./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/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_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/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 32bit --witnessprinter.graph.data.programhash 0286582125bb2879636b8cf3b934bed172850a3a3b0d880c07306d10439134a7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:19:10,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:19:10,605 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:19:10,611 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:19:10,611 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:19:10,666 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:19:10,667 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:19:10,668 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:19:10,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:19:10,670 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:19:10,671 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:19:10,671 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:19:10,671 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:19:10,673 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:19:10,673 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:19:10,673 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:19:10,673 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:19:10,674 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:19:10,674 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:19:10,674 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:19:10,675 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:19:10,680 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:19:10,681 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:19:10,681 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:19:10,681 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:19:10,682 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:19:10,682 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:19:10,682 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:19:10,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:19:10,683 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:19:10,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:19:10,683 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:19:10,684 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:19:10,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:19:10,685 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:19:10,686 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:19:10,686 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:19:10,693 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:19:10,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:19:10,693 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:19:10,693 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:19:10,694 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:19:10,694 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:19:10,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:19:10,694 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:19:10,695 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:19:10,695 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:19:10,695 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_cb026c4e-3df3-451f-8adb-e8f517620074/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0286582125bb2879636b8cf3b934bed172850a3a3b0d880c07306d10439134a7 [2024-11-09 06:19:10,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:19:11,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:19:11,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:19:11,024 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:19:11,024 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:19:11,025 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i Unable to find full path for "g++" [2024-11-09 06:19:13,179 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:19:13,387 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:19:13,388 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2024-11-09 06:19:13,397 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/data/f2f55016c/5e6b666d795646d68b5c2e34107f2fa3/FLAGf20724062 [2024-11-09 06:19:13,422 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/data/f2f55016c/5e6b666d795646d68b5c2e34107f2fa3 [2024-11-09 06:19:13,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:19:13,430 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:19:13,432 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:19:13,432 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:19:13,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:19:13,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:19:13" (1/1) ... [2024-11-09 06:19:13,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9f7288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:13, skipping insertion in model container [2024-11-09 06:19:13,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:19:13" (1/1) ... [2024-11-09 06:19:13,463 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:19:13,708 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_cb026c4e-3df3-451f-8adb-e8f517620074/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i[838,851] [2024-11-09 06:19:13,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:19:13,749 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:19:13,765 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_cb026c4e-3df3-451f-8adb-e8f517620074/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i[838,851] [2024-11-09 06:19:13,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:19:13,802 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:19:13,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:13 WrapperNode [2024-11-09 06:19:13,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:19:13,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:19:13,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:19:13,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:19:13,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:13" (1/1) ... [2024-11-09 06:19:13,817 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:13" (1/1) ... [2024-11-09 06:19:13,849 INFO L138 Inliner]: procedures = 18, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 149 [2024-11-09 06:19:13,850 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:19:13,850 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:19:13,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:19:13,851 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:19:13,860 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:13" (1/1) ... [2024-11-09 06:19:13,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:13" (1/1) ... [2024-11-09 06:19:13,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:13" (1/1) ... [2024-11-09 06:19:13,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:13" (1/1) ... [2024-11-09 06:19:13,870 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:13" (1/1) ... [2024-11-09 06:19:13,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:13" (1/1) ... [2024-11-09 06:19:13,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:13" (1/1) ... [2024-11-09 06:19:13,877 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:13" (1/1) ... [2024-11-09 06:19:13,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:19:13,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:19:13,881 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:19:13,881 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:19:13,882 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:13" (1/1) ... [2024-11-09 06:19:13,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:19:13,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:19:13,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:19:13,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:19:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:19:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:19:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:19:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:19:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:19:14,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:19:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:19:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:19:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:19:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:19:14,150 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:19:14,157 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:19:14,506 INFO L? ?]: Removed 46 outVars from TransFormulas that were not future-live. [2024-11-09 06:19:14,507 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:19:14,582 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:19:14,586 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:19:14,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:19:14 BoogieIcfgContainer [2024-11-09 06:19:14,587 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:19:14,589 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:19:14,592 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:19:14,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:19:14,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:19:13" (1/3) ... [2024-11-09 06:19:14,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7355262d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:19:14, skipping insertion in model container [2024-11-09 06:19:14,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:13" (2/3) ... [2024-11-09 06:19:14,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7355262d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:19:14, skipping insertion in model container [2024-11-09 06:19:14,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:19:14" (3/3) ... [2024-11-09 06:19:14,601 INFO L112 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2024-11-09 06:19:14,626 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:19:14,626 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:19:14,684 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:19:14,691 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;@5e6a673a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:19:14,691 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:19:14,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 40 states have (on average 1.575) internal successors, (63), 41 states have internal predecessors, (63), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:19:14,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 06:19:14,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:19:14,705 