./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ --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 c0e62a2f55ddaeb08563a2d9bb0bfed8d8d740037b0faa92e9ebf8fe89adc120 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:12:14,318 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:12:14,396 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:12:14,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:12:14,403 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:12:14,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:12:14,434 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:12:14,435 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:12:14,436 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:12:14,436 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:12:14,437 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:12:14,438 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:12:14,438 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:12:14,439 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:12:14,440 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:12:14,440 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:12:14,441 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:12:14,442 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:12:14,442 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:12:14,443 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:12:14,443 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:12:14,444 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:12:14,445 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:12:14,446 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:12:14,446 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:12:14,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:12:14,447 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:12:14,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:12:14,448 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:12:14,448 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:12:14,449 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:12:14,449 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:12:14,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:12:14,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:14,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:12:14,451 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:12:14,451 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:12:14,451 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:12:14,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:12:14,452 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:12:14,452 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:12:14,452 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:12:14,453 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_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0e62a2f55ddaeb08563a2d9bb0bfed8d8d740037b0faa92e9ebf8fe89adc120 [2023-11-19 05:12:14,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:12:14,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:12:14,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:12:14,752 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:12:14,753 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:12:14,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2023-11-19 05:12:18,058 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:12:18,556 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:12:18,557 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2023-11-19 05:12:18,588 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/data/c4b72783d/9e69f39d160e4dd39b555bccd0f9b6bb/FLAGdd27bdd19 [2023-11-19 05:12:18,604 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/data/c4b72783d/9e69f39d160e4dd39b555bccd0f9b6bb [2023-11-19 05:12:18,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:12:18,609 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:12:18,611 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:18,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:12:18,617 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:12:18,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:18" (1/1) ... [2023-11-19 05:12:18,619 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32427359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:18, skipping insertion in model container [2023-11-19 05:12:18,620 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:18" (1/1) ... [2023-11-19 05:12:18,708 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:12:19,086 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1764] [2023-11-19 05:12:19,087 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1765-1766] [2023-11-19 05:12:19,216 WARN L240 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_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i[52456,52469] [2023-11-19 05:12:19,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:19,636 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:12:19,717 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1764] [2023-11-19 05:12:19,717 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1765-1766] [2023-11-19 05:12:19,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [1855] [2023-11-19 05:12:19,722 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1858] [2023-11-19 05:12:19,722 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1861] [2023-11-19 05:12:19,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1864] [2023-11-19 05:12:19,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [1902] [2023-11-19 05:12:19,732 WARN L240 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_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i[52456,52469] [2023-11-19 05:12:19,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:19,821 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:12:19,822 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:12:19,830 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:12:19,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:19 WrapperNode [2023-11-19 05:12:19,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:19,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:19,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:12:19,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:12:19,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:19" (1/1) ... [2023-11-19 05:12:19,889 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:19" (1/1) ... [2023-11-19 05:12:19,968 INFO L138 Inliner]: procedures = 114, calls = 301, calls flagged for inlining = 49, calls inlined = 38, statements flattened = 909 [2023-11-19 05:12:19,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:19,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:12:19,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:12:19,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:12:19,980 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:19" (1/1) ... [2023-11-19 05:12:19,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:19" (1/1) ... [2023-11-19 05:12:19,989 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:19" (1/1) ... [2023-11-19 05:12:19,989 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:19" (1/1) ... [2023-11-19 05:12:20,020 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:19" (1/1) ... [2023-11-19 05:12:20,028 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:19" (1/1) ... [2023-11-19 05:12:20,033 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:19" (1/1) ... [2023-11-19 05:12:20,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:19" (1/1) ... [2023-11-19 05:12:20,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:12:20,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:12:20,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:12:20,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:12:20,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:19" (1/1) ... [2023-11-19 05:12:20,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:20,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:20,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:12:20,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:12:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_stop_kthread [2023-11-19 05:12:20,171 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_stop_kthread [2023-11-19 05:12:20,171 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_lock [2023-11-19 05:12:20,171 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_lock [2023-11-19 05:12:20,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:12:20,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:12:20,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:12:20,172 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_delay [2023-11-19 05:12:20,172 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_delay [2023-11-19 05:12:20,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 05:12:20,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 05:12:20,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:12:20,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:12:20,173 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_create_kthread [2023-11-19 05:12:20,174 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_create_kthread [2023-11-19 05:12:20,174 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock [2023-11-19 05:12:20,174 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock [2023-11-19 05:12:20,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 05:12:20,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 05:12:20,175 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:12:20,175 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:12:20,175 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_spin_write_unlock_irq [2023-11-19 05:12:20,176 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_spin_write_unlock_irq [2023-11-19 05:12:20,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:12:20,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 05:12:20,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 05:12:20,177 INFO L130 BoogieDeclarations]: Found specification of procedure torture_random [2023-11-19 05:12:20,177 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_random [2023-11-19 05:12:20,177 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_cleanup [2023-11-19 05:12:20,177 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_cleanup [2023-11-19 05:12:20,178 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_end [2023-11-19 05:12:20,178 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_end [2023-11-19 05:12:20,178 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:12:20,178 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:12:20,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:12:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2023-11-19 05:12:20,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2023-11-19 05:12:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:12:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 05:12:20,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 05:12:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:12:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:12:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 05:12:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_stats_print [2023-11-19 05:12:20,180 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_stats_print [2023-11-19 05:12:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:12:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-19 05:12:20,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-19 05:12:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock_irq [2023-11-19 05:12:20,181 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock_irq [2023-11-19 05:12:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:12:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:12:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_delay [2023-11-19 05:12:20,182 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_delay [2023-11-19 05:12:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:12:20,183 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:12:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 05:12:20,183 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 05:12:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_unlock [2023-11-19 05:12:20,184 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_unlock [2023-11-19 05:12:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_print_module_parms [2023-11-19 05:12:20,184 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_print_module_parms [2023-11-19 05:12:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:12:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 05:12:20,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 05:12:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_unlock [2023-11-19 05:12:20,185 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_unlock [2023-11-19 05:12:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:12:20,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:12:20,475 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:12:20,478 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:12:20,657 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:12:21,709 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:12:22,066 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:12:22,067 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:12:22,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:22 BoogieIcfgContainer [2023-11-19 05:12:22,084 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:12:22,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:12:22,089 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:12:22,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:12:22,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:12:18" (1/3) ... [2023-11-19 05:12:22,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48721e6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:22, skipping insertion in model container [2023-11-19 05:12:22,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:19" (2/3) ... [2023-11-19 05:12:22,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48721e6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:22, skipping insertion in model container [2023-11-19 05:12:22,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:22" (3/3) ... [2023-11-19 05:12:22,098 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2023-11-19 05:12:22,119 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:12:22,119 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:12:22,188 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:12:22,196 INFO L357 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, mHoare=true, 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;@321d1a0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:12:22,196 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:12:22,203 INFO L276 IsEmpty]: Start isEmpty. Operand has 288 states, 189 states have (on average 1.470899470899471) internal successors, (278), 205 states have internal predecessors, (278), 70 states have call successors, (70), 28 states have call predecessors, (70), 27 states have return successors, (65), 60 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-19 05:12:22,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 05:12:22,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:22,222 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:22,223 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:22,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:22,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1005675189, now seen corresponding path program 1 times [2023-11-19 05:12:22,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:22,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033044731] [2023-11-19 05:12:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:22,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:22,908 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 05:12:22,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:22,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033044731] [2023-11-19 05:12:22,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033044731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:22,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:22,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:22,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141983033] [2023-11-19 05:12:22,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:22,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:12:22,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:22,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:12:22,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:22,983 INFO L87 Difference]: Start difference. First operand has 288 states, 189 states have (on average 1.470899470899471) internal successors, (278), 205 states have internal predecessors, (278), 70 states have call successors, (70), 28 states have call predecessors, (70), 27 states have return successors, (65), 60 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 05:12:23,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:23,340 INFO L93 Difference]: Finished difference Result 759 states and 1096 transitions. [2023-11-19 05:12:23,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:12:23,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2023-11-19 05:12:23,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:23,378 INFO L225 Difference]: With dead ends: 759 [2023-11-19 05:12:23,379 INFO L226 Difference]: Without dead ends: 433 [2023-11-19 05:12:23,393 INFO L412 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 [2023-11-19 05:12:23,405 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 379 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:23,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 638 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:12:23,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2023-11-19 05:12:23,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 430. [2023-11-19 05:12:23,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 293 states have (on average 1.4334470989761092) internal