./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_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_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/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_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/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_33543398-076d-4937-b2ad-ec2f01256e6a/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 83589103d63582ab3e264b6d8e730d62c6eb0b101bb611ea588c172c43990d87 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:00:57,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:00:57,159 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 04:00:57,163 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:00:57,164 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:00:57,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:00:57,205 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:00:57,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:00:57,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:00:57,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:00:57,205 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:00:57,206 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:00:57,206 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:00:57,206 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:00:57,206 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:00:57,206 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:00:57,207 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:00:57,207 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:00:57,208 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:00:57,208 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:00:57,208 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:00:57,208 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:00:57,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:00:57,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:00:57,209 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:00:57,209 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:00:57,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:00:57,209 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:00:57,209 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:00:57,209 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:00:57,209 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:00:57,210 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:00:57,210 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:00:57,210 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:00:57,210 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:00:57,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:00:57,210 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:00:57,210 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:00:57,210 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:00:57,210 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:00:57,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:00:57,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:00:57,211 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:00:57,211 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:00:57,211 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_33543398-076d-4937-b2ad-ec2f01256e6a/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 -> 83589103d63582ab3e264b6d8e730d62c6eb0b101bb611ea588c172c43990d87 [2024-11-14 04:00:57,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:00:57,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:00:57,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:00:57,521 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:00:57,522 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:00:57,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness_negated.i Unable to find full path for "g++" [2024-11-14 04:00:59,421 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:01:00,100 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:01:00,103 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness_negated.i [2024-11-14 04:01:00,154 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/data/c8d2821d2/becfce95a771411aa677f9fb27d1115c/FLAGcdee1d71b [2024-11-14 04:01:00,176 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/data/c8d2821d2/becfce95a771411aa677f9fb27d1115c [2024-11-14 04:01:00,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:01:00,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:01:00,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:01:00,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:01:00,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:01:00,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:01:00" (1/1) ... [2024-11-14 04:01:00,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46677188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:01:00, skipping insertion in model container [2024-11-14 04:01:00,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:01:00" (1/1) ... [2024-11-14 04:01:00,315 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:01:00,601 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_33543398-076d-4937-b2ad-ec2f01256e6a/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness_negated.i[4495,4508] [2024-11-14 04:01:00,609 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_33543398-076d-4937-b2ad-ec2f01256e6a/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness_negated.i[4555,4568] [2024-11-14 04:01:01,792 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:01,793 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:01,794 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:01,795 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:01,800 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:01,815 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:01,816 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:01,818 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:01,819 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:01,821 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:01,822 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:01,823 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:01,823 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:02,980 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:02,982 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,019 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,020 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,030 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,030 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,050 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,051 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,051 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,052 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,052 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,052 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,053 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,099 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_33543398-076d-4937-b2ad-ec2f01256e6a/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness_negated.i[229394,229407] [2024-11-14 04:01:03,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:01:03,145 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:01:03,162 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_33543398-076d-4937-b2ad-ec2f01256e6a/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness_negated.i[4495,4508] [2024-11-14 04:01:03,166 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_33543398-076d-4937-b2ad-ec2f01256e6a/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness_negated.i[4555,4568] [2024-11-14 04:01:03,228 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,229 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,229 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,230 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,231 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,240 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,241 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,242 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,243 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,244 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,244 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,245 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,245 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7544-7555] [2024-11-14 04:01:03,530 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,530 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,540 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,541 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,544 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,545 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,557 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,559 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,559 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,559 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,560 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,560 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,560 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:01:03,583 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_33543398-076d-4937-b2ad-ec2f01256e6a/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness_negated.i[229394,229407] [2024-11-14 04:01:03,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:01:03,868 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:01:03,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:01:03 WrapperNode [2024-11-14 04:01:03,869 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:01:03,870 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:01:03,870 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:01:03,870 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:01:03,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:01:03" (1/1) ... [2024-11-14 04:01:04,004 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:01:03" (1/1) ... [2024-11-14 04:01:04,142 INFO L138 Inliner]: procedures = 764, calls = 2484, calls flagged for inlining = 68, calls inlined = 21, statements flattened = 1370 [2024-11-14 04:01:04,147 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:01:04,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:01:04,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:01:04,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:01:04,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:01:03" (1/1) ... [2024-11-14 04:01:04,167 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:01:03" (1/1) ... [2024-11-14 04:01:04,179 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:01:03" (1/1) ... [2024-11-14 04:01:04,179 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:01:03" (1/1) ... [2024-11-14 04:01:04,256 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:01:03" (1/1) ... [2024-11-14 04:01:04,299 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:01:03" (1/1) ... [2024-11-14 04:01:04,322 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:01:03" (1/1) ... [2024-11-14 04:01:04,329 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:01:03" (1/1) ... [2024-11-14 04:01:04,343 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:01:04,344 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:01:04,344 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:01:04,344 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:01:04,345 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:01:03" (1/1) ... [2024-11-14 04:01:04,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:01:04,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:01:04,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:01:04,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:01:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure s_update_template_size [2024-11-14 04:01:04,406 INFO L138 BoogieDeclarations]: Found implementation of procedure s_update_template_size [2024-11-14 04:01:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-14 04:01:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2024-11-14 04:01:04,407 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2024-11-14 04:01:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2024-11-14 04:01:04,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2024-11-14 04:01:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 04:01:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-14 04:01:04,407 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-14 04:01:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-14 04:01:04,407 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-14 04:01:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-14 04:01:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 04:01:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_calloc [2024-11-14 04:01:04,407 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_calloc [2024-11-14 04:01:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 04:01:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-14 04:01:04,408 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-14 04:01:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 04:01:04,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 04:01:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-14 04:01:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_create [2024-11-14 04:01:04,408 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_create [2024-11-14 04:01:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2024-11-14 04:01:04,408 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2024-11-14 04:01:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 04:01:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:01:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2024-11-14 04:01:04,408 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2024-11-14 04:01:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 04:01:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2024-11-14 04:01:04,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2024-11-14 04:01:04,409 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2024-11-14 04:01:04,409 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2024-11-14 04:01:04,409 INFO L130 BoogieDeclarations]: Found specification of procedure s_emplace_item [2024-11-14 04:01:04,409 INFO L138 BoogieDeclarations]: Found implementation of procedure s_emplace_item [2024-11-14 04:01:04,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:01:04,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:01:04,409 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-14 04:01:04,409 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-14 04:01:04,409 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-14 04:01:04,409 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-14 04:01:04,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 04:01:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2024-11-14 04:01:04,411 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2024-11-14 04:01:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-14 04:01:04,411 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-14 04:01:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:01:04,411 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:01:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 04:01:04,412 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-14 04:01:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-14 04:01:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 04:01:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2024-11-14 04:01:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2024-11-14 04:01:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 04:01:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-14 04:01:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-14 04:01:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-14 04:01:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-14 04:01:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-14 04:01:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-14 04:01:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-14 04:01:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-14 04:01:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 04:01:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2024-11-14 04:01:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2024-11-14 04:01:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure s_alloc_state [2024-11-14 04:01:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure s_alloc_state [2024-11-14 04:01:04,415 INFO L130 BoogieDeclarations]: Found specification of procedure uninterpreted_equals [2024-11-14 04:01:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure uninterpreted_equals [2024-11-14 04:01:04,415 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-14 04:01:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-14 04:01:04,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:01:04,415 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2024-11-14 04:01:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2024-11-14 04:01:04,956 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:01:04,958 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:01:05,525 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2024-11-14 04:01:05,585 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2024-11-14 04:01:06,312 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume !true; [2024-11-14 04:01:06,312 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !true; [2024-11-14 04:01:10,122 INFO L? ?]: Removed 393 outVars from TransFormulas that were not future-live. [2024-11-14 04:01:10,122 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:01:10,979 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:01:10,979 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-14 04:01:10,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:01:10 BoogieIcfgContainer [2024-11-14 04:01:10,980 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:01:10,984 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:01:10,984 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:01:10,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:01:10,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:01:00" (1/3) ... [2024-11-14 04:01:10,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36120abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:01:10, skipping insertion in model container [2024-11-14 04:01:10,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:01:03" (2/3) ... [2024-11-14 04:01:10,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36120abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:01:10, skipping insertion in model container [2024-11-14 04:01:10,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:01:10" (3/3) ... [2024-11-14 04:01:10,996 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_create_harness_negated.i [2024-11-14 04:01:11,013 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:01:11,014 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_create_harness_negated.i that has 31 procedures, 281 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2024-11-14 04:01:11,090 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:01:11,104 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;@2bd4ea0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:01:11,105 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:01:11,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 281 states, 167 states have (on average 1.251497005988024) internal successors, (209), 164 states have internal predecessors, (209), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-14 04:01:11,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 04:01:11,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:01:11,122 INFO L215 NwaCegarLoop]: trace histogram [9, 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] [2024-11-14 04:01:11,122 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:01:11,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:01:11,128 INFO L85 PathProgramCache]: Analyzing trace with hash -893418015, now seen corresponding path program 1 times [2024-11-14 04:01:11,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:01:11,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016589394] [2024-11-14 04:01:11,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:11,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:01:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:21,075 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-14 04:01:21,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:01:21,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016589394] [2024-11-14 04:01:21,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016589394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:01:21,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:01:21,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:01:21,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48936397] [2024-11-14 04:01:21,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:01:21,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:01:21,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:01:21,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:01:21,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:01:21,103 INFO L87 Difference]: Start difference. First operand has 281 states, 167 states have (on average 1.251497005988024) internal successors, (209), 164 states have internal predecessors, (209), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-14 04:01:23,213 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 04:01:25,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:01:27,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:01:29,954 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 04:01:33,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:01:33,218 INFO L93 Difference]: Finished difference Result 558 states and 783 transitions. [2024-11-14 04:01:33,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:01:33,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 89 [2024-11-14 04:01:33,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:01:33,232 INFO L225 Difference]: With dead ends: 558 [2024-11-14 04:01:33,233 INFO L226 Difference]: Without dead ends: 281 [2024-11-14 04:01:33,238 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 04:01:33,240 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 0 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:01:33,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1296 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 191 Invalid, 4 Unknown, 0 Unchecked, 12.0s Time] [2024-11-14 04:01:33,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-14 04:01:33,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2024-11-14 04:01:33,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 163 states have (on average 1.2269938650306749) internal successors, (200), 165 states have internal predecessors, (200), 86 states have call successors, (86), 30 states have call predecessors, (86), 31 states have return successors, (88), 85 states have call predecessors, (88), 84 states have call successors, (88) [2024-11-14 04:01:33,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 374 transitions. [2024-11-14 04:01:33,303 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 374 transitions. Word has length 89 [2024-11-14 04:01:33,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:01:33,303 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 374 transitions. [2024-11-14 04:01:33,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-14 04:01:33,304 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 374 transitions. [2024-11-14 04:01:33,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-14 04:01:33,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:01:33,307 INFO L215 NwaCegarLoop]: trace histogram [9, 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] [2024-11-14 04:01:33,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:01:33,308 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:01:33,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:01:33,308 INFO L85 PathProgramCache]: Analyzing trace with hash -2078166478, now seen corresponding path program 1 times [2024-11-14 04:01:33,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:01:33,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586121749] [2024-11-14 04:01:33,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:33,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:01:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:41,822 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 04:01:41,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:01:41,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586121749] [2024-11-14 04:01:41,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586121749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:01:41,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:01:41,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:01:41,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795479021] [2024-11-14 04:01:41,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:01:41,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:01:41,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:01:41,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:01:41,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:01:41,829 INFO L87 Difference]: Start difference. First operand 281 states and 374 transitions. Second operand has 5 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-14 04:01:43,917 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 04:01:46,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:01:48,413 WARN L539 Checker$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 04:01:50,674 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 04:01:54,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:01:54,653 INFO L93 Difference]: Finished difference Result 527 states and 705 transitions. [2024-11-14 04:01:54,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:01:54,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 93 [2024-11-14 04:01:54,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:01:54,659 INFO L225 Difference]: With dead ends: 527 [2024-11-14 04:01:54,659 INFO L226 Difference]: Without dead ends: 283 [2024-11-14 04:01:54,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:01:54,663 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 0 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:01:54,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1186 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 4 Unknown, 0 Unchecked, 12.8s Time] [2024-11-14 04:01:54,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-14 04:01:54,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2024-11-14 04:01:54,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 164 states have (on average 1.225609756097561) internal successors, (201), 167 states have internal predecessors, (201), 86 states have call successors, (86), 30 states have call predecessors, (86), 32 states have return successors, (94), 85 states have call predecessors, (94), 84 states have call successors, (94) [2024-11-14 04:01:54,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 381 transitions. [2024-11-14 04:01:54,714 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 381 transitions. Word has length 93 [2024-11-14 04:01:54,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:01:54,717 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 381 transitions. [2024-11-14 04:01:54,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-14 04:01:54,717 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 381 transitions. [2024-11-14 04:01:54,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-14 04:01:54,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:01:54,722 INFO L215 NwaCegarLoop]: trace histogram [9, 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] [2024-11-14 04:01:54,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:01:54,722 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:01:54,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:01:54,722 INFO L85 PathProgramCache]: Analyzing trace with hash 307711286, now seen corresponding path program 1 times [2024-11-14 04:01:54,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:01:54,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691623427] [2024-11-14 04:01:54,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:54,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:01:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:02:04,653 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-14 04:02:04,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:02:04,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691623427] [2024-11-14 04:02:04,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691623427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:02:04,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:02:04,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 04:02:04,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941215410] [2024-11-14 04:02:04,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:02:04,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:02:04,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:02:04,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:02:04,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:02:04,656 INFO L87 Difference]: Start difference. First operand 283 states and 381 transitions. Second operand has 8 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-14 04:02:06,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:02:09,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:02:11,281 WARN L539 Checker$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 04:02:13,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:02:15,766 WARN L539 Checker$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 04:02:17,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:02:22,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:02:22,960 INFO L93 Difference]: Finished difference Result 550 states and 739 transitions. [2024-11-14 04:02:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:02:22,961 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 97 [2024-11-14 04:02:22,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:02:22,966 INFO L225 Difference]: With dead ends: 550 [2024-11-14 04:02:22,966 INFO L226 Difference]: Without dead ends: 285 [2024-11-14 04:02:22,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:02:22,968 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 0 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:02:22,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1807 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 370 Invalid, 6 Unknown, 0 Unchecked, 18.2s Time] [2024-11-14 04:02:22,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-14 04:02:22,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2024-11-14 04:02:23,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 165 states have (on average 1.2242424242424241) internal successors, (202), 169 states have internal predecessors, (202), 86 states have call successors, (86), 30 states have call predecessors, (86), 33 states have return successors, (95), 85 states have call predecessors, (95), 84 states have call successors, (95) [2024-11-14 04:02:23,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 383 transitions. [2024-11-14 04:02:23,008 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 383 transitions. Word has length 97 [2024-11-14 04:02:23,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:02:23,008 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 383 transitions. [2024-11-14 04:02:23,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-14 04:02:23,008 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 383 transitions. [2024-11-14 04:02:23,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-14 04:02:23,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:02:23,010 INFO L215 NwaCegarLoop]: trace histogram [9, 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] [2024-11-14 04:02:23,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:02:23,010 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:02:23,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:02:23,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1573500364, now seen corresponding path program 1 times [2024-11-14 04:02:23,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:02:23,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111466196] [2024-11-14 04:02:23,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:02:23,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:02:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:02:31,372 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-14 04:02:31,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:02:31,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111466196] [2024-11-14 04:02:31,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111466196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:02:31,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190992188] [2024-11-14 04:02:31,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:02:31,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:02:31,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:02:31,375 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:02:31,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:02:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:02:37,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 4398 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-14 04:02:37,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:02:39,335 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-14 04:02:39,335 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:02:39,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190992188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:02:39,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:02:39,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-14 04:02:39,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183840408] [2024-11-14 04:02:39,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:02:39,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:02:39,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:02:39,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:02:39,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2024-11-14 04:02:39,339 INFO L87 Difference]: Start difference. First operand 285 states and 383 transitions. Second operand has 8 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-14 04:02:41,435 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 04:02:43,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:02:45,961 