./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX --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 78eb38d6bf3586b94afef9b9563a4418baaa3316932367911cecf1c3731c38b2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:52:46,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:52:46,471 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-08 16:52:46,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:52:46,484 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:52:46,523 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:52:46,524 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:52:46,525 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:52:46,526 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:52:46,528 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:52:46,530 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:52:46,531 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:52:46,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:52:46,532 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:52:46,532 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:52:46,533 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:52:46,533 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:52:46,534 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:52:46,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:52:46,539 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:52:46,539 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:52:46,541 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:52:46,541 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:52:46,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:52:46,542 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:52:46,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:52:46,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:52:46,544 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:52:46,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:52:46,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:52:46,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:52:46,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:52:46,546 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:52:46,546 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:52:46,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:52:46,548 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:52:46,548 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:52:46,548 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:52:46,549 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:52:46,549 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78eb38d6bf3586b94afef9b9563a4418baaa3316932367911cecf1c3731c38b2 [2024-11-08 16:52:46,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:52:46,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:52:46,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:52:46,983 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:52:46,983 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:52:46,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness_negated.i Unable to find full path for "g++" [2024-11-08 16:52:49,138 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:52:49,820 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:52:49,824 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness_negated.i [2024-11-08 16:52:49,877 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/data/891e95711/1c0c25c363da4fed82b757fa3383b3d1/FLAG067885ed2 [2024-11-08 16:52:50,235 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/data/891e95711/1c0c25c363da4fed82b757fa3383b3d1 [2024-11-08 16:52:50,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:52:50,241 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:52:50,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:52:50,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:52:50,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:52:50,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:52:50" (1/1) ... [2024-11-08 16:52:50,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3618200c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:50, skipping insertion in model container [2024-11-08 16:52:50,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:52:50" (1/1) ... [2024-11-08 16:52:50,439 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:52:50,839 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_82f33220-6c70-4276-a68b-0bb723ce5582/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness_negated.i[4504,4517] [2024-11-08 16:52:50,853 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_82f33220-6c70-4276-a68b-0bb723ce5582/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness_negated.i[4564,4577] [2024-11-08 16:52:52,110 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:52,112 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:52,112 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:52,114 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:52,115 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:52,138 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:52,139 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:52,142 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:52,143 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:53,194 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:53,195 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:53,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:52:53,437 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:52:53,467 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_82f33220-6c70-4276-a68b-0bb723ce5582/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness_negated.i[4504,4517] [2024-11-08 16:52:53,468 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_82f33220-6c70-4276-a68b-0bb723ce5582/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness_negated.i[4564,4577] [2024-11-08 16:52:53,561 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:53,563 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:53,564 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:53,565 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:53,566 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:53,589 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:53,593 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:53,599 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:53,600 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:53,882 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2024-11-08 16:52:53,884 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:53,885 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:52:53,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8723-8734] [2024-11-08 16:52:53,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:52:54,173 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:52:54,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:54 WrapperNode [2024-11-08 16:52:54,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:52:54,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:52:54,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:52:54,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:52:54,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:54" (1/1) ... [2024-11-08 16:52:54,334 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:54" (1/1) ... [2024-11-08 16:52:54,451 INFO L138 Inliner]: procedures = 679, calls = 2636, calls flagged for inlining = 58, calls inlined = 7, statements flattened = 954 [2024-11-08 16:52:54,452 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:52:54,456 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:52:54,456 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:52:54,456 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:52:54,473 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:54" (1/1) ... [2024-11-08 16:52:54,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:54" (1/1) ... [2024-11-08 16:52:54,486 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:54" (1/1) ... [2024-11-08 16:52:54,612 INFO L175 MemorySlicer]: Split 560 memory accesses to 7 slices as follows [2, 257, 6, 240, 8, 42, 5]. 46 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 0, 0, 6, 2, 4, 5]. The 500 writes are split as follows [0, 257, 2, 232, 0, 9, 0]. [2024-11-08 16:52:54,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:54" (1/1) ... [2024-11-08 16:52:54,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:54" (1/1) ... [2024-11-08 16:52:54,663 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:54" (1/1) ... [2024-11-08 16:52:54,666 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:54" (1/1) ... [2024-11-08 16:52:54,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:54" (1/1) ... [2024-11-08 16:52:54,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:54" (1/1) ... [2024-11-08 16:52:54,697 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:52:54,698 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:52:54,698 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:52:54,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:52:54,699 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:54" (1/1) ... [2024-11-08 16:52:54,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:52:54,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:52:54,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:52:54,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:52:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-08 16:52:54,805 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-08 16:52:54,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:52:54,806 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-08 16:52:54,806 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-08 16:52:54,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-08 16:52:54,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-08 16:52:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-08 16:52:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-08 16:52:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-08 16:52:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-08 16:52:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-08 16:52:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:52:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:52:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 16:52:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 16:52:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 16:52:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 16:52:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-08 16:52:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 16:52:54,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 16:52:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 16:52:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:52:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 