successors, (420), 304 states have internal predecessors, (420), 95 states have call successors, (95), 46 states have call predecessors, (95), 41 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-19 05:12:23,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 605 transitions. [2023-11-19 05:12:23,569 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 605 transitions. Word has length 41 [2023-11-19 05:12:23,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:23,570 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 605 transitions. [2023-11-19 05:12:23,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 05:12:23,573 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 605 transitions. [2023-11-19 05:12:23,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 05:12:23,589 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:23,590 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:23,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:12:23,594 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:23,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:23,595 INFO L85 PathProgramCache]: Analyzing trace with hash 55423021, now seen corresponding path program 1 times [2023-11-19 05:12:23,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:23,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468855516] [2023-11-19 05:12:23,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:23,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:24,245 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 05:12:24,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:24,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468855516] [2023-11-19 05:12:24,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468855516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:24,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:24,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:12:24,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409976163] [2023-11-19 05:12:24,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:24,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:12:24,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:24,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:12:24,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:24,250 INFO L87 Difference]: Start difference. First operand 430 states and 605 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 05:12:24,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:24,548 INFO L93 Difference]: Finished difference Result 813 states and 1173 transitions. [2023-11-19 05:12:24,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:12:24,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 48 [2023-11-19 05:12:24,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:24,565 INFO L225 Difference]: With dead ends: 813 [2023-11-19 05:12:24,565 INFO L226 Difference]: Without dead ends: 789 [2023-11-19 05:12:24,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:12:24,573 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 360 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:24,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1034 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:12:24,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2023-11-19 05:12:24,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 755. [2023-11-19 05:12:24,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 532 states have (on average 1.468045112781955) internal successors, (781), 552 states have internal predecessors, (781), 156 states have call successors, (156), 71 states have call predecessors, (156), 66 states have return successors, (152), 143 states have call predecessors, (152), 151 states have call successors, (152) [2023-11-19 05:12:24,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1089 transitions. [2023-11-19 05:12:24,682 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1089 transitions. Word has length 48 [2023-11-19 05:12:24,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:24,684 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 1089 transitions. [2023-11-19 05:12:24,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 05:12:24,684 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1089 transitions. [2023-11-19 05:12:24,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 05:12:24,694 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:24,695 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:24,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:12:24,695 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:24,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:24,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1755180178, now seen corresponding path program 1 times [2023-11-19 05:12:24,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:24,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692486275] [2023-11-19 05:12:24,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:24,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:24,859 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 05:12:24,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:24,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692486275] [2023-11-19 05:12:24,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692486275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:24,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:24,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:24,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094745650] [2023-11-19 05:12:24,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:24,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:12:24,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:24,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:12:24,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:24,864 INFO L87 Difference]: Start difference. First operand 755 states and 1089 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 05:12:25,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:25,166 INFO L93 Difference]: Finished difference Result 1931 states and 2764 transitions. [2023-11-19 05:12:25,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:12:25,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 61 [2023-11-19 05:12:25,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:25,179 INFO L225 Difference]: With dead ends: 1931 [2023-11-19 05:12:25,179 INFO L226 Difference]: Without dead ends: 1191 [2023-11-19 05:12:25,182 INFO L412 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 [2023-11-19 05:12:25,188 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 348 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:25,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 686 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:12:25,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2023-11-19 05:12:25,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1159. [2023-11-19 05:12:25,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 799 states have (on average 1.4568210262828536) internal successors, (1164), 841 states have internal predecessors, (1164), 247 states have call successors, (247), 117 states have call predecessors, (247), 112 states have return successors, (244), 220 states have call predecessors, (244), 242 states have call successors, (244) [2023-11-19 05:12:25,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1655 transitions. [2023-11-19 05:12:25,319 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1655 transitions. Word has length 61 [2023-11-19 05:12:25,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:25,320 INFO L495 AbstractCegarLoop]: Abstraction has 1159 states and 1655 transitions. [2023-11-19 05:12:25,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 05:12:25,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1655 transitions. [2023-11-19 05:12:25,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 05:12:25,327 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:25,328 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:25,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:12:25,328 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:25,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:25,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1725165258, now seen corresponding path program 1 times [2023-11-19 05:12:25,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:25,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767296713] [2023-11-19 05:12:25,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:25,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:25,568 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 05:12:25,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:25,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767296713] [2023-11-19 05:12:25,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767296713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:25,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:25,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:25,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177294667] [2023-11-19 05:12:25,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:25,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:12:25,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:25,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:12:25,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:25,573 INFO L87 Difference]: Start difference. First operand 1159 states and 1655 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 05:12:25,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:25,928 INFO L93 Difference]: Finished difference Result 3039 states and 4324 transitions. [2023-11-19 05:12:25,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:12:25,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2023-11-19 05:12:25,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:25,946 INFO L225 Difference]: With dead ends: 3039 [2023-11-19 05:12:25,946 INFO L226 Difference]: Without dead ends: 1895 [2023-11-19 05:12:25,951 INFO L412 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 [2023-11-19 05:12:25,953 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 345 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:25,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 737 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:12:25,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1895 states. [2023-11-19 05:12:26,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 1335. [2023-11-19 05:12:26,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 935 states have (on average 1.4620320855614972) internal successors, (1367), 980 states have internal predecessors, (1367), 269 states have call successors, (269), 135 states have call predecessors, (269), 130 states have return successors, (266), 242 states have call predecessors, (266), 264 states have call successors, (266) [2023-11-19 05:12:26,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1902 transitions. [2023-11-19 05:12:26,108 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1902 transitions. Word has length 64 [2023-11-19 05:12:26,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:26,108 INFO L495 AbstractCegarLoop]: Abstraction has 1335 states and 1902 transitions. [2023-11-19 05:12:26,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 05:12:26,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1902 transitions. [2023-11-19 05:12:26,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 05:12:26,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:26,121 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-19 05:12:26,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:12:26,122 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:26,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:26,124 INFO L85 PathProgramCache]: Analyzing trace with hash -166041364, now seen corresponding path program 1 times [2023-11-19 05:12:26,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:26,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045241567] [2023-11-19 05:12:26,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:26,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:26,353 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 05:12:26,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:26,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045241567] [2023-11-19 05:12:26,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045241567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:26,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:26,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:12:26,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796619594] [2023-11-19 05:12:26,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:26,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:12:26,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:26,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:12:26,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:26,359 INFO L87 Difference]: Start difference. First operand 1335 states and 1902 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 05:12:26,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:26,654 INFO L93 Difference]: Finished difference Result 2605 states and 3714 transitions. [2023-11-19 05:12:26,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:12:26,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2023-11-19 05:12:26,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:26,666 INFO L225 Difference]: With dead ends: 2605 [2023-11-19 05:12:26,666 INFO L226 Difference]: Without dead ends: 1293 [2023-11-19 05:12:26,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:12:26,672 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 1 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:26,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1054 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:12:26,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2023-11-19 05:12:26,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1293. [2023-11-19 05:12:26,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 913 states have (on average 1.4600219058050383) internal successors, (1333), 956 states have internal predecessors, (1333), 249 states have call successors, (249), 135 states have call predecessors, (249), 130 states have return successors, (246), 224 states have call predecessors, (246), 244 states have call successors, (246) [2023-11-19 05:12:26,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1828 transitions. [2023-11-19 05:12:26,788 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1828 transitions. Word has length 64 [2023-11-19 05:12:26,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:26,789 INFO L495 AbstractCegarLoop]: Abstraction has 1293 states and 1828 transitions. [2023-11-19 05:12:26,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 05:12:26,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1828 transitions. [2023-11-19 05:12:26,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 05:12:26,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:26,795 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:26,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:12:26,796 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:26,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:26,796 INFO L85 PathProgramCache]: Analyzing trace with hash 821748395, now seen corresponding path program 1 times [2023-11-19 05:12:26,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:26,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048583412] [2023-11-19 05:12:26,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:26,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:27,120 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 05:12:27,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:27,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048583412] [2023-11-19 05:12:27,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048583412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:27,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:27,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:12:27,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618917607] [2023-11-19 05:12:27,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:27,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:12:27,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:27,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:12:27,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:27,126 INFO L87 Difference]: Start difference. First operand 1293 states and 1828 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:12:27,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:27,561 INFO L93 Difference]: Finished difference Result 3163 states and 4481 transitions. [2023-11-19 05:12:27,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:12:27,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2023-11-19 05:12:27,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:27,581 INFO L225 Difference]: With dead ends: 3163 [2023-11-19 05:12:27,581 INFO L226 Difference]: Without dead ends: 1939 [2023-11-19 05:12:27,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:27,588 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 331 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:27,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1183 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:12:27,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2023-11-19 05:12:27,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1661. [2023-11-19 05:12:27,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1199 states have (on average 1.46371976647206) internal successors, (1755), 1250 states have internal predecessors, (1755), 300 states have call successors, (300), 166 states have call predecessors, (300), 161 states have return successors, (297), 275 states have call predecessors, (297), 295 states have call successors, (297) [2023-11-19 05:12:27,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2352 transitions. [2023-11-19 05:12:27,749 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2352 transitions. Word has length 104 [2023-11-19 05:12:27,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:27,750 INFO L495 AbstractCegarLoop]: Abstraction has 1661 states and 2352 transitions. [2023-11-19 05:12:27,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:12:27,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2352 transitions. [2023-11-19 05:12:27,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-19 05:12:27,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:27,762 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:27,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 05:12:27,762 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:27,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:27,763 INFO L85 PathProgramCache]: Analyzing trace with hash 266729517, now seen corresponding path program 1 times [2023-11-19 05:12:27,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:27,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169278187] [2023-11-19 05:12:27,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:27,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:28,073 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 05:12:28,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:28,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169278187] [2023-11-19 05:12:28,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169278187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:28,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:28,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:12:28,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245743924] [2023-11-19 05:12:28,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:28,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:12:28,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:28,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:12:28,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:28,078 INFO L87 Difference]: Start difference. First operand 1661 states and 2352 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:12:28,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:28,537 INFO L93 Difference]: Finished difference Result 4086 states and 5801 transitions. [2023-11-19 05:12:28,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:12:28,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 107 [2023-11-19 05:12:28,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:28,560 INFO L225 Difference]: With dead ends: 4086 [2023-11-19 05:12:28,560 INFO L226 Difference]: Without dead ends: 2494 [2023-11-19 05:12:28,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:28,568 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 328 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:28,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 1178 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:12:28,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2023-11-19 05:12:28,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2215. [2023-11-19 05:12:28,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 1634 states have (on average 1.4645042839657283) internal successors, (2393), 1697 states have internal predecessors, (2393), 373 states have call successors, (373), 212 states have call predecessors, (373), 207 states have return successors, (370), 348 states have call predecessors, (370), 368 states have call successors, (370) [2023-11-19 05:12:28,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 3136 transitions. [2023-11-19 05:12:28,757 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 3136 transitions. Word has length 107 [2023-11-19 05:12:28,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:28,758 INFO L495 AbstractCegarLoop]: Abstraction has 2215 states and 3136 transitions. [2023-11-19 05:12:28,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:12:28,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 3136 transitions. [2023-11-19 05:12:28,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-19 05:12:28,765 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:28,765 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:28,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 05:12:28,768 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:28,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:28,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1481158662, now seen corresponding path program 1 times [2023-11-19 05:12:28,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:28,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040271712] [2023-11-19 05:12:28,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:28,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:29,337 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 05:12:29,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:29,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040271712] [2023-11-19 05:12:29,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040271712] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:12:29,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335841] [2023-11-19 05:12:29,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:29,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:29,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:29,343 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:12:29,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:12:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:29,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:12:29,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:29,829 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 05:12:29,830 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:12:29,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:29,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:12:29,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2023-11-19 05:12:29,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717147826] [2023-11-19 05:12:29,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:29,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:12:29,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:29,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:12:29,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:12:29,833 INFO L87 Difference]: Start difference. First operand 2215 states and 3136 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 05:12:30,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:30,199 INFO L93 Difference]: Finished difference Result 4375 states and 6200 transitions. [2023-11-19 05:12:30,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:12:30,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2023-11-19 05:12:30,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:30,218 INFO L225 Difference]: With dead ends: 4375 [2023-11-19 05:12:30,218 INFO L226 Difference]: Without dead ends: 2203 [2023-11-19 05:12:30,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-19 05:12:30,227 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 2 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:30,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1318 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:12:30,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2203 states. [2023-11-19 05:12:30,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2203 to 2203. [2023-11-19 05:12:30,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2203 states, 1622 states have (on average 1.4630086313193589) internal successors, (2373), 1687 states have internal predecessors, (2373), 373 states have call successors, (373), 212 states have call predecessors, (373), 207 states have return successors, (368), 346 states have call predecessors, (368), 366 states have call successors, (368) [2023-11-19 05:12:30,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2203 states to 2203 states and 3114 transitions. [2023-11-19 05:12:30,431 INFO L78 Accepts]: Start accepts. Automaton has 2203 states and 3114 transitions. Word has length 112 [2023-11-19 05:12:30,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:30,433 INFO L495 AbstractCegarLoop]: Abstraction has 2203 states and 3114 transitions. [2023-11-19 05:12:30,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 05:12:30,434 INFO L276 IsEmpty]: Start isEmpty. Operand 2203 states and 3114 transitions. [2023-11-19 05:12:30,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 05:12:30,441 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:30,441 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:30,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:12:30,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 05:12:30,656 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:30,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:30,657 INFO L85 PathProgramCache]: Analyzing trace with hash 517665351, now seen corresponding path program 1 times [2023-11-19 05:12:30,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:30,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482448930] [2023-11-19 05:12:30,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:30,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:30,863 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 05:12:30,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:30,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482448930] [2023-11-19 