./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a846a77e79e267e728f6b3926ab21995aa009422ba7c404ee2d371931ead2c4d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:06:17,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:06:17,176 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 01:06:17,185 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:06:17,185 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:06:17,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:06:17,224 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:06:17,225 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:06:17,226 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:06:17,226 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:06:17,226 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:06:17,227 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:06:17,227 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:06:17,227 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:06:17,227 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:06:17,228 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:06:17,228 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:06:17,232 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:06:17,233 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:06:17,233 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:06:17,234 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:06:17,234 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:06:17,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:06:17,238 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:06:17,239 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:06:17,239 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:06:17,239 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:06:17,240 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:06:17,240 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:06:17,240 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:06:17,240 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:06:17,241 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:06:17,241 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:06:17,244 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:06:17,244 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:06:17,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:06:17,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:06:17,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:06:17,245 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:06:17,245 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:06:17,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:06:17,247 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:06:17,247 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:06:17,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:06:17,248 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a846a77e79e267e728f6b3926ab21995aa009422ba7c404ee2d371931ead2c4d [2024-11-09 01:06:17,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:06:17,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:06:17,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:06:17,552 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:06:17,552 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:06:17,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness_negated.i Unable to find full path for "g++" [2024-11-09 01:06:19,538 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:06:20,043 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:06:20,043 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness_negated.i [2024-11-09 01:06:20,086 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/data/07dc86e65/e2f3bafbcb864f96a6325f807f7a8ccd/FLAG2f6516f2b [2024-11-09 01:06:20,105 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/data/07dc86e65/e2f3bafbcb864f96a6325f807f7a8ccd [2024-11-09 01:06:20,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:06:20,109 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:06:20,111 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:06:20,111 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:06:20,117 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:06:20,118 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:06:20" (1/1) ... [2024-11-09 01:06:20,121 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a99cdf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:06:20, skipping insertion in model container [2024-11-09 01:06:20,121 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:06:20" (1/1) ... [2024-11-09 01:06:20,232 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:06:20,560 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_1405f812-0930-4d11-8d5d-dab22cb9d1fc/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness_negated.i[4494,4507] [2024-11-09 01:06:20,569 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_1405f812-0930-4d11-8d5d-dab22cb9d1fc/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness_negated.i[4554,4567] [2024-11-09 01:06:21,636 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:21,638 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:21,638 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:21,639 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:21,641 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:21,659 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:21,660 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:21,662 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:21,663 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:21,666 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:21,667 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:21,668 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:21,669 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:22,473 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_1405f812-0930-4d11-8d5d-dab22cb9d1fc/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness_negated.i[150870,150883] [2024-11-09 01:06:22,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:06:22,537 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:06:22,554 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_1405f812-0930-4d11-8d5d-dab22cb9d1fc/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness_negated.i[4494,4507] [2024-11-09 01:06:22,557 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_1405f812-0930-4d11-8d5d-dab22cb9d1fc/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness_negated.i[4554,4567] [2024-11-09 01:06:22,694 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:22,697 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:22,698 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:22,700 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:22,703 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:22,724 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:22,725 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:22,726 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:22,727 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:22,729 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:22,731 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:22,732 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:22,733 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:06:22,874 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_1405f812-0930-4d11-8d5d-dab22cb9d1fc/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness_negated.i[150870,150883] [2024-11-09 01:06:22,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:06:23,130 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:06:23,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:06:23 WrapperNode [2024-11-09 01:06:23,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:06:23,133 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:06:23,133 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:06:23,134 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:06:23,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:06:23" (1/1) ... [2024-11-09 01:06:23,256 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:06:23" (1/1) ... [2024-11-09 01:06:23,309 INFO L138 Inliner]: procedures = 668, calls = 1043, calls flagged for inlining = 51, calls inlined = 5, statements flattened = 133 [2024-11-09 01:06:23,310 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:06:23,310 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:06:23,311 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:06:23,311 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:06:23,320 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:06:23" (1/1) ... [2024-11-09 01:06:23,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:06:23" (1/1) ... [2024-11-09 01:06:23,324 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:06:23" (1/1) ... [2024-11-09 01:06:23,327 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:06:23" (1/1) ... [2024-11-09 01:06:23,350 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:06:23" (1/1) ... [2024-11-09 01:06:23,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:06:23" (1/1) ... [2024-11-09 01:06:23,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:06:23" (1/1) ... [2024-11-09 01:06:23,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:06:23" (1/1) ... [2024-11-09 01:06:23,374 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:06:23,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:06:23,375 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:06:23,375 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:06:23,376 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:06:23" (1/1) ... [2024-11-09 01:06:23,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:06:23,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:06:23,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:06:23,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:06:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_back [2024-11-09 01:06:23,461 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_back [2024-11-09 01:06:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 01:06:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 01:06:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 01:06:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2024-11-09 01:06:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2024-11-09 01:06:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 01:06:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2024-11-09 01:06:23,462 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2024-11-09 01:06:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:06:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 01:06:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:06:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:06:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2024-11-09 01:06:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2024-11-09 01:06:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 01:06:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 01:06:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 01:06:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 01:06:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 01:06:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-09 01:06:23,465 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-09 01:06:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2024-11-09 01:06:23,465 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2024-11-09 01:06:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:06:23,727 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:06:23,729 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:06:24,061 INFO L? ?]: Removed 65 outVars from TransFormulas that were not future-live. [2024-11-09 01:06:24,061 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:06:24,211 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:06:24,212 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 01:06:24,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:06:24 BoogieIcfgContainer [2024-11-09 01:06:24,212 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:06:24,215 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:06:24,215 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:06:24,218 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:06:24,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:06:20" (1/3) ... [2024-11-09 01:06:24,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4d7417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:06:24, skipping insertion in model container [2024-11-09 01:06:24,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:06:23" (2/3) ... [2024-11-09 01:06:24,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4d7417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:06:24, skipping insertion in model container [2024-11-09 01:06:24,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:06:24" (3/3) ... [2024-11-09 01:06:24,221 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_back_harness_negated.i [2024-11-09 01:06:24,240 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:06:24,240 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:06:24,326 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:06:24,333 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;@5b483b26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:06:24,333 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:06:24,337 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 38 states have (on average 1.263157894736842) internal successors, (48), 39 states have internal predecessors, (48), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:06:24,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-09 01:06:24,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:06:24,347 INFO L215 NwaCegarLoop]: trace histogram [6, 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] [2024-11-09 01:06:24,347 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:06:24,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:06:24,353 INFO L85 PathProgramCache]: Analyzing trace with hash -238971518, now seen corresponding path program 1 times [2024-11-09 01:06:24,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:06:24,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444543222] [2024-11-09 01:06:24,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:24,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:06:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:06:25,718 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 01:06:25,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:06:25,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444543222] [2024-11-09 01:06:25,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444543222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:06:25,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:06:25,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 01:06:25,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701885616] [2024-11-09 01:06:25,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:06:25,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:06:25,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:06:25,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:06:25,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:06:25,761 INFO L87 Difference]: Start difference. First operand has 72 states, 38 states have (on average 1.263157894736842) internal successors, (48), 39 states have internal predecessors, (48), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-09 01:06:25,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:06:25,947 INFO L93 Difference]: Finished difference Result 123 states and 172 transitions. [2024-11-09 01:06:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:06:25,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 53 [2024-11-09 01:06:25,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:06:25,957 INFO L225 Difference]: With dead ends: 123 [2024-11-09 01:06:25,958 INFO L226 Difference]: Without dead ends: 78 [2024-11-09 01:06:25,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:06:25,964 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 3 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:06:25,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 401 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:06:25,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-09 01:06:26,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 77. [2024-11-09 01:06:26,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 