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:19:14,707 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:19:14,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:19:14,714 INFO L85 PathProgramCache]: Analyzing trace with hash -2086206764, now seen corresponding path program 1 times [2024-11-09 06:19:14,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:19:14,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112089232] [2024-11-09 06:19:14,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:14,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:19:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:19:14,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:19:14,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:19:14,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112089232] [2024-11-09 06:19:14,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112089232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:19:14,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:19:14,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:19:14,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662363378] [2024-11-09 06:19:14,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:19:14,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:19:14,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:19:14,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:19:14,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:19:14,986 INFO L87 Difference]: Start difference. First operand has 46 states, 40 states have (on average 1.575) internal successors, (63), 41 states have internal predecessors, (63), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:19:15,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:19:15,127 INFO L93 Difference]: Finished difference Result 112 states and 179 transitions. [2024-11-09 06:19:15,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:19:15,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-09 06:19:15,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:19:15,139 INFO L225 Difference]: With dead ends: 112 [2024-11-09 06:19:15,139 INFO L226 Difference]: Without dead ends: 67 [2024-11-09 06:19:15,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:19:15,146 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 22 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:19:15,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 88 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:19:15,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-09 06:19:15,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 46. [2024-11-09 06:19:15,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.4878048780487805) internal successors, (61), 41 states have internal predecessors, (61), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:19:15,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 67 transitions. [2024-11-09 06:19:15,201 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 67 transitions. Word has length 11 [2024-11-09 06:19:15,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:19:15,202 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 67 transitions. [2024-11-09 06:19:15,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:19:15,204 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 67 transitions. [2024-11-09 06:19:15,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 06:19:15,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:19:15,206 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:19:15,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:19:15,207 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:19:15,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:19:15,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1105654041, now seen corresponding path program 1 times [2024-11-09 06:19:15,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:19:15,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842506052] [2024-11-09 06:19:15,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:15,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:19:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:19:15,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:19:15,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:19:15,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842506052] [2024-11-09 06:19:15,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842506052] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:19:15,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218250923] [2024-11-09 06:19:15,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:15,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:19:15,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:19:15,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:19:15,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:19:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:19:15,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:19:15,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:19:15,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:19:15,549 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:19:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:19:15,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218250923] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:19:15,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [467113058] [2024-11-09 06:19:15,629 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2024-11-09 06:19:15,629 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:19:15,633 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:19:15,640 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:19:15,640 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:19:16,180 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:19:16,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [467113058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:19:16,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:19:16,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3, 3, 3] total 10 [2024-11-09 06:19:16,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809723249] [2024-11-09 06:19:16,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:19:16,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:19:16,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:19:16,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:19:16,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:19:16,308 INFO L87 Difference]: Start difference. First operand 46 states and 67 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:19:16,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:19:16,429 INFO L93 Difference]: Finished difference Result 91 states and 133 transitions. [2024-11-09 06:19:16,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:19:16,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-09 06:19:16,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:19:16,433 INFO L225 Difference]: With dead ends: 91 [2024-11-09 06:19:16,433 INFO L226 Difference]: Without dead ends: 48 [2024-11-09 06:19:16,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:19:16,436 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 19 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:19:16,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 97 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:19:16,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-09 06:19:16,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 43. [2024-11-09 06:19:16,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 39 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:19:16,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2024-11-09 06:19:16,451 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 13 [2024-11-09 06:19:16,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:19:16,452 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2024-11-09 06:19:16,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:19:16,452 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2024-11-09 06:19:16,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 06:19:16,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:19:16,456 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:19:16,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:19:16,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:19:16,662 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:19:16,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:19:16,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1823602828, now seen corresponding path program 1 times [2024-11-09 06:19:16,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:19:16,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557191776] [2024-11-09 06:19:16,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:16,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:19:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:19:16,846 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:19:16,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:19:16,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557191776] [2024-11-09 06:19:16,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557191776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:19:16,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:19:16,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:19:16,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110817616] [2024-11-09 06:19:16,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:19:16,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:19:16,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:19:16,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:19:16,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:19:16,849 INFO L87 Difference]: Start difference. First operand 43 states and 58 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:19:16,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:19:16,891 INFO L93 Difference]: Finished difference Result 90 states and 127 transitions. [2024-11-09 06:19:16,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:19:16,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-09 06:19:16,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:19:16,893 INFO L225 Difference]: With dead ends: 90 [2024-11-09 06:19:16,893 INFO L226 Difference]: Without dead ends: 58 [2024-11-09 06:19:16,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:19:16,894 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 21 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:19:16,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 86 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:19:16,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-09 06:19:16,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 45. [2024-11-09 06:19:16,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 41 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:19:16,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2024-11-09 06:19:16,903 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 24 [2024-11-09 06:19:16,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:19:16,903 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2024-11-09 06:19:16,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:19:16,904 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2024-11-09 06:19:16,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 06:19:16,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:19:16,905 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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 06:19:16,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:19:16,906 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:19:16,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:19:16,906 INFO L85 PathProgramCache]: Analyzing trace with hash -428499001, now seen corresponding path program 1 times [2024-11-09 06:19:16,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:19:16,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185639425] [2024-11-09 06:19:16,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:16,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:19:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:19:17,000 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:19:17,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:19:17,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185639425] [2024-11-09 06:19:17,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185639425] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:19:17,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714820539] [2024-11-09 06:19:17,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:17,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:19:17,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:19:17,003 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:19:17,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:19:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:19:17,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:19:17,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:19:17,123 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:19:17,124 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:19:17,169 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:19:17,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714820539] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:19:17,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1884079747] [2024-11-09 06:19:17,172 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-09 06:19:17,173 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:19:17,173 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:19:17,173 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:19:17,174 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:19:17,584 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:19:18,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1884079747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:19:18,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:19:18,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 4, 4] total 22 [2024-11-09 06:19:18,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954163660] [2024-11-09 06:19:18,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:19:18,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 06:19:18,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:19:18,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 06:19:18,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2024-11-09 06:19:18,101 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 13 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:19:18,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:19:18,321 INFO L93 Difference]: Finished difference Result 90 states and 125 transitions. [2024-11-09 06:19:18,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:19:18,322 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 13 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-09 06:19:18,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:19:18,323 INFO L225 Difference]: With dead ends: 90 [2024-11-09 06:19:18,324 INFO L226 Difference]: Without dead ends: 58 [2024-11-09 06:19:18,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2024-11-09 06:19:18,326 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 13 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:19:18,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 119 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:19:18,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-09 06:19:18,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 53. [2024-11-09 06:19:18,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 49 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:19:18,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2024-11-09 06:19:18,341 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 26 [2024-11-09 06:19:18,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:19:18,341 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2024-11-09 06:19:18,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 13 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:19:18,342 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2024-11-09 06:19:18,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 06:19:18,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:19:18,344 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:19:18,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:19:18,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:19:18,545 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:19:18,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:19:18,546 INFO L85 PathProgramCache]: Analyzing trace with hash 398609928, now seen corresponding path program 1 times [2024-11-09 06:19:18,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:19:18,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361371470] [2024-11-09 06:19:18,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:18,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:19:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:19:18,730 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:19:18,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:19:18,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361371470] [2024-11-09 06:19:18,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361371470] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:19:18,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577206280] [2024-11-09 06:19:18,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:18,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:19:18,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:19:18,734 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:19:18,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:19:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:19:18,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:19:18,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:19:18,860 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:19:18,861 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:19:18,895 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:19:18,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577206280] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:19:18,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1001012302] [2024-11-09 06:19:18,899 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 06:19:18,899 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:19:18,899 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:19:18,900 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:19:18,900 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:19:19,672 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:19:20,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1001012302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:19:20,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:19:20,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4, 4] total 19 [2024-11-09 06:19:20,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431978548] [2024-11-09 06:19:20,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:19:20,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:19:20,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:19:20,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:19:20,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:19:20,390 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:19:20,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:19:20,727 INFO L93 Difference]: Finished difference Result 62 states and 80 transitions. [2024-11-09 06:19:20,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:19:20,728 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2024-11-09 06:19:20,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:19:20,729 INFO L225 Difference]: With dead ends: 62 [2024-11-09 06:19:20,729 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 06:19:20,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 84 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2024-11-09 06:19:20,730 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:19:20,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 18 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:19:20,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 06:19:20,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 06:19:20,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:19:20,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 06:19:20,732 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2024-11-09 06:19:20,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:19:20,733 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 06:19:20,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:19:20,733 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 06:19:20,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 06:19:20,736 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:19:20,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 06:19:20,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:19:20,941 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-09 06:19:20,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 06:19:21,242 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:19:21,256 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 06:19:21,257 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#set~0!offset [2024-11-09 06:19:21,258 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#set~0!base [2024-11-09 06:19:21,259 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 06:19:21,259 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#values~0!offset [2024-11-09 06:19:21,259 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#set~0!offset [2024-11-09 06:19:21,260 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#values~0!base [2024-11-09 06:19:21,260 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#set~0!base [2024-11-09 06:19:21,261 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 06:19:21,261 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#values~0!offset [2024-11-09 06:19:21,261 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#set~0!offset [2024-11-09 06:19:21,261 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#values~0!base [2024-11-09 06:19:21,262 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#set~0!base [2024-11-09 06:19:21,262 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 06:19:21,262 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#values~0!offset [2024-11-09 06:19:21,263 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#set~0!offset [2024-11-09 06:19:21,263 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#values~0!base [2024-11-09 06:19:21,263 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#set~0!base [2024-11-09 06:19:21,264 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 06:19:21,264 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#set~0!offset [2024-11-09 06:19:21,264 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#set~0!base [2024-11-09 06:19:21,265 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 06:19:21,265 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~set!offset [2024-11-09 06:19:21,265 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~set!base [2024-11-09 06:19:21,266 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#values~0!offset [2024-11-09 06:19:21,266 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#set~0!offset [2024-11-09 06:19:21,266 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~n~0 [2024-11-09 06:19:21,266 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#values~0!base [2024-11-09 06:19:21,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#set~0!base [2024-11-09 06:19:21,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~v~0 [2024-11-09 06:19:21,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~v~0 [2024-11-09 06:19:21,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 06:19:21,268 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#set~0!offset [2024-11-09 06:19:21,268 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#set~0!base [2024-11-09 06:19:21,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:19:21 BoogieIcfgContainer [2024-11-09 06:19:21,275 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:19:21,275 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:19:21,275 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:19:21,276 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:19:21,276 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:19:14" (3/4) ... [2024-11-09 06:19:21,278 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 06:19:21,282 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 06:19:21,287 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-09 06:19:21,287 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-09 06:19:21,288 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 06:19:21,288 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 06:19:21,390 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 06:19:21,391 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 06:19:21,391 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:19:21,392 INFO L158 Benchmark]: Toolchain (without parser) took 7965.39ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 117.1MB in the beginning and 70.2MB in the end (delta: 46.8MB). Peak memory consumption was 111.4MB. Max. memory is 16.1GB. [2024-11-09 06:19:21,392 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:19:21,392 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.67ms. Allocated memory is still 146.8MB. Free memory was 117.1MB in the beginning and 103.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 06:19:21,393 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.05ms. Allocated memory is still 146.8MB. Free memory was 103.9MB in the beginning and 101.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:19:21,393 INFO L158 Benchmark]: Boogie Preprocessor took 29.65ms. Allocated memory is still 146.8MB. Free memory was 101.8MB in the beginning and 100.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:19:21,394 INFO L158 Benchmark]: RCFGBuilder took 706.20ms. Allocated memory is still 146.8MB. Free memory was 100.3MB in the beginning and 99.9MB in the end (delta: 381.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 06:19:21,394 INFO L158 Benchmark]: TraceAbstraction took 6685.75ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 99.2MB in the beginning and 76.5MB in the end (delta: 22.7MB). Peak memory consumption was 90.8MB. Max. memory is 16.1GB. [2024-11-09 06:19:21,394 INFO L158 Benchmark]: Witness Printer took 116.01ms. Allocated memory is still 211.8MB. Free memory was 76.5MB in the beginning and 70.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 06:19:21,396 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.67ms. Allocated memory is still 146.8MB. Free memory was 117.1MB in the beginning and 103.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.05ms. Allocated memory is still 146.8MB. Free memory was 103.9MB in the beginning and 101.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.65ms. Allocated memory is still 146.8MB. Free memory was 101.8MB in the beginning and 100.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 706.20ms. Allocated memory is still 146.8MB. Free memory was 100.3MB in the beginning and 99.9MB in the end (delta: 381.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6685.75ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 99.2MB in the beginning and 76.5MB in the end (delta: 22.7MB). Peak memory consumption was 90.8MB. Max. memory is 16.1GB. * Witness Printer took 116.01ms. Allocated memory is still 211.8MB. Free memory was 76.5MB in the beginning and 70.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#set~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#set~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#values~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#set~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#values~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#set~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#values~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#set~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#values~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#set~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#values~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#set~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#values~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#set~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#set~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#set~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~set!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~set!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#values~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#set~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~n~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#values~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#set~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~v~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~v~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#set~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#set~0!base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.3s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 408 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 229 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 350 IncrementalHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 179 mSDtfsCounter, 350 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 178 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=4, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 44 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 183 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 246 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 383 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 40/64 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 1.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 35, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 89, TOOLS_POST_TIME: 1.3s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 89, TOOLS_QUANTIFIERELIM_TIME: 1.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 170, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 2, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 12, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 18, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 35, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 6, LOOP_SUMMARIZER_CACHE_MISSES: 6, LOOP_SUMMARIZER_OVERALL_TIME: 1.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 18, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 595, DAG_COMPRESSION_RETAINED_NODES: 142, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((n == 0) && (x == 0)) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((((n == 0) && (0 <= v)) && (x == 0)) && (v <= 99999)) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((n == 0) && (0 <= v)) - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: ((n == 0) && (0 <= v)) - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: ((n == 0) && (x == 0)) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((size == 0) && (i == 0)) - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: ((0 <= x) && (n == 0)) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 13]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: 0 Ensures: 0 RESULT: Ultimate proved your program to be correct! [2024-11-09 06:19:21,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb026c4e-3df3-451f-8adb-e8f517620074/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE