./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje --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 6e8329de8885610e11451d8b1311f161005fbaac7c4b7180f37a9501d850f1ce --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:00:50,195 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:00:50,296 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 07:00:50,307 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:00:50,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:00:50,359 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:00:50,360 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:00:50,361 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:00:50,363 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:00:50,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:00:50,366 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:00:50,367 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:00:50,368 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:00:50,369 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:00:50,373 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:00:50,373 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:00:50,374 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:00:50,374 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:00:50,375 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:00:50,375 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:00:50,376 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:00:50,379 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:00:50,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:00:50,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:00:50,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:00:50,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:00:50,383 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:00:50,383 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:00:50,384 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:00:50,384 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:00:50,384 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:00:50,385 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:00:50,385 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:00:50,386 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:00:50,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:00:50,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:00:50,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:00:50,388 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:00:50,389 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:00:50,389 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:00:50,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:00:50,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:00:50,391 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:00:50,392 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:00:50,393 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e8329de8885610e11451d8b1311f161005fbaac7c4b7180f37a9501d850f1ce [2024-11-09 07:00:50,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:00:50,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:00:50,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:00:50,829 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:00:50,830 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:00:50,832 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i Unable to find full path for "g++" [2024-11-09 07:00:53,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:00:54,138 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:00:54,142 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i [2024-11-09 07:00:54,188 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/data/8cd1dbc5c/0f0d13ef33aa47ddac2499f2c3a4cf60/FLAG9280e2c35 [2024-11-09 07:00:54,577 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/data/8cd1dbc5c/0f0d13ef33aa47ddac2499f2c3a4cf60 [2024-11-09 07:00:54,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:00:54,583 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:00:54,585 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:00:54,586 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:00:54,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:00:54,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:00:54" (1/1) ... [2024-11-09 07:00:54,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c70b249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:54, skipping insertion in model container [2024-11-09 07:00:54,600 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:00:54" (1/1) ... [2024-11-09 07:00:54,784 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:00:55,239 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_b6238f25-5fc5-46c6-9230-edf231f5b311/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4492,4505] [2024-11-09 07:00:55,252 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_b6238f25-5fc5-46c6-9230-edf231f5b311/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4552,4565] [2024-11-09 07:00:56,609 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:56,610 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:56,611 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:56,613 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:56,615 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:56,635 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:56,637 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:56,640 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:56,641 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:57,715 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:57,716 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:57,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:00:57,960 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:00:57,991 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_b6238f25-5fc5-46c6-9230-edf231f5b311/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4492,4505] [2024-11-09 07:00:57,992 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_b6238f25-5fc5-46c6-9230-edf231f5b311/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4552,4565] [2024-11-09 07:00:58,094 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:58,095 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:58,099 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:58,100 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:58,101 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:58,114 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:58,119 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:58,124 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:58,125 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:58,397 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-11-09 07:00:58,400 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:58,400 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 07:00:58,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-11-09 07:00:58,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:00:58,910 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:00:58,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:58 WrapperNode [2024-11-09 07:00:58,911 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:00:58,912 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:00:58,912 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:00:58,912 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:00:58,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:58" (1/1) ... [2024-11-09 07:00:59,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:58" (1/1) ... [2024-11-09 07:00:59,156 INFO L138 Inliner]: procedures = 680, calls = 2609, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 802 [2024-11-09 07:00:59,161 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:00:59,162 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:00:59,162 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:00:59,162 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:00:59,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:58" (1/1) ... [2024-11-09 07:00:59,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:58" (1/1) ... [2024-11-09 07:00:59,202 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:58" (1/1) ... [2024-11-09 07:00:59,203 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:58" (1/1) ... [2024-11-09 07:00:59,266 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:58" (1/1) ... [2024-11-09 07:00:59,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:58" (1/1) ... [2024-11-09 07:00:59,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:58" (1/1) ... [2024-11-09 07:00:59,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:58" (1/1) ... [2024-11-09 07:00:59,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:00:59,308 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:00:59,308 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:00:59,308 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:00:59,309 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:58" (1/1) ... [2024-11-09 07:00:59,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:00:59,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:00:59,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:00:59,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:00:59,422 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2024-11-09 07:00:59,423 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2024-11-09 07:00:59,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:00:59,425 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 07:00:59,425 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 07:00:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 07:00:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:00:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 07:00:59,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 07:00:59,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:00:59,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:00:59,427 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-09 07:00:59,427 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-09 07:00:59,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:00:59,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:00:59,428 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 07:00:59,428 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 07:00:59,428 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-09 07:00:59,428 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-09 07:00:59,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 07:00:59,429 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-09 07:00:59,429 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-09 07:00:59,429 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 07:00:59,429 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 07:00:59,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:00:59,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 07:00:59,430 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-09 07:00:59,430 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-09 07:00:59,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:00:59,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:00:59,779 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:00:59,782 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:01:07,730 INFO L? ?]: Removed 69 outVars from TransFormulas that were not future-live. [2024-11-09 07:01:07,730 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:01:08,387 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:01:08,387 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:01:08,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:01:08 BoogieIcfgContainer [2024-11-09 07:01:08,388 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:01:08,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:01:08,391 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:01:08,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:01:08,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:00:54" (1/3) ... [2024-11-09 07:01:08,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8d149e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:01:08, skipping insertion in model container [2024-11-09 07:01:08,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:58" (2/3) ... [2024-11-09 07:01:08,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8d149e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:01:08, skipping insertion in model container [2024-11-09 07:01:08,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:01:08" (3/3) ... [2024-11-09 07:01:08,399 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_eq_c_str_harness-1.i [2024-11-09 07:01:08,424 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:01:08,424 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:01:08,511 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:01:08,519 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;@5c0eec03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:01:08,519 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:01:08,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 50 states have internal predecessors, (62), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-09 07:01:08,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-09 07:01:08,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:08,538 INFO L215 NwaCegarLoop]: trace histogram [5, 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] [2024-11-09 07:01:08,539 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:01:08,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:08,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1406142837, now seen corresponding path program 1 times [2024-11-09 07:01:08,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:01:08,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114358042] [2024-11-09 07:01:08,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:08,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:21,951 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:03:21,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:03:21,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114358042] [2024-11-09 07:03:21,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114358042] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:03:21,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206923134] [2024-11-09 07:03:21,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:21,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:03:21,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:03:21,959 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:03:21,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:05:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:23,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 7518 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 07:05:23,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:24,156 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:05:24,156 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:24,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206923134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:24,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:05:24,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 8 [2024-11-09 07:05:24,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223345786] [2024-11-09 07:05:24,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:24,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:05:24,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:05:24,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:05:24,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:05:24,204 INFO L87 Difference]: Start difference. First operand has 84 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 50 states have internal predecessors, (62), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 7 states, 5 states have (on average 4.6) internal successors, (23), 7 states have internal predecessors, (23), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 07:05:26,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:28,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:31,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:33,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:35,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:38,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:39,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:05:39,933 INFO L93 Difference]: Finished difference Result 136 states and 192 transitions. [2024-11-09 07:05:39,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:05:39,940 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.6) internal successors, (23), 7 states have internal predecessors, (23), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 53 [2024-11-09 07:05:39,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:05:39,954 INFO L225 Difference]: With dead ends: 136 [2024-11-09 07:05:39,954 INFO L226 Difference]: Without dead ends: 82 [2024-11-09 07:05:39,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:05:39,962 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 7 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:05:39,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 514 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 6 Unknown, 0 Unchecked, 15.5s Time] [2024-11-09 07:05:39,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-09 07:05:40,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-09 07:05:40,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 48 states have internal predecessors, (58), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 07:05:40,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 109 transitions. [2024-11-09 07:05:40,024 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 109 transitions. Word has length 53 [2024-11-09 07:05:40,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:05:40,026 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 109 transitions. [2024-11-09 07:05:40,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.6) internal successors, (23), 7 states have internal predecessors, (23), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 07:05:40,027 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 109 transitions. [2024-11-09 07:05:40,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 07:05:40,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:05:40,031 INFO L215 NwaCegarLoop]: trace histogram [8, 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] [2024-11-09 07:05:40,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 07:05:40,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:40,237 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:05:40,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:40,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1927672643, now seen corresponding path program 1 times [2024-11-09 07:05:40,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:05:40,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861350443] [2024-11-09 07:05:40,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:40,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:07:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:32,123 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-09 07:07:32,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:07:32,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861350443] [2024-11-09 07:07:32,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861350443] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:07:32,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269694253] [2024-11-09 07:07:32,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:32,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:07:32,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:07:32,127 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:07:32,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6238f25-5fc5-46c6-9230-edf231f5b311/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process