43 states have internal predecessors, (50), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (27), 24 states have call predecessors, (27), 24 states have call successors, (27) [2024-11-09 01:06:26,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 102 transitions. [2024-11-09 01:06:26,013 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 102 transitions. Word has length 53 [2024-11-09 01:06:26,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:06:26,014 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 102 transitions. [2024-11-09 01:06:26,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-09 01:06:26,014 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 102 transitions. [2024-11-09 01:06:26,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 01:06:26,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:06:26,017 INFO L215 NwaCegarLoop]: trace histogram [6, 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] [2024-11-09 01:06:26,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:06:26,018 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:06:26,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:06:26,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1384682462, now seen corresponding path program 1 times [2024-11-09 01:06:26,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:06:26,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662726669] [2024-11-09 01:06:26,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:26,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:06:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:06:26,442 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 01:06:26,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:06:26,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662726669] [2024-11-09 01:06:26,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662726669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:06:26,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:06:26,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 01:06:26,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810143977] [2024-11-09 01:06:26,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:06:26,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 01:06:26,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:06:26,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 01:06:26,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:06:26,450 INFO L87 Difference]: Start difference. First operand 77 states and 102 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 01:06:26,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:06:26,725 INFO L93 Difference]: Finished difference Result 143 states and 188 transitions. [2024-11-09 01:06:26,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 01:06:26,726 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 55 [2024-11-09 01:06:26,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:06:26,728 INFO L225 Difference]: With dead ends: 143 [2024-11-09 01:06:26,730 INFO L226 Difference]: Without dead ends: 79 [2024-11-09 01:06:26,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:06:26,732 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 27 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:06:26,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 458 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:06:26,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-09 01:06:26,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2024-11-09 01:06:26,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 41 states have (on average 1.1951219512195121) internal successors, (49), 43 states have internal predecessors, (49), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (27), 24 states have call predecessors, (27), 24 states have call successors, (27) [2024-11-09 01:06:26,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 101 transitions. [2024-11-09 01:06:26,762 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 101 transitions. Word has length 55 [2024-11-09 01:06:26,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:06:26,763 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 101 transitions. [2024-11-09 01:06:26,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 01:06:26,763 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 101 transitions. [2024-11-09 01:06:26,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 01:06:26,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:06:26,765 INFO L215 NwaCegarLoop]: trace histogram [6, 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] [2024-11-09 01:06:26,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 01:06:26,766 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:06:26,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:06:26,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1249312826, now seen corresponding path program 1 times [2024-11-09 01:06:26,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:06:26,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496719042] [2024-11-09 01:06:26,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:26,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:06:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:06:27,116 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 01:06:27,118 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:06:27,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496719042] [2024-11-09 01:06:27,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496719042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:06:27,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:06:27,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 01:06:27,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126692956] [2024-11-09 01:06:27,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:06:27,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 01:06:27,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:06:27,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 01:06:27,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:06:27,124 INFO L87 Difference]: Start difference. First operand 77 states and 101 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 01:06:27,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:06:27,409 INFO L93 Difference]: Finished difference Result 150 states and 198 transitions. [2024-11-09 01:06:27,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 01:06:27,410 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 57 [2024-11-09 01:06:27,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:06:27,414 INFO L225 Difference]: With dead ends: 150 [2024-11-09 01:06:27,416 INFO L226 Difference]: Without dead ends: 85 [2024-11-09 01:06:27,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-09 01:06:27,419 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 39 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:06:27,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 496 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:06:27,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-09 01:06:27,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2024-11-09 01:06:27,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 43 states have (on average 1.186046511627907) internal successors, (51), 45 states have internal predecessors, (51), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (27), 24 states have call predecessors, (27), 24 states have call successors, (27) [2024-11-09 01:06:27,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2024-11-09 01:06:27,448 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 57 [2024-11-09 01:06:27,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:06:27,449 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2024-11-09 01:06:27,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 01:06:27,449 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2024-11-09 01:06:27,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 01:06:27,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:06:27,452 INFO L215 NwaCegarLoop]: trace histogram [6, 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] [2024-11-09 01:06:27,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 01:06:27,456 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:06:27,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:06:27,456 