16:52:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 16:52:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 16:52:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-08 16:52:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-08 16:52:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-08 16:52:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-08 16:52:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:52:54,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:52:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-08 16:52:54,813 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-08 16:52:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-08 16:52:54,813 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-08 16:52:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-08 16:52:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-08 16:52:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-08 16:52:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-08 16:52:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-08 16:52:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-08 16:52:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-08 16:52:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 16:52:54,814 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 16:52:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:52:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 16:52:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 16:52:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 16:52:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 16:52:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-08 16:52:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-08 16:52:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-08 16:52:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-08 16:52:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-08 16:52:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-08 16:52:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-08 16:52:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-08 16:52:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-08 16:52:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-08 16:52:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_advance_nospec [2024-11-08 16:52:54,816 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_advance_nospec [2024-11-08 16:52:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:52:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:52:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 16:52:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 16:52:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 16:52:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 16:52:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-08 16:52:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:52:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:52:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 16:52:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 16:52:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 16:52:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 16:52:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 16:52:55,228 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:52:55,231 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:53:05,381 INFO L? ?]: Removed 99 outVars from TransFormulas that were not future-live. [2024-11-08 16:53:05,381 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:53:05,401 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:53:05,402 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:53:05,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:53:05 BoogieIcfgContainer [2024-11-08 16:53:05,403 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:53:05,406 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:53:05,407 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:53:05,411 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:53:05,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:52:50" (1/3) ... [2024-11-08 16:53:05,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a47b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:53:05, skipping insertion in model container [2024-11-08 16:53:05,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:54" (2/3) ... [2024-11-08 16:53:05,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a47b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:53:05, skipping insertion in model container [2024-11-08 16:53:05,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:53:05" (3/3) ... [2024-11-08 16:53:05,418 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_advance_nospec_harness_negated.i [2024-11-08 16:53:05,443 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:53:05,443 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:53:05,556 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:53:05,565 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;@17d92c71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:53:05,565 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:53:05,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 87 states have (on average 1.3218390804597702) internal successors, (115), 88 states have internal predecessors, (115), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-08 16:53:05,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-08 16:53:05,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:53:05,589 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-08 16:53:05,590 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:53:05,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:53:05,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1324974221, now seen corresponding path program 1 times [2024-11-08 16:53:05,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:53:05,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564282573] [2024-11-08 16:53:05,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:05,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:01,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:55:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:01,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 16:55:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:01,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 16:55:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:01,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 16:55:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:01,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 16:55:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:01,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:55:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:01,532 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 16:55:01,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:01,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564282573] [2024-11-08 16:55:01,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564282573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:55:01,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:55:01,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:55:01,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517950443] [2024-11-08 16:55:01,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:55:01,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 16:55:01,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:01,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 16:55:01,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:55:01,594 INFO L87 Difference]: Start difference. First operand has 119 states, 87 states have (on average 1.3218390804597702) internal successors, (115), 88 states have internal predecessors, (115), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 16:55:01,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:01,641 INFO L93 Difference]: Finished difference Result 228 states and 326 transitions. [2024-11-08 16:55:01,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 16:55:01,644 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 49 [2024-11-08 16:55:01,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:01,655 INFO L225 Difference]: With dead ends: 228 [2024-11-08 16:55:01,656 INFO L226 Difference]: Without dead ends: 109 [2024-11-08 16:55:01,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:55:01,665 INFO L432 NwaCegarLoop]: 159 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, 159 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 [2024-11-08 16:55:01,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:55:01,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-08 16:55:01,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-08 16:55:01,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 79 states have (on average 1.3037974683544304) internal successors, (103), 81 states have internal predecessors, (103), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 16:55:01,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 146 transitions. [2024-11-08 16:55:01,727 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 146 transitions. Word has length 49 [2024-11-08 16:55:01,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:01,729 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 146 transitions. [2024-11-08 16:55:01,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 16:55:01,729 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 146 transitions. [2024-11-08 16:55:01,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-08 16:55:01,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:01,733 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-08 16:55:01,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:55:01,734 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:01,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:01,734 INFO L85 PathProgramCache]: Analyzing trace with hash 578665481, now seen corresponding path program 1 times [2024-11-08 16:55:01,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:01,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106167102] [2024-11-08 16:55:01,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:01,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:25,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:57:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:25,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 16:57:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:26,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 16:57:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:26,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 16:57:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:26,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 16:57:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:26,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:57:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:26,115 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 