05:12:30,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482448930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:30,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:30,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:30,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234863536] [2023-11-19 05:12:30,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:30,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:12:30,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:30,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:12:30,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:30,870 INFO L87 Difference]: Start difference. First operand 2203 states and 3114 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 05:12:31,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:31,077 INFO L93 Difference]: Finished difference Result 4333 states and 6126 transitions. [2023-11-19 05:12:31,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:12:31,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2023-11-19 05:12:31,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:31,094 INFO L225 Difference]: With dead ends: 4333 [2023-11-19 05:12:31,095 INFO L226 Difference]: Without dead ends: 2199 [2023-11-19 05:12:31,101 INFO L412 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 [2023-11-19 05:12:31,103 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 349 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:31,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 332 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:12:31,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2199 states. [2023-11-19 05:12:31,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2199 to 2199. [2023-11-19 05:12:31,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2199 states, 1618 states have (on average 1.4592088998763906) internal successors, (2361), 1683 states have internal predecessors, (2361), 373 states have call successors, (373), 212 states have call predecessors, (373), 207 states have return successors, (368), 346 states have call predecessors, (368), 366 states have call successors, (368) [2023-11-19 05:12:31,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2199 states to 2199 states and 3102 transitions. [2023-11-19 05:12:31,311 INFO L78 Accepts]: Start accepts. Automaton has 2199 states and 3102 transitions. Word has length 113 [2023-11-19 05:12:31,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:31,312 INFO L495 AbstractCegarLoop]: Abstraction has 2199 states and 3102 transitions. [2023-11-19 05:12:31,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 05:12:31,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2199 states and 3102 transitions. [2023-11-19 05:12:31,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-19 05:12:31,319 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:31,319 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:31,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 05:12:31,320 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:31,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:31,321 INFO L85 PathProgramCache]: Analyzing trace with hash 823933927, now seen corresponding path program 1 times [2023-11-19 05:12:31,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:31,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193941991] [2023-11-19 05:12:31,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:31,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:31,784 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 05:12:31,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:31,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193941991] [2023-11-19 05:12:31,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193941991] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:12:31,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370228986] [2023-11-19 05:12:31,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:31,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:31,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:31,788 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:12:31,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 05:12:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:32,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:12:32,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:32,360 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 05:12:32,361 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:12:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 05:12:32,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370228986] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 05:12:32,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 05:12:32,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2023-11-19 05:12:32,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046667093] [2023-11-19 05:12:32,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:32,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:12:32,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:32,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:12:32,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:12:32,684 INFO L87 Difference]: Start difference. First operand 2199 states and 3102 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-19 05:12:34,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:34,272 INFO L93 Difference]: Finished difference Result 7788 states and 11021 transitions. [2023-11-19 05:12:34,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:12:34,273 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 114 [2023-11-19 05:12:34,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:34,331 INFO L225 Difference]: With dead ends: 7788 [2023-11-19 05:12:34,332 INFO L226 Difference]: Without dead ends: 7764 [2023-11-19 05:12:34,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 220 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2023-11-19 05:12:34,337 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 1346 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:34,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 1552 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 05:12:34,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7764 states. [2023-11-19 05:12:34,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7764 to 7245. [2023-11-19 05:12:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7245 states, 5430 states have (on average 1.4718232044198896) internal successors, (7992), 5627 states have internal predecessors, (7992), 1156 states have call successors, (1156), 663 states have call predecessors, (1156), 658 states have return successors, (1151), 1098 states have call predecessors, (1151), 1146 states have call successors, (1151) [2023-11-19 05:12:35,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7245 states to 7245 states and 10299 transitions. [2023-11-19 05:12:35,019 INFO L78 Accepts]: Start accepts. Automaton has 7245 states and 10299 transitions. Word has length 114 [2023-11-19 05:12:35,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:35,020 INFO L495 AbstractCegarLoop]: Abstraction has 7245 states and 10299 transitions. [2023-11-19 05:12:35,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-19 05:12:35,020 INFO L276 IsEmpty]: Start isEmpty. Operand 7245 states and 10299 transitions. [2023-11-19 05:12:35,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-19 05:12:35,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:35,041 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:35,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 05:12:35,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 05:12:35,267 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:35,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:35,268 INFO L85 PathProgramCache]: Analyzing trace with hash -2071352815, now seen corresponding path program 1 times [2023-11-19 05:12:35,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:35,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168927185] [2023-11-19 05:12:35,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:35,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:35,581 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 05:12:35,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:35,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168927185] [2023-11-19 05:12:35,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168927185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:35,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:35,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:12:35,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210089993] [2023-11-19 05:12:35,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:35,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:12:35,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:35,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:12:35,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:35,585 INFO L87 Difference]: Start difference. First operand 7245 states and 10299 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 