INFO L85 PathProgramCache]: Analyzing trace with hash -2066064661, now seen corresponding path program 1 times [2024-11-09 01:06:27,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:06:27,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775115515] [2024-11-09 01:06:27,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:27,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:06:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:06:27,912 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 01:06:27,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:06:27,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775115515] [2024-11-09 01:06:27,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775115515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:06:27,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:06:27,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 01:06:27,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151684049] [2024-11-09 01:06:27,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:06:27,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 01:06:27,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:06:27,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 01:06:27,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:06:27,915 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 01:06:28,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:06:28,190 INFO L93 Difference]: Finished difference Result 152 states and 198 transitions. [2024-11-09 01:06:28,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 01:06:28,190 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 59 [2024-11-09 01:06:28,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:06:28,192 INFO L225 Difference]: With dead ends: 152 [2024-11-09 01:06:28,192 INFO L226 Difference]: Without dead ends: 85 [2024-11-09 01:06:28,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-09 01:06:28,194 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 34 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:06:28,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 510 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:06:28,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-09 01:06:28,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 80. [2024-11-09 01:06:28,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 46 states have internal predecessors, (52), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (27), 24 states have call predecessors, (27), 24 states have call successors, (27) [2024-11-09 01:06:28,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 104 transitions. [2024-11-09 01:06:28,208 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 104 transitions. Word has length 59 [2024-11-09 01:06:28,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:06:28,208 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 104 transitions. [2024-11-09 01:06:28,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 01:06:28,209 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 104 transitions. [2024-11-09 01:06:28,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 01:06:28,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:06:28,210 INFO L215 NwaCegarLoop]: trace histogram [6, 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] [2024-11-09 01:06:28,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 01:06:28,211 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:06:28,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:06:28,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1427631544, now seen corresponding path program 1 times [2024-11-09 01:06:28,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:06:28,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868598552] [2024-11-09 01:06:28,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:28,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:06:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:06:28,626 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-09 01:06:28,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:06:28,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868598552] [2024-11-09 01:06:28,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868598552] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:06:28,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127407186] [2024-11-09 01:06:28,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:28,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:06:28,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:06:28,629 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:06:28,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:06:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:06:28,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-09 01:06:28,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:06:29,053 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 14 treesize of output 15 [2024-11-09 01:06:29,066 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 14 treesize of output 15 [2024-11-09 01:06:29,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2024-11-09 01:06:29,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2024-11-09 01:06:31,676 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 01:06:31,676 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:06:31,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127407186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:06:31,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:06:31,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2024-11-09 01:06:31,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391468473] [2024-11-09 01:06:31,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:06:31,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 01:06:31,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:06:31,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 01:06:31,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-09 01:06:31,681 INFO L87 Difference]: Start difference. First operand 80 states and 104 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-09 01:06:32,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:06:32,772 INFO L93 Difference]: Finished difference Result 212 states and 276 transitions. [2024-11-09 01:06:32,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 01:06:32,773 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 62 [2024-11-09 01:06:32,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:06:32,777 INFO L225 Difference]: With dead ends: 212 [2024-11-09 01:06:32,778 INFO L226 Difference]: Without dead ends: 146 [2024-11-09 01:06:32,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 51 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-09 01:06:32,779 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 69 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:06:32,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 440 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 01:06:32,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-09 01:06:32,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2024-11-09 01:06:32,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 79 states have (on average 1.1898734177215189) internal successors, (94), 82 states have internal predecessors, (94), 47 states have call successors, (47), 16 states have call predecessors, (47), 17 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2024-11-09 01:06:32,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 189 transitions. [2024-11-09 01:06:32,819 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 189 transitions. Word has length 62 [2024-11-09 01:06:32,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:06:32,820 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 189 transitions. [2024-11-09 01:06:32,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-09 01:06:32,820 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 189 transitions. [2024-11-09 01:06:32,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 01:06:32,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:06:32,826 INFO L215 NwaCegarLoop]: trace histogram [6, 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] [2024-11-09 01:06:32,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 