./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_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_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/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_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/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_fb73cb73-3efc-4b52-8e79-96b276261b86/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 60df7e35dcff08963d901f2f5294003ca0b3fa53fdb8a894278bffc5d6309871 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:56:41,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:56:41,793 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 02:56:41,799 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:56:41,800 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:56:41,829 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:56:41,830 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:56:41,830 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:56:41,830 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:56:41,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:56:41,831 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:56:41,831 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:56:41,831 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:56:41,831 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:56:41,832 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:56:41,832 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:56:41,832 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:56:41,832 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:56:41,832 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:56:41,833 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:56:41,833 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:56:41,833 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:56:41,834 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:56:41,834 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:56:41,834 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:56:41,834 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:56:41,835 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:56:41,835 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:56:41,835 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:56:41,835 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:56:41,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:56:41,835 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:56:41,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:56:41,836 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:56:41,836 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:56:41,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:56:41,836 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:56:41,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:56:41,836 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:56:41,836 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:56:41,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:56:41,837 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:56:41,837 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:56:41,837 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:56:41,837 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_fb73cb73-3efc-4b52-8e79-96b276261b86/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 -> 60df7e35dcff08963d901f2f5294003ca0b3fa53fdb8a894278bffc5d6309871 [2024-11-14 02:56:42,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:56:42,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:56:42,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:56:42,234 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:56:42,235 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:56:42,236 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness_negated.i Unable to find full path for "g++" [2024-11-14 02:56:44,520 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:56:45,472 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:56:45,473 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness_negated.i [2024-11-14 02:56:45,549 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/data/034547ea4/da8160f212034986b2057ee633e45401/FLAGdd867cd7e [2024-11-14 02:56:45,577 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/data/034547ea4/da8160f212034986b2057ee633e45401 [2024-11-14 02:56:45,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:56:45,586 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:56:45,588 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:56:45,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:56:45,600 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:56:45,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:56:45" (1/1) ... [2024-11-14 02:56:45,602 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25254f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:56:45, skipping insertion in model container [2024-11-14 02:56:45,603 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:56:45" (1/1) ... [2024-11-14 02:56:45,771 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:56:46,215 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_fb73cb73-3efc-4b52-8e79-96b276261b86/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness_negated.i[4494,4507] [2024-11-14 02:56:46,226 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_fb73cb73-3efc-4b52-8e79-96b276261b86/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness_negated.i[4554,4567] [2024-11-14 02:56:47,649 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:47,650 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:47,651 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:47,652 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:47,653 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:47,674 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:47,675 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:47,678 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:47,678 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:47,681 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:47,683 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:47,684 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:47,684 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,163 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,164 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,190 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,191 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,198 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,202 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,226 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,227 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,228 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,228 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,228 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,229 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,229 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,290 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_fb73cb73-3efc-4b52-8e79-96b276261b86/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness_negated.i[228285,228298] [2024-11-14 02:56:49,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:56:49,346 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:56:49,366 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_fb73cb73-3efc-4b52-8e79-96b276261b86/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness_negated.i[4494,4507] [2024-11-14 02:56:49,370 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_fb73cb73-3efc-4b52-8e79-96b276261b86/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness_negated.i[4554,4567] [2024-11-14 02:56:49,446 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,447 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,448 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,448 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,450 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,463 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,467 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,468 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,469 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,472 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,474 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,475 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,476 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2024-11-14 02:56:49,753 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,754 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,822 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,823 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,826 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,827 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,842 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,843 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,844 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,844 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,845 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,846 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,846 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 02:56:49,879 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_fb73cb73-3efc-4b52-8e79-96b276261b86/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness_negated.i[228285,228298] [2024-11-14 02:56:49,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:56:50,250 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:56:50,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:56:50 