16:57:26,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:26,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106167102] [2024-11-08 16:57:26,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106167102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:57:26,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114204588] [2024-11-08 16:57:26,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:26,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:57:26,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:57:26,122 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:57:26,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:59:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:46,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 7581 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 16:59:46,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:47,264 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 16:59:47,264 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:59:47,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114204588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:47,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:59:47,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-08 16:59:47,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038111831] [2024-11-08 16:59:47,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:47,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:59:47,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:47,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:59:47,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:59:47,273 INFO L87 Difference]: Start difference. First operand 109 states and 146 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 16:59:48,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:48,711 INFO L93 Difference]: Finished difference Result 204 states and 279 transitions. [2024-11-08 16:59:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:59:48,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 49 [2024-11-08 16:59:48,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:48,715 INFO L225 Difference]: With dead ends: 204 [2024-11-08 16:59:48,715 INFO L226 Difference]: Without dead ends: 112 [2024-11-08 16:59:48,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:59:48,718 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 152 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:48,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 334 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 16:59:48,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-08 16:59:48,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-08 16:59:48,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 81 states have (on average 1.2962962962962963) internal successors, (105), 84 states have internal predecessors, (105), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (24), 20 states have call predecessors, (24), 20 states have call successors, (24) [2024-11-08 16:59:48,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 152 transitions. [2024-11-08 16:59:48,749 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 152 transitions. Word has length 49 [2024-11-08 16:59:48,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:48,750 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 152 transitions. [2024-11-08 16:59:48,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 16:59:48,751 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 152 transitions. [2024-11-08 16:59:48,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-08 16:59:48,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:48,752 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-08 16:59:48,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:59:48,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:48,954 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:59:48,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:48,954 INFO L85 PathProgramCache]: Analyzing trace with hash 513097582, now seen corresponding path program 1 times [2024-11-08 16:59:48,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:48,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761417673] [2024-11-08 16:59:48,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:48,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:56,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:01:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:56,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 17:01:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:56,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:01:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:56,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:01:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:56,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 17:01:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:56,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:01:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:56,923 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 17:01:56,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:56,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761417673] [2024-11-08 17:01:56,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761417673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:01:56,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785589446] [2024-11-08 17:01:56,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:56,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:01:56,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:01:56,930 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:01:56,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:03:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:59,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 7586 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 17:03:59,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:04:00,229 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:04:00,229 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:04:00,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785589446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:04:00,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:04:00,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-08 17:04:00,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117153499] [2024-11-08 17:04:00,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:04:00,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:04:00,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:04:00,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:04:00,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:04:00,233 INFO L87 Difference]: Start difference. First operand 112 states and 152 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 17:04:01,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:04:01,955 INFO L93 Difference]: Finished difference Result 197 states and 269 transitions. [2024-11-08 17:04:01,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:04:01,956 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 51 [2024-11-08 17:04:01,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:04:01,958 INFO L225 Difference]: With dead ends: 197 [2024-11-08 17:04:01,958 INFO L226 Difference]: Without dead ends: 112 [2024-11-08 17:04:01,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-08 17:04:01,961 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 233 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:04:01,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 447 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 17:04:01,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-08 17:04:01,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-08 17:04:01,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 81 states have (on average 1.2962962962962963) internal successors, (105), 84 states have internal predecessors, (105), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) [2024-11-08 17:04:01,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 150 transitions. [2024-11-08 17:04:01,979 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 150 transitions. Word has length 51 [2024-11-08 17:04:01,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:04:01,980 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 150 transitions. [2024-11-08 17:04:01,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 17:04:01,981 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 150 transitions. [2024-11-08 17:04:01,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-08 17:04:01,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:04:01,983 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-11-08 17:04:02,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 17:04:02,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:04:02,184 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:04:02,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:04:02,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1201620360, now seen corresponding path program 1 times [2024-11-08 17:04:02,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:04:02,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928267048] [2024-11-08 17:04:02,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:04:02,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:06:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:14,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:06:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:14,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 17:06:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:14,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:06:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:14,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:06:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:14,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:06:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:14,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 17:06:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:14,777 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 17:06:14,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:06:14,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928267048] [2024-11-08 17:06:14,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928267048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:06:14,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646883251] [2024-11-08 17:06:14,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:06:14,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:06:14,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:06:14,784 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:06:14,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f33220-6c70-4276-a68b-0bb723ce5582/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process