05:12:36,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:36,225 INFO L93 Difference]: Finished difference Result 13409 states and 19126 transitions. [2023-11-19 05:12:36,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:12:36,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 121 [2023-11-19 05:12:36,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:36,274 INFO L225 Difference]: With dead ends: 13409 [2023-11-19 05:12:36,274 INFO L226 Difference]: Without dead ends: 6119 [2023-11-19 05:12:36,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:36,297 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 195 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:36,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 844 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:12:36,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6119 states. [2023-11-19 05:12:36,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6119 to 5721. [2023-11-19 05:12:36,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5721 states, 4395 states have (on average 1.4559726962457338) internal successors, (6399), 4521 states have internal predecessors, (6399), 838 states have call successors, (838), 492 states have call predecessors, (838), 487 states have return successors, (833), 823 states have call predecessors, (833), 833 states have call successors, (833) [2023-11-19 05:12:36,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5721 states to 5721 states and 8070 transitions. [2023-11-19 05:12:36,844 INFO L78 Accepts]: Start accepts. Automaton has 5721 states and 8070 transitions. Word has length 121 [2023-11-19 05:12:36,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:36,845 INFO L495 AbstractCegarLoop]: Abstraction has 5721 states and 8070 transitions. [2023-11-19 05:12:36,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 05:12:36,846 INFO L276 IsEmpty]: Start isEmpty. Operand 5721 states and 8070 transitions. [2023-11-19 05:12:36,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-19 05:12:36,862 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:36,863 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:36,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 05:12:36,863 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:36,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:36,864 INFO L85 PathProgramCache]: Analyzing trace with hash -966441505, now seen corresponding path program 1 times [2023-11-19 05:12:36,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:36,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794815505] [2023-11-19 05:12:36,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:36,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:37,331 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 05:12:37,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:37,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794815505] [2023-11-19 05:12:37,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794815505] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:12:37,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720163686] [2023-11-19 05:12:37,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:37,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:37,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:37,335 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:12:37,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 05:12:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:37,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 965 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:12:37,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:37,985 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 05:12:37,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:12:38,448 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 05:12:38,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720163686] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 05:12:38,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 05:12:38,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2023-11-19 05:12:38,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893747293] [2023-11-19 05:12:38,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:38,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:12:38,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:38,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:12:38,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:12:38,453 INFO L87 Difference]: Start difference. First operand 5721 states and 8070 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-19 05:12:40,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:40,541 INFO L93 Difference]: Finished difference Result 19683 states and 27905 transitions. [2023-11-19 05:12:40,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:12:40,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 120 [2023-11-19 05:12:40,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:40,673 INFO L225 Difference]: With dead ends: 19683 [2023-11-19 05:12:40,674 INFO L226 Difference]: Without dead ends: 19659 [2023-11-19 05:12:40,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 232 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2023-11-19 05:12:40,685 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 673 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:40,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1492 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 05:12:40,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19659 states. [2023-11-19 05:12:41,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19659 to 17101. [2023-11-19 05:12:42,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17101 states, 13303 states have (on average 1.4670375103360145) internal successors, (19516), 13657 states have internal predecessors, (19516), 2394 states have call successors, (2394), 1408 states have call predecessors, (2394), 1403 states have return successors, (2389), 2379 states have call predecessors, (2389), 2389 states have call successors, (2389) [2023-11-19 05:12:42,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17101 states to 17101 states and 24299 transitions. [2023-11-19 05:12:42,097 INFO L78 Accepts]: Start accepts. Automaton has 17101 states and 24299 transitions. Word has length 120 [2023-11-19 05:12:42,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:42,098 INFO L495 AbstractCegarLoop]: Abstraction has 17101 states and 24299 transitions. [2023-11-19 05:12:42,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-19 05:12:42,099 INFO L276 IsEmpty]: Start isEmpty. Operand 17101 states and 24299 transitions. [2023-11-19 05:12:42,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-19 05:12:42,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:42,136 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:42,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:12:42,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:42,352 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:42,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:42,353 INFO L85 PathProgramCache]: Analyzing trace with hash 2004230453, now seen corresponding path program 1 times [2023-11-19 05:12:42,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:42,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186595972] [2023-11-19 05:12:42,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:42,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:42,724 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-19 05:12:42,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:42,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186595972] [2023-11-19 05:12:42,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186595972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:42,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:42,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:42,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076231232] [2023-11-19 05:12:42,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:42,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:12:42,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:42,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:12:42,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:42,728 INFO L87 Difference]: Start difference. First operand 17101 states and 24299 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:12:43,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:43,931 INFO L93 Difference]: Finished difference Result 34149 states and 48540 transitions. [2023-11-19 05:12:43,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:12:43,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2023-11-19 05:12:43,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:44,164 INFO L225 Difference]: With dead ends: 34149 [2023-11-19 05:12:44,164 INFO L226 Difference]: Without dead ends: 17177 [2023-11-19 05:12:44,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:44,213 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 36 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:44,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 622 