./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464b01a0-ecc4-4c09-a191-31e9c8e667db/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464b01a0-ecc4-4c09-a191-31e9c8e667db/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464b01a0-ecc4-4c09-a191-31e9c8e667db/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464b01a0-ecc4-4c09-a191-31e9c8e667db/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464b01a0-ecc4-4c09-a191-31e9c8e667db/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464b01a0-ecc4-4c09-a191-31e9c8e667db/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 689a562e38ace49351de33b47cbcb3c6d5f59acf10f911a7928d5d2dec3921f0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:18:16,655 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:18:16,750 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464b01a0-ecc4-4c09-a191-31e9c8e667db/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 05:18:16,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:18:16,762 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:18:16,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:18:16,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:18:16,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:18:16,802 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:18:16,802 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:18:16,802 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:18:16,803 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:18:16,803 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:18:16,803 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:18:16,804 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:18:16,804 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:18:16,805 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:18:16,805 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:18:16,805 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:18:16,805 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:18:16,805 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:18:16,805 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:18:16,806 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:18:16,806 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:18:16,806 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:18:16,806 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:18:16,806 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:18:16,806 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:18:16,806 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:18:16,806 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:18:16,806 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:18:16,806 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:18:16,806 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:18:16,806 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:18:16,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:18:16,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:18:16,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:18:16,807 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:18:16,807 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:18:16,807 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:18:16,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:18:16,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:18:16,807 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:18:16,807 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:18:16,807 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_464b01a0-ecc4-4c09-a191-31e9c8e667db/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> 689a562e38ace49351de33b47cbcb3c6d5f59acf10f911a7928d5d2dec3921f0 [2024-11-14 05:18:17,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:18:17,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:18:17,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:18:17,152 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:18:17,153 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:18:17,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464b01a0-ecc4-4c09-a191-31e9c8e667db/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i Unable to find full path for "g++" [2024-11-14 05:18:19,130 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:18:19,658 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:18:19,658 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464b01a0-ecc4-4c09-a191-31e9c8e667db/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i [2024-11-14 05:18:19,705 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464b01a0-ecc4-4c09-a191-31e9c8e667db/bin/utaipan-verify-sOmjnqqW8E/data/34f4d12b2/e385e08694364a54a8e832bde6b719b5/FLAG48bc985cd [2024-11-14 05:18:19,731 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464b01a0-ecc4-4c09-a191-31e9c8e667db/bin/utaipan-verify-sOmjnqqW8E/data/34f4d12b2/e385e08694364a54a8e832bde6b719b5 [2024-11-14 05:18:19,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:18:19,736 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:18:19,738 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:18:19,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:18:19,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:18:19,745 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:18:19" (1/1) ... [2024-11-14 05:18:19,746 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38bc2e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:19, skipping insertion in model container [2024-11-14 05:18:19,746 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:18:19" (1/1) ... [2024-11-14 05:18:19,869 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:18:20,219 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_464b01a0-ecc4-4c09-a191-31e9c8e667db/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i[4493,4506] [2024-11-14 05:18:20,230 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_464b01a0-ecc4-4c09-a191-31e9c8e667db/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i[4553,4566] [2024-11-14 05:18:21,432 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:21,433 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:21,434 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:21,435 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:21,436 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:21,454 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:21,455 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:21,457 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:21,458 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:22,439 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:22,440 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:22,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:18:22,590 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:18:22,610 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_464b01a0-ecc4-4c09-a191-31e9c8e667db/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i[4493,4506] [2024-11-14 05:18:22,613 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_464b01a0-ecc4-4c09-a191-31e9c8e667db/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i[4553,4566] [2024-11-14 05:18:22,680 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:22,681 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:22,682 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:22,682 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:22,683 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:22,691 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:22,691 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:22,693 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:22,694 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:22,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8259] [2024-11-14 05:18:22,909 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:22,910 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 05:18:22,926 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8745-8756] [2024-11-14 05:18:22,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:18:23,257 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:18:23,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:23 WrapperNode [2024-11-14 05:18:23,259 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:18:23,260 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:18:23,261 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:18:23,261 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:18:23,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:23" (1/1) ... [2024-11-14 05:18:23,364 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:23" (1/1) ... [2024-11-14 05:18:23,467 INFO L138 Inliner]: procedures = 680, calls = 2643, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 869 [2024-11-14 05:18:23,470 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:18:23,471 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:18:23,471 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:18:23,471 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:18:23,483 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:23" (1/1) ... [2024-11-14 05:18:23,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:23" (1/1) ... [2024-11-14 05:18:23,493 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:23" (1/1) ... [2024-11-14 05:18:23,493 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:23" (1/1) ... [2024-11-14 05:18:23,603 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:23" (1/1) ... [2024-11-14 05:18:23,611 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:23" (1/1) ... [2024-11-14 05:18:23,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:23" (1/1) ... [2024-11-14 05:18:23,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:23" (1/1) ... [2024-11-14 05:18:23,648 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:18:23,656 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:18:23,656 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:18:23,656 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:18:23,657 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:23" (1/1) ... [2024-11-14 05:18:23,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:18:23,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464b01a0-ecc4-4c09-a191-31e9c8e667db/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:18:23,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464b01a0-ecc4-4c09-a191-31e9c8e667db/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:18:23,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464b01a0-ecc4-4c09-a191-31e9c8e667db/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:18:23,736 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-14 05:18:23,737 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-14 05:18:23,737 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-14 05:18:23,737 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-14 05:18:23,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:18:23,738 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-14 05:18:23,738 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-14 05:18:23,738 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_append [2024-11-14 05:18:23,739 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_append [2024-11-14 05:18:23,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 05:18:23,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:18:23,739 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-14 05:18:23,739 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-14 05:18:23,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:18:23,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:18:23,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 05:18:23,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:18:23,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 05:18:23,740 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-14 05:18:23,740 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-14 05:18:23,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:18:23,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:18:23,740 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-14 05:18:23,740 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-14 05:18:23,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 05:18:23,742 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:18:23,742 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:18:23,742 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-14 05:18:23,742 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-14 05:18:23,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:18:23,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:18:23,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 05:18:23,743 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-14 05:18:23,743 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-14 05:18:23,743 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2024-11-14 05:18:23,743 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2024-11-14 05:18:23,743 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-14 05:18:23,743 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-14 05:18:23,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:18:23,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:18:24,119 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:18:24,122 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:18:31,000 INFO L? ?]: Removed 97 outVars from TransFormulas that were not future-live. [2024-11-14 05:18:31,001 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:18:32,438 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:18:32,439 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:18:32,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:18:32 BoogieIcfgContainer [2024-11-14 05:18:32,439 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:18:32,441 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:18:32,441 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:18:32,447 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:18:32,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:18:19" (1/3) ... [2024-11-14 05:18:32,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f67b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:18:32, skipping insertion in model container [2024-11-14 05:18:32,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:23" (2/3) ... [2024-11-14 05:18:32,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f67b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:18:32, skipping insertion in model container [2024-11-14 05:18:32,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:18:32" (3/3) ... [2024-11-14 05:18:32,451 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_harness_negated.i [2024-11-14 05:18:32,465 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:18:32,467 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_append_harness_negated.i that has 14 procedures, 124 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:18:32,527 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:18:32,541 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=FINITE_AUTOMATA, 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;@791a5961, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:18:32,541 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:18:32,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 62 states have internal predecessors, (70), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 05:18:32,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 05:18:32,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:18:32,558 INFO L215 NwaCegarLoop]: trace histogram [7, 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] [2024-11-14 05:18:32,558 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:18:32,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:18:32,564 INFO L85 PathProgramCache]: Analyzing trace with hash -480647682, now seen corresponding path program 1 times [2024-11-14 05:18:32,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:18:32,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797941610] [2024-11-14 05:18:32,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:18:32,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:20:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:20:58,231 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-14 05:20:58,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:20:58,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797941610] [2024-11-14 05:20:58,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797941610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:20:58,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:20:58,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-14 05:20:58,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623236924] [2024-11-14 05:20:58,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:20:58,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 05:20:58,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:20:58,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 05:20:58,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-14 05:20:58,265 INFO L87 Difference]: Start difference. First operand has 124 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 62 states have internal predecessors, (70), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 14 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 7 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-14 05:21:00,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:02,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:05,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:07,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:09,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:12,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:14,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:16,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:19,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:21,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:23,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:26,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:33,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:33,527 INFO L93 Difference]: Finished difference Result 261 states and 385 transitions. [2024-11-14 05:21:33,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 05:21:33,530 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 7 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 63 [2024-11-14 05:21:33,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:33,547 INFO L225 Difference]: With dead ends: 261 [2024-11-14 05:21:33,547 INFO L226 Difference]: Without dead ends: 179 [2024-11-14 05:21:33,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-11-14 05:21:33,554 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 69 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 47 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:33,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 921 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 595 Invalid, 12 Unknown, 0 Unchecked, 33.9s Time] [2024-11-14 05:21:33,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-14 05:21:33,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 157. [2024-11-14 05:21:33,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 76 states have (on average 1.131578947368421) internal successors, (86), 79 states have internal predecessors, (86), 65 states have call successors, (65), 15 states have call predecessors, (65), 15 states have return successors, (65), 62 states have call predecessors, (65), 64 states have call successors, (65) [2024-11-14 05:21:33,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 216 transitions. [2024-11-14 05:21:33,660 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 216 transitions. Word has length 63 [2024-11-14 05:21:33,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:33,661 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 216 transitions. [2024-11-14 05:21:33,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 7 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-14 05:21:33,661 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 216 transitions. [2024-11-14 05:21:33,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 05:21:33,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:33,664 INFO L215 NwaCegarLoop]: trace histogram [7, 3, 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] [2024-11-14 05:21:33,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:21:33,665 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:21:33,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:33,666 INFO L85 PathProgramCache]: Analyzing trace with hash -2020026083, now seen corresponding path program 1 times [2024-11-14 05:21:33,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:33,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303158347] [2024-11-14 05:21:33,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:33,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:09,754 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-14 05:24:09,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:09,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303158347] [2024-11-14 05:24:09,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303158347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:09,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218476642] [2024-11-14 05:24:09,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:09,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:09,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464b01a0-ecc4-4c09-a191-31e9c8e667db/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:09,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464b01a0-ecc4-4c09-a191-31e9c8e667db/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:09,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464b01a0-ecc4-4c09-a191-31e9c8e667db/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process