01:06:33,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:06:33,026 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:06:33,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:06:33,027 INFO L85 PathProgramCache]: Analyzing trace with hash 2035511779, now seen corresponding path program 1 times [2024-11-09 01:06:33,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:06:33,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689050175] [2024-11-09 01:06:33,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:33,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:06:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:06:33,660 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-09 01:06:33,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:06:33,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689050175] [2024-11-09 01:06:33,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689050175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:06:33,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:06:33,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 01:06:33,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219585106] [2024-11-09 01:06:33,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:06:33,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:06:33,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:06:33,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:06:33,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:06:33,664 INFO L87 Difference]: Start difference. First operand 144 states and 189 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 01:06:33,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:06:33,798 INFO L93 Difference]: Finished difference Result 164 states and 214 transitions. [2024-11-09 01:06:33,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:06:33,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 64 [2024-11-09 01:06:33,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:06:33,805 INFO L225 Difference]: With dead ends: 164 [2024-11-09 01:06:33,805 INFO L226 Difference]: Without dead ends: 162 [2024-11-09 01:06:33,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:06:33,807 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 3 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:06:33,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 463 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:06:33,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-09 01:06:33,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 153. [2024-11-09 01:06:33,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 85 states have (on average 1.1764705882352942) internal successors, (100), 89 states have internal predecessors, (100), 48 states have call successors, (48), 17 states have call predecessors, (48), 19 states have return successors, (52), 46 states have call predecessors, (52), 46 states have call successors, (52) [2024-11-09 01:06:33,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 200 transitions. [2024-11-09 01:06:33,856 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 200 transitions. Word has length 64 [2024-11-09 01:06:33,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:06:33,857 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 200 transitions. [2024-11-09 01:06:33,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 01:06:33,858 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 200 transitions. [2024-11-09 01:06:33,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 01:06:33,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:06:33,859 INFO L215 NwaCegarLoop]: trace histogram [6, 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] [2024-11-09 01:06:33,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 01:06:33,860 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:06:33,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:06:33,861 INFO L85 PathProgramCache]: Analyzing trace with hash 576241596, now seen corresponding path program 1 times [2024-11-09 01:06:33,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:06:33,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894079775] [2024-11-09 01:06:33,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:33,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:06:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:06:34,309 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 01:06:34,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:06:34,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894079775] [2024-11-09 01:06:34,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894079775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:06:34,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460408275] [2024-11-09 01:06:34,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:34,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:06:34,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:06:34,312 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:06:34,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1405f812-0930-4d11-8d5d-dab22cb9d1fc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 01:06:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:06:34,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-09 01:06:34,560 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:06:34,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 01:06:34,779 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 14 treesize of output 15 [2024-11-09 01:06:34,800 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 14 treesize of output 15 [2024-11-09 01:06:34,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 36 [2024-11-09 01:06:34,964 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 01:06:34,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 20 [2024-11-09 01:06:34,993 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 01:06:34,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-09 01:06:35,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 36 [2024-11-09 01:06:35,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2024-11-09 01:06:35,173 INFO L349 Elim1Store]: treesize reduction 60, result has 7.7 percent of original size [2024-11-09 01:06:35,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 158 treesize of output 141 [2024-11-09 01:06:35,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2024-11-09 01:06:35,194 INFO L349 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2024-11-09 01:06:35,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 160 treesize of output 114 [2024-11-09 01:06:35,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-09 01:06:35,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 98 [2024-11-09 01:06:35,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 21 [2024-11-09 01:06:38,158 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 01:06:38,158 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:06:42,440 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:06:42,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 376 treesize of output 461 [2024-11-09 01:06:43,723 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:06:43,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 352 treesize of output 449 [2024-11-09 01:06:44,951 INFO L349 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2024-11-09 01:06:44,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 58 [2024-11-09 01:06:45,050 INFO L349 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2024-11-09 01:06:45,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 58 [2024-11-09 01:06:45,151 INFO L349 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2024-11-09 01:06:45,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 58 [2024-11-09 01:06:45,340 INFO L349 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2024-11-09 01:06:45,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 58 [2024-11-09 01:06:45,453 INFO L349 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2024-11-09 01:06:45,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 58 [2024-11-09 01:06:45,580 INFO L349 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2024-11-09 01:06:45,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 58 [2024-11-09 01:06:45,788 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-09 01:06:45,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 19 [2024-11-09 01:06:45,829 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-09 01:06:45,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 19 [2024-11-09 01:06:45,979 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-09 01:06:45,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 19 [2024-11-09 01:06:46,382 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-09 01:06:46,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 19 [2024-11-09 01:06:46,526 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-09 01:06:46,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 19 [2024-11-09 01:06:49,733 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-09 01:06:49,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 1 [2024-11-09 01:06:53,080 INFO L349 Elim1Store]: treesize reduction 95, result has 35.8 percent of original size [2024-11-09 01:06:53,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 152 treesize of output 241 [2024-11-09 01:06:53,632 INFO L349 Elim1Store]: treesize reduction 8, result has 83.7 percent of original size [2024-11-09 01:06:53,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 541 treesize of output 561 [2024-11-09 01:06:53,863 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:06:54,038 INFO L349 Elim1Store]: treesize reduction 69, result has 35.5 percent of original size [2024-11-09 01:06:54,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 88 treesize of output 187 [2024-11-09 01:06:55,098 INFO L349 Elim1Store]: treesize reduction 72, result has 17.2 percent of original size [2024-11-09 01:06:55,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 130 treesize of output 121 [2024-11-09 01:06:55,181 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-09 01:06:55,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 24 [2024-11-09 01:06:55,215 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:06:55,302 INFO L349 Elim1Store]: treesize reduction 42, result has 42.5 percent of original size [2024-11-09 01:06:55,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 81 treesize of output 131 [2024-11-09 01:06:55,429 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:06:55,458 INFO L349 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2024-11-09 01:06:55,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 53 [2024-11-09 01:06:55,979 INFO L349 Elim1Store]: treesize reduction 230, result has 29.7 percent of original size [2024-11-09 01:06:55,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 285 treesize of output 521 [2024-11-09 01:06:56,545 INFO L349 Elim1Store]: treesize reduction 197, result has 10.9 percent of original size [2024-11-09 01:06:56,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 16 case distinctions, treesize of input 202 treesize of output 263 [2024-11-09 01:06:56,854 INFO L349 Elim1Store]: treesize reduction 163, result has 4.7 percent of original size [2024-11-09 01:06:56,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 15 case distinctions, treesize of input 249 treesize of output 230 [2024-11-09 01:06:57,317 INFO L349 Elim1Store]: treesize reduction 200, result has 30.8 percent of original size [2024-11-09 01:06:57,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 558 treesize of output 670 [2024-11-09 01:06:58,207 INFO L349 Elim1Store]: treesize reduction 280, result has 33.5 percent of original size [2024-11-09 01:06:58,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 9 new quantified variables, introduced 39 case distinctions, treesize of input 1378 treesize of output 1657 [2024-11-09 01:07:05,848 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:07:05,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 6334 treesize of output 6600 [2024-11-09 01:07:07,611 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:07:07,665 INFO L349 Elim1Store]: treesize reduction 42, result has 42.5 percent of original size [2024-11-09 01:07:07,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 81 treesize of output 131 [2024-11-09 01:07:07,746 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:07:07,766 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:07:07,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 38 [2024-11-09 01:07:08,349 INFO L349 Elim1Store]: treesize reduction 230, result has 29.7 percent of original size [2024-11-09 01:07:08,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 167 treesize of output 465 [2024-11-09 01:07:10,296 INFO L349 Elim1Store]: treesize reduction 318, result has 24.5 percent of original size [2024-11-09 01:07:10,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 9 new quantified variables, introduced 37 case distinctions, treesize of input 2217 treesize of output 2421 [2024-11-09 01:07:10,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:07:10,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:07:10,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:07:10,957 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2024-11-09 01:07:10,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 86 treesize of output 125 [2024-11-09 01:07:11,017 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-09 01:07:11,361 INFO L349 Elim1Store]: treesize reduction 57, result has 12.3 percent of original size [2024-11-09 01:07:11,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 527 treesize of output 510 [2024-11-09 01:07:11,477 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:11,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:11,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 4 [2024-11-09 01:07:11,591 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2024-11-09 01:07:11,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 45 treesize of output 24 [2024-11-09 01:07:11,819 INFO L349 Elim1Store]: treesize reduction 175, result has 32.2 percent of original size [2024-11-09 01:07:11,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 154 treesize of output 438 [2024-11-09 01:07:12,494 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:07:12,644 INFO L349 Elim1Store]: treesize reduction 48, result has 62.2 percent of original size [2024-11-09 01:07:12,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 668 treesize of output 789 [2024-11-09 01:07:13,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2024-11-09 01:07:13,171 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-11-09 01:07:13,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 11 [2024-11-09 01:07:13,259 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:07:13,275 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:07:13,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 99 [2024-11-09 01:07:13,435 INFO L349 Elim1Store]: treesize reduction 101, result has 15.8 percent of original size [2024-11-09 01:07:13,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 143 treesize of output 166 [2024-11-09 01:07:14,448 INFO L349 Elim1Store]: treesize reduction 230, result has 29.7 percent of original size [2024-11-09 01:07:14,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 167 treesize of output 465 [2024-11-09 01:07:18,130 INFO L349 Elim1Store]: treesize reduction 485, result has 35.4 percent of original size [2024-11-09 01:07:18,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 11 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 14 new quantified variables, introduced 69 case distinctions, treesize of input 2439 treesize of output 3203 [2024-11-09 01:07:22,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:07:22,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:07:22,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:07:22,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:07:22,232 INFO L349 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2024-11-09 01:07:22,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 167 treesize of output 371 [2024-11-09 01:07:22,497 INFO L224 Elim1Store]: Index analysis took 102 ms [2024-11-09 01:07:22,537 INFO L349 Elim1Store]: treesize reduction 232, result has 0.4 percent of original size [2024-11-09 01:07:22,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 19 case distinctions, treesize of input 175 treesize of output 369 [2024-11-09 01:07:25,264 INFO L349 Elim1Store]: treesize reduction 48, result has 26.2 percent of original size [2024-11-09 01:07:25,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 5682 treesize of output 5663 [2024-11-09 01:07:26,215 INFO L349 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2024-11-09 01:07:26,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 30 [2024-11-09 01:07:26,245 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-09 01:07:26,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 13 [2024-11-09 01:07:26,423 INFO L349 Elim1Store]: treesize reduction 95, result has 35.8 percent of original size [2024-11-09 01:07:26,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 255 treesize of output 284 [2024-11-09 01:07:26,736 INFO L349 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2024-11-09 01:07:26,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 82 [2024-11-09 01:07:26,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-09 01:07:26,857 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-09 01:07:26,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 4 [2024-11-09 01:07:27,819 INFO L349 Elim1Store]: treesize reduction 211, result has 28.7 percent of original size [2024-11-09 01:07:27,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 150 treesize of output 346 [2024-11-09 01:07:28,746 INFO L349 Elim1Store]: treesize reduction 76, result has 18.3 percent of original size [2024-11-09 01:07:28,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 284 treesize of output 273 [2024-11-09 01:07:36,318 WARN L286 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 149 DAG size of output: 106 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 01:07:36,318 INFO L349 Elim1Store]: treesize reduction 149, result has 53.1 percent of original size [2024-11-09 01:07:36,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 9 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 11 new quantified variables, introduced 37 case distinctions, treesize of input 1422 treesize of output 1922 [2024-11-09 01:07:38,032 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:38,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:38,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:38,245 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:38,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:38,383 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:38,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:38,535 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:38,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:38,644 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:38,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:38,797 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:38,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:38,889 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:38,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:40,553 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:40,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:40,668 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:40,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:40,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:40,881 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:40,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:41,018 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:41,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:41,141 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:41,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:41,249 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:41,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:41,395 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:41,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:43,529 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:43,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:43,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:43,695 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:43,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:43,850 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:43,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:43,932 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:43,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:44,058 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:44,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:44,180 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:44,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:44,301 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 01:07:44,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2024-11-09 01:07:45,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:07:47,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:07:49,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:07:50,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:07:51,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:07:55,603 INFO L349 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2024-11-09 01:07:55,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 223 treesize of output 247 [2024-11-09 01:07:55,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 23 [2024-11-09 01:07:55,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:07:55,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 4 [2024-11-09 01:07:56,043 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-09 01:07:56,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 57 [2024-11-09 01:07:56,177 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-09 01:07:56,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 70 [2024-11-09 01:07:56,250 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-09 01:07:56,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 71 [2024-11-09 01:07:56,399 INFO L349 Elim1Store]: treesize reduction 27, result has 32.5 percent of original size [2024-11-09 01:07:56,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 257 treesize of output 261 [2024-11-09 01:07:56,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 9 [2024-11-09 01:07:56,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:07:56,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:07:56,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-09 01:07:56,746 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-09 01:07:56,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 70 [2024-11-09 01:07:56,791 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-09 01:07:56,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 44 [2024-11-09 01:07:56,950 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2024-11-09 01:07:56,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 223 treesize of output 235 [2024-11-09 01:07:57,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 4 [2024-11-09 01:07:57,379 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-09 01:07:57,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 31 [2024-11-09 01:07:57,578 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:07:57,588 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-09 01:07:57,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 17 [2024-11-09 01:08:14,271 WARN L286 SmtUtils]: Spent 15.25s on a formula simplification. DAG size of input: 335 DAG size of output: 163 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 01:08:14,272 INFO L349 Elim1Store]: treesize reduction 683, result has 30.1 percent of original size [2024-11-09 01:08:14,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 14 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 16 new quantified variables, introduced 61 case distinctions, treesize of input 670 treesize of output 2519 [2024-11-09 01:08:17,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:08:17,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:08:17,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:08:17,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:08:19,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:08:19,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:08:21,773 INFO L224 Elim1Store]: Index analysis took 5089 ms [2024-11-09 01:08:24,829 INFO L349 Elim1Store]: treesize reduction 361, result has 2.2 percent of original size [2024-11-09 01:08:24,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 13 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 40 case distinctions, treesize of input 361 treesize of output 2414