WARN L539 Checker$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 04:02:48,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:02:50,486 WARN L539 Checker$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 04:02:52,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:02:55,020 WARN L539 Checker$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 04:03:01,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:03:01,221 INFO L93 Difference]: Finished difference Result 555 states and 744 transitions. [2024-11-14 04:03:01,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:03:01,222 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 103 [2024-11-14 04:03:01,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:03:01,225 INFO L225 Difference]: With dead ends: 555 [2024-11-14 04:03:01,226 INFO L226 Difference]: Without dead ends: 288 [2024-11-14 04:03:01,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2024-11-14 04:03:01,228 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 0 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2082 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:03:01,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2082 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 477 Invalid, 7 Unknown, 0 Unchecked, 21.8s Time] [2024-11-14 04:03:01,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-14 04:03:01,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 286. [2024-11-14 04:03:01,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 166 states have (on average 1.2228915662650603) internal successors, (203), 169 states have internal predecessors, (203), 86 states have call successors, (86), 30 states have call predecessors, (86), 33 states have return successors, (95), 86 states have call predecessors, (95), 84 states have call successors, (95) [2024-11-14 04:03:01,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 384 transitions. [2024-11-14 04:03:01,258 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 384 transitions. Word has length 103 [2024-11-14 04:03:01,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:03:01,258 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 384 transitions. [2024-11-14 04:03:01,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-14 04:03:01,259 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 384 transitions. [2024-11-14 04:03:01,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-14 04:03:01,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:03:01,261 INFO L215 NwaCegarLoop]: trace histogram [9, 3, 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] [2024-11-14 04:03:01,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:03:01,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:03:01,462 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:03:01,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:03:01,462 INFO L85 PathProgramCache]: Analyzing trace with hash 590081872, now seen corresponding path program 1 times [2024-11-14 04:03:01,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:03:01,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189784098] [2024-11-14 04:03:01,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:03:01,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:03:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:03:10,810 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-14 04:03:10,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:03:10,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189784098] [2024-11-14 04:03:10,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189784098] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:03:10,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280140211] [2024-11-14 04:03:10,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:03:10,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:03:10,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:03:10,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:03:10,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 04:03:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:03:17,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 4427 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:03:17,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:03:17,647 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:03:17,647 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:03:17,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280140211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:03:17,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:03:17,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-11-14 04:03:17,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595014438] [2024-11-14 04:03:17,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:03:17,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:03:17,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:03:17,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:03:17,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:03:17,650 INFO L87 Difference]: Start difference. First operand 286 states and 384 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-14 04:03:19,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:03:22,017 WARN L539 Checker$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 04:03:24,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:03:26,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:03:31,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:03:31,184 INFO L93 Difference]: Finished difference Result 566 states and 758 transitions. [2024-11-14 04:03:31,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:03:31,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 107 [2024-11-14 04:03:31,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:03:31,189 INFO L225 Difference]: With dead ends: 566 [2024-11-14 04:03:31,191 INFO L226 Difference]: Without dead ends: 288 [2024-11-14 04:03:31,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:03:31,193 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 0 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:03:31,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1182 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 4 Unknown, 0 Unchecked, 13.5s Time] [2024-11-14 04:03:31,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-14 04:03:31,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2024-11-14 04:03:31,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 167 states have (on average 1.221556886227545) internal successors, (204), 171 states have internal predecessors, (204), 86 states have call successors, (86), 30 states have call predecessors, (86), 34 states have return successors, (96), 86 states have call predecessors, (96), 84 states have call successors, (96) [2024-11-14 04:03:31,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 386 transitions. [2024-11-14 04:03:31,226 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 386 transitions. Word has length 107 [2024-11-14 04:03:31,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:03:31,226 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 386 transitions. [2024-11-14 04:03:31,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-14 04:03:31,227 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 386 transitions. [2024-11-14 04:03:31,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-14 04:03:31,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:03:31,229 INFO L215 NwaCegarLoop]: trace histogram [9, 3, 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] [2024-11-14 04:03:31,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 04:03:31,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:03:31,430 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:03:31,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:03:31,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1170570149, now seen corresponding path program 1 times [2024-11-14 04:03:31,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:03:31,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032866212] [2024-11-14 04:03:31,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:03:31,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:03:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:03:47,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466515097] [2024-11-14 04:03:47,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:03:47,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:03:47,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:03:47,942 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:03:47,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33543398-076d-4937-b2ad-ec2f01256e6a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process