,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 18:47:01,375 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 250 [2024-11-23 18:47:01,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:47:01,376 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 18:47:01,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 5 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 5 states have call predecessors, (36), 5 states have call successors, (36) [2024-11-23 18:47:01,376 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 18:47:01,376 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 18:47:01,381 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 18:47:01,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 18:47:01,386 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:47:01,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-23 18:47:19,891 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 18:47:19,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:47:19 BoogieIcfgContainer [2024-11-23 18:47:19,907 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 18:47:19,908 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 18:47:19,908 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 18:47:19,908 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 18:47:19,909 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:43:39" (3/4) ... [2024-11-23 18:47:19,912 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 18:47:19,919 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2024-11-23 18:47:19,919 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_table_is_valid [2024-11-23 18:47:19,920 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure s_remove_entry [2024-11-23 18:47:19,920 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2024-11-23 18:47:19,920 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_table_state_required_bytes [2024-11-23 18:47:19,920 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#5 [2024-11-23 18:47:19,920 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#4 [2024-11-23 18:47:19,920 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#7 [2024-11-23 18:47:19,920 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_iter_is_valid [2024-11-23 18:47:19,920 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#6 [2024-11-23 18:47:19,921 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#1 [2024-11-23 18:47:19,921 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~VOID [2024-11-23 18:47:19,921 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mul_size_checked [2024-11-23 18:47:19,921 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#0 [2024-11-23 18:47:19,921 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2024-11-23 18:47:19,921 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#3 [2024-11-23 18:47:19,921 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#2 [2024-11-23 18:47:19,921 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_plus [2024-11-23 18:47:19,921 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#8 [2024-11-23 18:47:19,921 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_table_state_is_valid [2024-11-23 18:47:19,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-23 18:47:19,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2024-11-23 18:47:19,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_mult [2024-11-23 18:47:19,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_is_power_of_two [2024-11-23 18:47:19,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_add_size_checked [2024-11-23 18:47:19,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_iter_delete [2024-11-23 18:47:19,923 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-23 18:47:19,951 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 151 nodes and edges [2024-11-23 18:47:19,954 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2024-11-23 18:47:19,956 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-11-23 18:47:19,958 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-23 18:47:19,959 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-23 18:47:19,961 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-23 18:47:19,962 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-23 18:47:19,963 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 18:47:20,823 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 18:47:20,823 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 18:47:20,823 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 18:47:20,825 INFO L158 Benchmark]: Toolchain (without parser) took 233759.77ms. Allocated memory was 117.4MB in the beginning and 2.5GB in the end (delta: 2.4GB). Free memory was 84.1MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 992.9MB. Max. memory is 16.1GB. [2024-11-23 18:47:20,825 INFO L158 Benchmark]: CDTParser took 1.72ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:47:20,825 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4463.39ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 84.1MB in the beginning and 214.1MB in the end (delta: -130.1MB). Peak memory consumption was 91.7MB. Max. memory is 16.1GB. [2024-11-23 18:47:20,826 INFO L158 Benchmark]: Boogie Procedure Inliner took 242.58ms. Allocated memory is still 343.9MB. Free memory was 214.1MB in the beginning and 202.7MB in the end (delta: 11.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 18:47:20,826 INFO L158 Benchmark]: Boogie Preprocessor took 306.06ms. Allocated memory is still 343.9MB. Free memory was 202.7MB in the beginning and 183.2MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 18:47:20,829 INFO L158 Benchmark]: RCFGBuilder took 7885.92ms. Allocated memory is still 343.9MB. Free memory was 183.2MB in the beginning and 263.7MB in the end (delta: -80.5MB). Peak memory consumption was 104.4MB. Max. memory is 16.1GB. [2024-11-23 18:47:20,829 INFO L158 Benchmark]: TraceAbstraction took 219937.99ms. Allocated memory was 343.9MB in the beginning and 2.5GB in the end (delta: 2.2GB). Free memory was 261.5MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 814.8MB. Max. memory is 16.1GB. [2024-11-23 18:47:20,830 INFO L158 Benchmark]: Witness Printer took 915.93ms. Allocated memory is still 2.5GB. Free memory was 1.6GB in the beginning and 1.5GB in the end (delta: 134.2MB). Peak memory consumption was 134.2MB. Max. memory is 16.1GB. [2024-11-23 18:47:20,835 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.72ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4463.39ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 84.1MB in the beginning and 214.1MB in the end (delta: -130.1MB). Peak memory consumption was 91.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 242.58ms. Allocated memory is still 343.9MB. Free memory was 214.1MB in the beginning and 202.7MB in the end (delta: 11.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 306.06ms. Allocated memory is still 343.9MB. Free memory was 202.7MB in the beginning and 183.2MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 7885.92ms. Allocated memory is still 343.9MB. Free memory was 183.2MB in the beginning and 263.7MB in the end (delta: -80.5MB). Peak memory consumption was 104.4MB. Max. memory is 16.1GB. * TraceAbstraction took 219937.99ms. Allocated memory was 343.9MB in the beginning and 2.5GB in the end (delta: 2.2GB). Free memory was 261.5MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 814.8MB. Max. memory is 16.1GB. * Witness Printer took 915.93ms. Allocated memory is still 2.5GB. Free memory was 1.6GB in the beginning and 1.5GB in the end (delta: 134.2MB). Peak memory consumption was 134.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7558]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 255 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 201.3s, OverallIterations: 9, TraceHistogramMax: 19, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 52.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 891 SdHoareTripleChecker+Valid, 43.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 831 mSDsluCounter, 18842 SdHoareTripleChecker+Invalid, 42.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16519 mSDsCounter, 250 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4791 IncrementalHoareTripleChecker+Invalid, 5043 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 250 mSolverCounterUnsat, 2323 mSDtfsCounter, 4791 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1454 GetRequests, 1276 SyntacticMatches, 34 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 30.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=456occurred in iteration=8, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 52 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 6.1s SatisfiabilityAnalysisTime, 59.3s InterpolantComputationTime, 2852 NumberOfCodeBlocks, 2852 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3295 ConstructedInterpolants, 94 QuantifiedInterpolants, 7532 SizeOfPredicates, 26 NumberOfNonLiveVariables, 18404 ConjunctsInSsa, 168 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 10576/10688 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 9617]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9639]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9142]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9640]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-23 18:47:20,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016a17c3-8a98-4326-9cfa-5573f8f5f9b6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE