./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/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_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/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_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/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 c3c4a9e584379924ee65c46a83a6da8fed615179d4e8c5775609e5e7922fb6da --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:51:44,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:51:44,865 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-08 16:51:44,872 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:51:44,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:51:44,922 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:51:44,922 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:51:44,923 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:51:44,923 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:51:44,924 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:51:44,924 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:51:44,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:51:44,926 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:51:44,926 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:51:44,926 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:51:44,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:51:44,927 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:51:44,931 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:51:44,932 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:51:44,932 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:51:44,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:51:44,933 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:51:44,933 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:51:44,933 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:51:44,934 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:51:44,934 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:51:44,934 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:51:44,934 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:51:44,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:51:44,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:51:44,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:51:44,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:51:44,936 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:51:44,936 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:51:44,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:51:44,937 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:51:44,944 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:51:44,944 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:51:44,944 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:51:44,945 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_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3c4a9e584379924ee65c46a83a6da8fed615179d4e8c5775609e5e7922fb6da [2024-11-08 16:51:45,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:51:45,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:51:45,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:51:45,341 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:51:45,341 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:51:45,343 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i Unable to find full path for "g++" [2024-11-08 16:51:47,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:51:48,115 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:51:48,115 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i [2024-11-08 16:51:48,149 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/data/a4cb88951/e4a883c9d7a64e9fb5aacab9e6b6814e/FLAG3f25cdf1f [2024-11-08 16:51:48,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/data/a4cb88951/e4a883c9d7a64e9fb5aacab9e6b6814e [2024-11-08 16:51:48,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:51:48,559 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:51:48,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:51:48,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:51:48,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:51:48,568 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:51:48" (1/1) ... [2024-11-08 16:51:48,570 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc5ece4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:48, skipping insertion in model container [2024-11-08 16:51:48,570 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:51:48" (1/1) ... [2024-11-08 16:51:48,720 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:51:49,111 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_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i[4505,4518] [2024-11-08 16:51:49,124 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_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i[4565,4578] [2024-11-08 16:51:50,604 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:50,605 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:50,610 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:50,612 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:50,614 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:50,635 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:50,637 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:50,639 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:50,640 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:51,805 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:51,805 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:51,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:51:52,042 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:51:52,066 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_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i[4505,4518] [2024-11-08 16:51:52,070 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_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i[4565,4578] [2024-11-08 16:51:52,149 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:52,149 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:52,150 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:52,151 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:52,152 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:52,161 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:52,161 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:52,163 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:52,164 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:52,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2024-11-08 16:51:52,377 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:52,378 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:51:52,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2024-11-08 16:51:52,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:51:52,815 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:51:52,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:52 WrapperNode [2024-11-08 16:51:52,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:51:52,817 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:51:52,818 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:51:52,818 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:51:52,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:52" (1/1) ... [2024-11-08 16:51:52,991 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:52" (1/1) ... [2024-11-08 16:51:53,107 INFO L138 Inliner]: procedures = 680, calls = 2654, calls flagged for inlining = 59, calls inlined = 6, statements flattened = 928 [2024-11-08 16:51:53,108 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:51:53,109 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:51:53,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:51:53,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:51:53,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:52" (1/1) ... [2024-11-08 16:51:53,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:52" (1/1) ... [2024-11-08 16:51:53,147 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:52" (1/1) ... [2024-11-08 16:51:53,263 INFO L175 MemorySlicer]: Split 558 memory accesses to 7 slices as follows [2, 257, 238, 6, 4, 46, 5]. 46 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 6, 0, 0, 4, 5]. The 494 writes are split as follows [0, 257, 232, 2, 0, 3, 0]. [2024-11-08 16:51:53,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:52" (1/1) ... [2024-11-08 16:51:53,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:52" (1/1) ... [2024-11-08 16:51:53,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:52" (1/1) ... [2024-11-08 16:51:53,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:52" (1/1) ... [2024-11-08 16:51:53,339 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:52" (1/1) ... [2024-11-08 16:51:53,346 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:52" (1/1) ... [2024-11-08 16:51:53,360 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:51:53,361 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:51:53,361 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:51:53,362 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:51:53,363 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:52" (1/1) ... [2024-11-08 16:51:53,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:51:53,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:51:53,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:51:53,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:51:53,483 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-08 16:51:53,485 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-08 16:51:53,486 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lexical [2024-11-08 16:51:53,486 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lexical [2024-11-08 16:51:53,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:51:53,486 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-08 16:51:53,486 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-08 16:51:53,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-08 16:51:53,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-08 16:51:53,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-08 16:51:53,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-08 16:51:53,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-08 16:51:53,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-08 16:51:53,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-08 16:51:53,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:51:53,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:51:53,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 16:51:53,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 16:51:53,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 16:51:53,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 16:51:53,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-08 16:51:53,491 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2024-11-08 16:51:53,492 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2024-11-08 16:51:53,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 16:51:53,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 16:51:53,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 16:51:53,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:51:53,493 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-08 16:51:53,494 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-08 16:51:53,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 16:51:53,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 16:51:53,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 16:51:53,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-08 16:51:53,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-08 16:51:53,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-08 16:51:53,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-08 16:51:53,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:51:53,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:51:53,498 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-08 16:51:53,498 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-08 16:51:53,498 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-08 16:51:53,500 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-08 16:51:53,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-08 16:51:53,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-08 16:51:53,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-08 16:51:53,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-08 16:51:53,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-08 16:51:53,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-08 16:51:53,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-08 16:51:53,501 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 16:51:53,502 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 16:51:53,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:51:53,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 16:51:53,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 16:51:53,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 16:51:53,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 16:51:53,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-08 16:51:53,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-08 16:51:53,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-08 16:51:53,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-08 16:51:53,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-08 16:51:53,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-08 16:51:53,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-08 16:51:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-08 16:51:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-08 16:51:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-08 16:51:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-08 16:51:53,508 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-08 16:51:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:51:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:51:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 16:51:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 16:51:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 16:51:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 16:51:53,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-08 16:51:53,511 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-08 16:51:53,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-08 16:51:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:51:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:51:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 16:51:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 16:51:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 16:51:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 16:51:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 16:51:53,975 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:51:53,979 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:52:04,792 INFO L? ?]: Removed 95 outVars from TransFormulas that were not future-live. [2024-11-08 16:52:04,792 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:52:04,815 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:52:04,817 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:52:04,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:52:04 BoogieIcfgContainer [2024-11-08 16:52:04,818 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:52:04,824 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:52:04,824 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:52:04,828 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:52:04,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:51:48" (1/3) ... [2024-11-08 16:52:04,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cc5a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:52:04, skipping insertion in model container [2024-11-08 16:52:04,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:51:52" (2/3) ... [2024-11-08 16:52:04,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cc5a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:52:04, skipping insertion in model container [2024-11-08 16:52:04,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:52:04" (3/3) ... [2024-11-08 16:52:04,834 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lexical_harness_negated.i [2024-11-08 16:52:04,857 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:52:04,858 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:52:04,961 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:52:04,973 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;@87f966b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:52:04,973 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:52:04,980 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 90 states have (on average 1.2222222222222223) internal successors, (110), 91 states have internal predecessors, (110), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-08 16:52:04,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 16:52:04,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:52:04,997 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 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] [2024-11-08 16:52:04,998 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:52:05,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:05,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1411432407, now seen corresponding path program 1 times [2024-11-08 16:52:05,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:52:05,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726882524] [2024-11-08 16:52:05,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:05,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:53:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:57,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:53:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:57,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 16:53:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:57,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:53:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:58,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:53:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:58,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:53:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:58,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 16:53:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:58,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 16:53:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:58,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 16:53:58,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:58,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 16:53:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:58,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 16:53:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:58,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 16:53:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:58,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 16:53:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:58,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 16:53:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:58,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 16:53:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:58,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 16:53:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:58,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 16:53:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:58,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 16:53:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:58,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 16:53:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:58,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 16:53:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:58,335 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-08 16:53:58,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:53:58,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726882524] [2024-11-08 16:53:58,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726882524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:53:58,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:53:58,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:53:58,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357833735] [2024-11-08 16:53:58,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:53:58,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:53:58,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:53:58,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:53:58,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:53:58,377 INFO L87 Difference]: Start difference. First operand has 149 states, 90 states have (on average 1.2222222222222223) internal successors, (110), 91 states have internal predecessors, (110), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-08 16:54:02,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 16:54:06,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:54:06,347 INFO L93 Difference]: Finished difference Result 297 states and 435 transitions. [2024-11-08 16:54:06,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:54:06,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 120 [2024-11-08 16:54:06,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:54:06,363 INFO L225 Difference]: With dead ends: 297 [2024-11-08 16:54:06,364 INFO L226 Difference]: Without dead ends: 146 [2024-11-08 16:54:06,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:54:06,374 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 132 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 122 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:54:06,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 163 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 187 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2024-11-08 16:54:06,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-08 16:54:06,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2024-11-08 16:54:06,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 85 states have (on average 1.2) internal successors, (102), 86 states have internal predecessors, (102), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-08 16:54:06,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 193 transitions. [2024-11-08 16:54:06,477 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 193 transitions. Word has length 120 [2024-11-08 16:54:06,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:54:06,477 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 193 transitions. [2024-11-08 16:54:06,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-08 16:54:06,478 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 193 transitions. [2024-11-08 16:54:06,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 16:54:06,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:54:06,486 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 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] [2024-11-08 16:54:06,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:54:06,487 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:54:06,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:54:06,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1331612261, now seen corresponding path program 1 times [2024-11-08 16:54:06,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:54:06,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007030771] [2024-11-08 16:54:06,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:54:06,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:56:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:05,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:56:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:05,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 16:56:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:56:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:56:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:56:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 16:56:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 16:56:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 16:56:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 16:56:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 16:56:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 16:56:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 16:56:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 16:56:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 16:56:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 16:56:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 16:56:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 16:56:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 16:56:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 16:56:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:06,905 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2024-11-08 16:56:06,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:56:06,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007030771] [2024-11-08 16:56:06,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007030771] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:56:06,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983384259] [2024-11-08 16:56:06,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:56:06,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:56:06,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:56:06,912 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:56:06,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:58:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:19,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 7795 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 16:58:19,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:20,398 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-08 16:58:20,401 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:58:20,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983384259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:20,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:58:20,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-08 16:58:20,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769976293] [2024-11-08 16:58:20,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:20,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:58:20,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:20,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:58:20,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:58:20,408 INFO L87 Difference]: Start difference. First operand 143 states and 193 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-08 16:58:22,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:22,484 INFO L93 Difference]: Finished difference Result 282 states and 385 transitions. [2024-11-08 16:58:22,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:58:22,486 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 120 [2024-11-08 16:58:22,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:22,488 INFO L225 Difference]: With dead ends: 282 [2024-11-08 16:58:22,489 INFO L226 Difference]: Without dead ends: 146 [2024-11-08 16:58:22,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:58:22,491 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 196 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:22,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 549 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 16:58:22,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-08 16:58:22,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-11-08 16:58:22,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 87 states have (on average 1.1954022988505748) internal successors, (104), 89 states have internal predecessors, (104), 46 states have call successors, (46), 11 states have call predecessors, (46), 12 states have return successors, (51), 45 states have call predecessors, (51), 45 states have call successors, (51) [2024-11-08 16:58:22,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 201 transitions. [2024-11-08 16:58:22,518 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 201 transitions. Word has length 120 [2024-11-08 16:58:22,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:22,519 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 201 transitions. [2024-11-08 16:58:22,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-08 16:58:22,520 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 201 transitions. [2024-11-08 16:58:22,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 16:58:22,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:22,531 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 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] [2024-11-08 16:58:22,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 16:58:22,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:22,732 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:22,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:22,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1415898112, now seen corresponding path program 1 times [2024-11-08 16:58:22,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:22,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256453883] [2024-11-08 16:58:22,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:22,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:33,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:00:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:33,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 17:00:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:34,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:00:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:34,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 17:00:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:34,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 17:00:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:34,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 17:00:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:34,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 17:00:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:34,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 17:00:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:35,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 17:00:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:35,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 17:00:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:35,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 17:00:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:35,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 17:00:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:35,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 17:00:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:35,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 17:00:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:35,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 17:00:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:35,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 17:00:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:35,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 17:00:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:35,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 17:00:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:35,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 17:00:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:35,809 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-08 17:00:35,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:35,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256453883] [2024-11-08 17:00:35,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256453883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:00:35,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304908183] [2024-11-08 17:00:35,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:35,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:35,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:35,812 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:00:35,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:02:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:25,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 7800 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 17:02:25,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:02:27,465 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-08 17:02:27,465 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:02:27,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304908183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:02:27,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:02:27,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2024-11-08 17:02:27,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18507007] [2024-11-08 17:02:27,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:02:27,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:02:27,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:02:27,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:02:27,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-11-08 17:02:27,469 INFO L87 Difference]: Start difference. First operand 146 states and 201 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-08 17:02:30,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:02:30,662 INFO L93 Difference]: Finished difference Result 240 states and 334 transitions. [2024-11-08 17:02:30,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:02:30,663 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 122 [2024-11-08 17:02:30,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:02:30,666 INFO L225 Difference]: With dead ends: 240 [2024-11-08 17:02:30,666 INFO L226 Difference]: Without dead ends: 148 [2024-11-08 17:02:30,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:02:30,669 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 210 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:02:30,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 613 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 17:02:30,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-08 17:02:30,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 146. [2024-11-08 17:02:30,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 87 states have (on average 1.1954022988505748) internal successors, (104), 89 states have internal predecessors, (104), 46 states have call successors, (46), 11 states have call predecessors, (46), 12 states have return successors, (49), 45 states have call predecessors, (49), 45 states have call successors, (49) [2024-11-08 17:02:30,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 199 transitions. [2024-11-08 17:02:30,703 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 199 transitions. Word has length 122 [2024-11-08 17:02:30,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:02:30,704 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 199 transitions. [2024-11-08 17:02:30,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-08 17:02:30,704 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 199 transitions. [2024-11-08 17:02:30,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-08 17:02:30,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:02:30,708 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 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] [2024-11-08 17:02:30,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 17:02:30,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:02:30,909 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:02:30,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:02:30,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1254915338, now seen corresponding path program 2 times [2024-11-08 17:02:30,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:02:30,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330777081] [2024-11-08 17:02:30,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:02:30,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:04:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:21,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:04:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:21,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 17:04:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:21,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:04:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:21,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 17:04:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:21,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 17:04:21,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:21,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 17:04:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:21,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 17:04:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:21,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 17:04:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:21,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 17:04:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:21,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 17:04:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:21,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 17:04:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:21,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 17:04:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:21,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:04:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:22,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 17:04:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:22,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 17:04:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:22,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 17:04:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:22,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 17:04:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:22,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 17:04:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:22,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 17:04:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:22,144 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2024-11-08 17:04:22,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:04:22,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330777081] [2024-11-08 17:04:22,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330777081] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:04:22,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743516750] [2024-11-08 17:04:22,145 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:04:22,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:04:22,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:04:22,147 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:04:22,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3c7ee7-3eb6-4ce2-936c-21fc4c597d62/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process