WrapperNode [2024-11-14 02:56:50,251 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:56:50,252 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:56:50,253 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:56:50,253 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:56:50,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:56:50" (1/1) ... [2024-11-14 02:56:50,415 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:56:50" (1/1) ... [2024-11-14 02:56:50,514 INFO L138 Inliner]: procedures = 763, calls = 2455, calls flagged for inlining = 67, calls inlined = 11, statements flattened = 749 [2024-11-14 02:56:50,516 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:56:50,517 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:56:50,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:56:50,517 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:56:50,533 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:56:50" (1/1) ... [2024-11-14 02:56:50,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:56:50" (1/1) ... [2024-11-14 02:56:50,544 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:56:50" (1/1) ... [2024-11-14 02:56:50,545 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:56:50" (1/1) ... [2024-11-14 02:56:50,643 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:56:50" (1/1) ... [2024-11-14 02:56:50,661 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:56:50" (1/1) ... [2024-11-14 02:56:50,671 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:56:50" (1/1) ... [2024-11-14 02:56:50,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:56:50" (1/1) ... [2024-11-14 02:56:50,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:56:50,689 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:56:50,689 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:56:50,689 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:56:50,690 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:56:50" (1/1) ... [2024-11-14 02:56:50,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:56:50,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:56:50,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:56:50,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:56:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-14 02:56:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 02:56:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-14 02:56:50,795 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-14 02:56:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 02:56:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 02:56:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-14 02:56:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-14 02:56:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 02:56:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 02:56:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2024-11-14 02:56:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2024-11-14 02:56:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 02:56:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:56:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2024-11-14 02:56:50,798 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2024-11-14 02:56:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 02:56:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-14 02:56:50,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-14 02:56:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:56:50,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:56:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-14 02:56:50,799 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-14 02:56:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-14 02:56:50,801 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-14 02:56:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 02:56:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 02:56:50,801 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 02:56:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 02:56:50,802 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 02:56:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 02:56:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2024-11-14 02:56:50,802 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2024-11-14 02:56:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-14 02:56:50,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-14 02:56:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 02:56:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2024-11-14 02:56:50,802 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2024-11-14 02:56:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 02:56:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-14 02:56:50,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-14 02:56:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-14 02:56:50,803 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-14 02:56:50,803 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-14 02:56:50,803 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-14 02:56:50,803 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_entry [2024-11-14 02:56:50,803 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_entry [2024-11-14 02:56:50,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 02:56:50,803 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_delete [2024-11-14 02:56:50,803 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_delete [2024-11-14 02:56:50,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:56:50,803 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2024-11-14 02:56:50,803 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2024-11-14 02:56:51,322 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:56:51,325 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:56:51,665 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !true; [2024-11-14 02:56:51,665 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !true; [2024-11-14 02:56:56,278 INFO L? ?]: Removed 198 outVars from TransFormulas that were not future-live. [2024-11-14 02:56:56,279 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:56:56,937 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:56:56,937 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-14 02:56:56,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:56:56 BoogieIcfgContainer [2024-11-14 02:56:56,938 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:56:56,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:56:56,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:56:56,952 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:56:56,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:56:45" (1/3) ... [2024-11-14 02:56:56,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a512259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:56:56, skipping insertion in model container [2024-11-14 02:56:56,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:56:50" (2/3) ... [2024-11-14 02:56:56,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a512259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:56:56, skipping insertion in model container [2024-11-14 02:56:56,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:56:56" (3/3) ... [2024-11-14 02:56:56,955 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_delete_harness_negated.i [2024-11-14 02:56:56,975 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:56:56,978 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_delete_harness_negated.i that has 20 procedures, 167 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2024-11-14 02:56:57,048 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:56:57,062 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;@7c681420, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:56:57,062 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 02:56:57,068 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 94 states have (on average 1.202127659574468) internal successors, (113), 93 states have internal predecessors, (113), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 02:56:57,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-14 02:56:57,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:56:57,089 INFO L215 NwaCegarLoop]: trace histogram [19, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:56:57,090 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:56:57,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:56:57,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1450209418, now seen corresponding path program 1 times [2024-11-14 02:56:57,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:56:57,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648772624] [2024-11-14 02:56:57,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:56:57,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:57:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:57:09,173 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-11-14 02:57:09,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:57:09,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648772624] [2024-11-14 02:57:09,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648772624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:57:09,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:57:09,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:57:09,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951778096] [2024-11-14 02:57:09,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:57:09,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:57:09,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:57:09,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:57:09,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:57:09,229 INFO L87 Difference]: Start difference. First operand has 167 states, 94 states have (on average 1.202127659574468) internal successors, (113), 93 states have internal predecessors, (113), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-14 02:57:11,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:57:13,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:57:15,912 WARN L539 Checker$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 02:57:18,199 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 02:57:19,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:57:19,917 INFO L93 Difference]: Finished difference Result 304 states and 413 transitions. [2024-11-14 02:57:19,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:57:19,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 146 [2024-11-14 02:57:19,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:57:19,932 INFO L225 Difference]: With dead ends: 304 [2024-11-14 02:57:19,933 INFO L226 Difference]: Without dead ends: 169 [2024-11-14 02:57:19,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:57:19,944 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 0 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-14 02:57:19,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 736 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 4 Unknown, 0 Unchecked, 10.6s Time] [2024-11-14 02:57:19,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-14 02:57:20,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2024-11-14 02:57:20,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 94 states have (on average 1.1595744680851063) internal successors, (109), 95 states have internal predecessors, (109), 54 states have call successors, (54), 19 states have call predecessors, (54), 20 states have return successors, (54), 54 states have call predecessors, (54), 53 states have call successors, (54) [2024-11-14 02:57:20,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 217 transitions. [2024-11-14 02:57:20,014 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 217 transitions. Word has length 146 [2024-11-14 02:57:20,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:57:20,018 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 217 transitions. [2024-11-14 02:57:20,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-14 02:57:20,019 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 217 transitions. [2024-11-14 02:57:20,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-14 02:57:20,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:57:20,027 INFO L215 NwaCegarLoop]: trace histogram [19, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:57:20,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 02:57:20,032 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:57:20,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:57:20,033 INFO L85 PathProgramCache]: Analyzing trace with hash -774630299, now seen corresponding path program 1 times [2024-11-14 02:57:20,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:57:20,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047526951] [2024-11-14 02:57:20,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:57:20,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:57:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:57:33,437 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-11-14 02:57:33,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:57:33,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047526951] [2024-11-14 02:57:33,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047526951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:57:33,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:57:33,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 02:57:33,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250324490] [2024-11-14 02:57:33,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:57:33,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 02:57:33,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:57:33,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 02:57:33,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-14 02:57:33,442 INFO L87 Difference]: Start difference. First operand 169 states and 217 transitions. Second operand has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2024-11-14 02:57:35,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:57:37,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:57:40,088 WARN L539 Checker$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 02:57:42,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:57:44,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:57:46,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:57:49,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:57:49,866 INFO L93 Difference]: Finished difference Result 290 states and 376 transitions. [2024-11-14 02:57:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 02:57:49,867 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 150 [2024-11-14 02:57:49,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:57:49,871 INFO L225 Difference]: With dead ends: 290 [2024-11-14 02:57:49,871 INFO L226 Difference]: Without dead ends: 171 [2024-11-14 02:57:49,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-14 02:57:49,874 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 5 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:57:49,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 978 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 6 Unknown, 0 Unchecked, 16.4s Time] [2024-11-14 02:57:49,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-14 02:57:49,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2024-11-14 02:57:49,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 95 states have (on average 1.1578947368421053) internal successors, (110), 97 states have internal predecessors, (110), 54 states have call successors, (54), 19 states have call predecessors, (54), 21 states have return successors, (55), 54 states have call predecessors, (55), 53 states have call successors, (55) [2024-11-14 02:57:49,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 219 transitions. [2024-11-14 02:57:49,898 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 219 transitions. Word has length 150 [2024-11-14 02:57:49,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:57:49,899 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 219 transitions. [2024-11-14 02:57:49,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2024-11-14 02:57:49,901 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 219 transitions. [2024-11-14 02:57:49,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 02:57:49,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:57:49,908 INFO L215 NwaCegarLoop]: trace histogram [19, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:57:49,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 02:57:49,908 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:57:49,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:57:49,909 INFO L85 PathProgramCache]: Analyzing trace with hash 577445974, now seen corresponding path program 1 times [2024-11-14 02:57:49,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:57:49,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433963659] [2024-11-14 02:57:49,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:57:49,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:57:56,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:58:00,448 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-11-14 02:58:00,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:58:00,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433963659] [2024-11-14 02:58:00,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433963659] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:58:00,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545702214] [2024-11-14 02:58:00,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:58:00,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:58:00,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:58:00,453 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:58:00,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 02:58:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:58:08,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 4440 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 02:58:08,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:58:09,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-14 02:58:11,739 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-14 02:58:11,740 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:58:11,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545702214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:58:11,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:58:11,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2024-11-14 02:58:11,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715764018] [2024-11-14 02:58:11,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:58:11,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 02:58:11,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:58:11,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 02:58:11,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-11-14 02:58:11,743 INFO L87 Difference]: Start difference. First operand 171 states and 219 transitions. Second operand has 12 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 5 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) [2024-11-14 02:58:13,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:58:16,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:58:18,415 WARN L539 Checker$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 02:58:20,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:58:23,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:58:25,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:58:27,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:58:29,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:58:32,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:58:35,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:58:38,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:58:41,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:58:43,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:58:46,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:58:51,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:58:53,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:58:56,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:58:58,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:59:01,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:59:03,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:59:05,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:59:05,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:59:05,732 INFO L93 Difference]: Finished difference Result 339 states and 427 transitions. [2024-11-14 02:59:05,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 02:59:05,733 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 5 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) Word has length 156 [2024-11-14 02:59:05,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:59:05,737 INFO L225 Difference]: With dead ends: 339 [2024-11-14 02:59:05,737 INFO L226 Difference]: Without dead ends: 211 [2024-11-14 02:59:05,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2024-11-14 02:59:05,740 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 63 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 16 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.8s IncrementalHoareTripleChecker+Time [2024-11-14 02:59:05,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 1340 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 765 Invalid, 21 Unknown, 0 Unchecked, 52.8s Time] [2024-11-14 02:59:05,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-14 02:59:05,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 208. [2024-11-14 02:59:05,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 116 states have (on average 1.1379310344827587) internal successors, (132), 118 states have internal predecessors, (132), 62 states have call successors, (62), 27 states have call predecessors, (62), 29 states have return successors, (64), 62 states have call predecessors, (64), 61 states have call successors, (64) [2024-11-14 02:59:05,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2024-11-14 02:59:05,790 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 156 [2024-11-14 02:59:05,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:59:05,791 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2024-11-14 02:59:05,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 5 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) [2024-11-14 02:59:05,791 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2024-11-14 02:59:05,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-14 02:59:05,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:59:05,795 INFO L215 NwaCegarLoop]: trace histogram [19, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:59:05,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 02:59:05,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:59:05,999 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:59:06,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:59:06,000 INFO L85 PathProgramCache]: Analyzing trace with hash 385567455, now seen corresponding path program 1 times [2024-11-14 02:59:06,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:59:06,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485079699] [2024-11-14 02:59:06,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:06,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:59:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:16,294 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-11-14 02:59:16,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:59:16,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485079699] [2024-11-14 02:59:16,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485079699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:59:16,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:59:16,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:59:16,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620980518] [2024-11-14 02:59:16,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:59:16,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:59:16,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:59:16,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:59:16,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:59:16,298 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand has 5 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-14 02:59:18,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:59:20,701 WARN L539 Checker$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 02:59:23,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:59:25,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:59:28,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:59:28,263 INFO L93 Difference]: Finished difference Result 273 states and 343 transitions. [2024-11-14 02:59:28,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:59:28,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 160 [2024-11-14 02:59:28,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:59:28,267 INFO L225 Difference]: With dead ends: 273 [2024-11-14 02:59:28,271 INFO L226 Difference]: Without dead ends: 210 [2024-11-14 02:59:28,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:59:28,273 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 0 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2024-11-14 02:59:28,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 651 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 4 Unknown, 0 Unchecked, 11.9s Time] [2024-11-14 02:59:28,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-14 02:59:28,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2024-11-14 02:59:28,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 117 states have (on average 1.1367521367521367) internal successors, (133), 120 states have internal predecessors, (133), 62 states have call successors, (62), 27 states have call predecessors, (62), 30 states have return successors, (68), 62 states have call predecessors, (68), 61 states have call successors, (68) [2024-11-14 02:59:28,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 263 transitions. [2024-11-14 02:59:28,321 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 263 transitions. Word has length 160 [2024-11-14 02:59:28,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:59:28,322 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 263 transitions. [2024-11-14 02:59:28,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-14 02:59:28,322 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 263 transitions. [2024-11-14 02:59:28,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-14 02:59:28,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:59:28,325 INFO L215 NwaCegarLoop]: trace histogram [19, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:59:28,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 02:59:28,326 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:59:28,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:59:28,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1958145048, now seen corresponding path program 2 times [2024-11-14 02:59:28,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:59:28,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012260422] [2024-11-14 02:59:28,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:28,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:59:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:38,792 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-14 02:59:38,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:59:38,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012260422] [2024-11-14 02:59:38,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012260422] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:59:38,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662142372] [2024-11-14 02:59:38,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 02:59:38,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:59:38,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:59:38,796 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:59:38,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 02:59:47,564 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-14 02:59:47,564 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 02:59:47,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 3758 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 02:59:47,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:59:48,145 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-14 02:59:48,145 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:59:48,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662142372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:59:48,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:59:48,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-14 02:59:48,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828990922] [2024-11-14 02:59:48,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:59:48,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:59:48,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:59:48,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:59:48,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-14 02:59:48,149 INFO L87 Difference]: Start difference. First operand 210 states and 263 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-14 02:59:50,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:59:52,485 WARN L539 Checker$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 02:59:54,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:59:57,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:59:58,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:59:58,649 INFO L93 Difference]: Finished difference Result 218 states and 271 transitions. [2024-11-14 02:59:58,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:59:58,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 164 [2024-11-14 02:59:58,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:59:58,653 INFO L225 Difference]: With dead ends: 218 [2024-11-14 02:59:58,653 INFO L226 Difference]: Without dead ends: 216 [2024-11-14 02:59:58,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-14 02:59:58,654 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 3 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:59:58,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 720 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 4 Unknown, 0 Unchecked, 10.3s Time] [2024-11-14 02:59:58,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-14 02:59:58,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 215. [2024-11-14 02:59:58,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 120 states have (on average 1.1333333333333333) internal successors, (136), 124 states have internal predecessors, (136), 63 states have call successors, (63), 28 states have call predecessors, (63), 31 states have return successors, (69), 62 states have call predecessors, (69), 62 states have call successors, (69) [2024-11-14 02:59:58,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 268 transitions. [2024-11-14 02:59:58,677 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 268 transitions. Word has length 164 [2024-11-14 02:59:58,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:59:58,678 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 268 transitions. [2024-11-14 02:59:58,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-14 02:59:58,678 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 268 transitions. [2024-11-14 02:59:58,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-14 02:59:58,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:59:58,681 INFO L215 NwaCegarLoop]: trace histogram [19, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:59:58,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 02:59:58,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:59:58,882 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:59:58,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:59:58,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1751405402, now seen corresponding path program 1 times [2024-11-14 02:59:58,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:59:58,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430895278] [2024-11-14 02:59:58,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:58,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:08,527 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2024-11-14 03:00:08,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:08,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430895278] [2024-11-14 03:00:08,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430895278] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:00:08,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403559036] [2024-11-14 03:00:08,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:08,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:00:08,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:00:08,530 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:00:08,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:00:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:16,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 4518 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-14 03:00:16,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:00:19,219 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 28 proven. 7 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-11-14 03:00:19,220 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:00:23,016 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2024-11-14 03:00:23,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403559036] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 03:00:23,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:00:23,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9, 13] total 24 [2024-11-14 03:00:23,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249057873] [2024-11-14 03:00:23,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:23,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:00:23,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:23,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:00:23,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2024-11-14 03:00:23,019 INFO L87 Difference]: Start difference. First operand 215 states and 268 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-14 03:00:25,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:00:27,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:00:29,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:00:31,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:00:34,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:00:36,506 WARN L539 Checker$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 03:00:39,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:39,248 INFO L93 Difference]: Finished difference Result 224 states and 277 transitions. [2024-11-14 03:00:39,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:00:39,249 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 1 states have call successors, (36) Word has length 170 [2024-11-14 03:00:39,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:39,253 INFO L225 Difference]: With dead ends: 224 [2024-11-14 03:00:39,253 INFO L226 Difference]: Without dead ends: 222 [2024-11-14 03:00:39,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2024-11-14 03:00:39,256 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 3 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:39,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1087 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 6 Unknown, 0 Unchecked, 15.9s Time] [2024-11-14 03:00:39,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-14 03:00:39,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 216. [2024-11-14 03:00:39,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 121 states have (on average 1.1322314049586777) internal successors, (137), 124 states have internal predecessors, (137), 63 states have call successors, (63), 28 states have call predecessors, (63), 31 states have return successors, (69), 63 states have call predecessors, (69), 62 states have call successors, (69) [2024-11-14 03:00:39,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 269 transitions. [2024-11-14 03:00:39,284 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 269 transitions. Word has length 170 [2024-11-14 03:00:39,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:39,285 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 269 transitions. [2024-11-14 03:00:39,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-14 03:00:39,286 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 269 transitions. [2024-11-14 03:00:39,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-14 03:00:39,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:39,289 INFO L215 NwaCegarLoop]: trace histogram [19, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:00:39,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 03:00:39,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:00:39,490 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:00:39,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:39,490 INFO L85 PathProgramCache]: Analyzing trace with hash 51640753, now seen corresponding path program 2 times [2024-11-14 03:00:39,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:39,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700036951] [2024-11-14 03:00:39,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:39,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:48,593 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2024-11-14 03:00:48,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:48,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700036951] [2024-11-14 03:00:48,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700036951] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:00:48,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064853787] [2024-11-14 03:00:48,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:00:48,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:00:48,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:00:48,595 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:00:48,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb73cb73-3efc-4b52-8e79-96b276261b86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process