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:12:44,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17177 states. [2023-11-19 05:12:45,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17177 to 17103. [2023-11-19 05:12:45,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17103 states, 13305 states have (on average 1.466967305524239) internal successors, (19518), 13659 states have internal predecessors, (19518), 2394 states have call successors, (2394), 1408 states have call predecessors, (2394), 1403 states have return successors, (2389), 2379 states have call predecessors, (2389), 2389 states have call successors, (2389) [2023-11-19 05:12:45,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17103 states to 17103 states and 24301 transitions. [2023-11-19 05:12:45,673 INFO L78 Accepts]: Start accepts. Automaton has 17103 states and 24301 transitions. Word has length 121 [2023-11-19 05:12:45,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:45,674 INFO L495 AbstractCegarLoop]: Abstraction has 17103 states and 24301 transitions. [2023-11-19 05:12:45,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:12:45,674 INFO L276 IsEmpty]: Start isEmpty. Operand 17103 states and 24301 transitions. [2023-11-19 05:12:45,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-19 05:12:45,709 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:45,709 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:45,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 05:12:45,710 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:45,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:45,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1054953445, now seen corresponding path program 1 times [2023-11-19 05:12:45,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:45,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564996412] [2023-11-19 05:12:45,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:45,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:46,373 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-19 05:12:46,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:46,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564996412] [2023-11-19 05:12:46,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564996412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:46,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:46,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:12:46,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703439231] [2023-11-19 05:12:46,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:46,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:12:46,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:46,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:12:46,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:12:46,376 INFO L87 Difference]: Start difference. First operand 17103 states and 24301 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:12:46,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:46,693 INFO L93 Difference]: Finished difference Result 17219 states and 24443 transitions. [2023-11-19 05:12:46,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:12:46,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2023-11-19 05:12:46,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:46,695 INFO L225 Difference]: With dead ends: 17219 [2023-11-19 05:12:46,695 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 05:12:46,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:12:46,739 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 203 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:46,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 536 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:12:46,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 05:12:46,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 05:12:46,742 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) [2023-11-19 05:12:46,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 05:12:46,745 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 122 [2023-11-19 05:12:46,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:46,746 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 05:12:46,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:12:46,746 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 05:12:46,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 05:12:46,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:12:46,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 05:12:46,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 05:12:49,324 INFO L899 garLoopResultBuilder]: For program point _torture_stop_kthreadEXIT(lines 2972 2974) no Hoare annotation was computed. [2023-11-19 05:12:49,325 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2972 2974) the Hoare annotation is: true [2023-11-19 05:12:49,325 INFO L899 garLoopResultBuilder]: For program point kfreeEXIT(lines 3078 3080) no Hoare annotation was computed. [2023-11-19 05:12:49,325 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3078 3080) the Hoare annotation is: true [2023-11-19 05:12:49,325 INFO L899 garLoopResultBuilder]: For program point torture_lock_busted_write_delayEXIT(lines 2087 2112) no Hoare annotation was computed. [2023-11-19 05:12:49,326 INFO L902 garLoopResultBuilder]: At program point ldv_22671(lines 2096 2108) the Hoare annotation is: true [2023-11-19 05:12:49,326 INFO L899 garLoopResultBuilder]: For program point L2104(lines 2104 2107) no Hoare annotation was computed. [2023-11-19 05:12:49,326 INFO L899 garLoopResultBuilder]: For program point L2100(lines 2096 2108) no Hoare annotation was computed. [2023-11-19 05:12:49,326 INFO L899 garLoopResultBuilder]: For program point L2096(lines 2096 2109) no Hoare annotation was computed. [2023-11-19 05:12:49,326 INFO L899 garLoopResultBuilder]: For program point L2095-1(line 2095) no Hoare annotation was computed. [2023-11-19 05:12:49,326 INFO L899 garLoopResultBuilder]: For program point L2096-2(lines 2087 2112) no Hoare annotation was computed. [2023-11-19 05:12:49,327 INFO L902 garLoopResultBuilder]: At program point L2095(line 2095) the Hoare annotation is: true [2023-11-19 05:12:49,327 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2087 2112) the Hoare annotation is: true [2023-11-19 05:12:49,327 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3012 3014) the Hoare annotation is: true [2023-11-19 05:12:49,327 INFO L899 garLoopResultBuilder]: For program point printkEXIT(lines 3012 3014) no Hoare annotation was computed. [2023-11-19 05:12:49,327 INFO L899 garLoopResultBuilder]: For program point L2865-1(line 2865) no Hoare annotation was computed. [2023-11-19 05:12:49,327 INFO L899 garLoopResultBuilder]: For program point torture_lock_spin_write_unlock_irqEXIT(lines 2182 2188) no Hoare annotation was computed. [2023-11-19 05:12:49,328 INFO L902 garLoopResultBuilder]: At program point L2865(line 2865) the Hoare annotation is: true [2023-11-19 05:12:49,328 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2182 2188) the Hoare annotation is: true [2023-11-19 05:12:49,328 INFO L899 garLoopResultBuilder]: For program point __const_udelayEXIT(lines 2953 2955) no Hoare annotation was computed. [2023-11-19 05:12:49,328 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2953 2955) the Hoare annotation is: true [2023-11-19 05:12:49,328 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 2009 2015) the Hoare annotation is: true [2023-11-19 05:12:49,329 INFO L899 garLoopResultBuilder]: For program point ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2013) no Hoare annotation was computed. [2023-11-19 05:12:49,329 INFO L899 garLoopResultBuilder]: For program point ldv_errorEXIT(lines 2009 2015) no Hoare annotation was computed. [2023-11-19 05:12:49,330 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2081 2086) the Hoare annotation is: true [2023-11-19 05:12:49,330 INFO L899 garLoopResultBuilder]: For program point torture_lock_busted_write_lockEXIT(lines 2081 2086) no Hoare annotation was computed. [2023-11-19 05:12:49,330 INFO L902 garLoopResultBuilder]: At program point L1937(line 1937) the Hoare annotation is: true [2023-11-19 05:12:49,330 INFO L899 garLoopResultBuilder]: For program point L1937-1(line 1937) no Hoare annotation was computed. [2023-11-19 05:12:49,331 INFO L902 garLoopResultBuilder]: At program point L2874(line 2874) the Hoare annotation is: true [2023-11-19 05:12:49,331 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2871 2878) the Hoare annotation is: true [2023-11-19 05:12:49,331 INFO L899 garLoopResultBuilder]: For program point L2874-1(line 2874) no Hoare annotation was computed. [2023-11-19 05:12:49,331 INFO L899 garLoopResultBuilder]: For program point kmallocEXIT(lines 2871 2878) no Hoare annotation was computed. [2023-11-19 05:12:49,331 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3056 3058) the Hoare annotation is: true [2023-11-19 05:12:49,331 INFO L899 garLoopResultBuilder]: For program point torture_randomEXIT(lines 3056 3058) no Hoare annotation was computed. [2023-11-19 05:12:49,332 INFO L902 garLoopResultBuilder]: At program point LDV_STOP(lines 2016 2022) the Hoare annotation is: true [2023-11-19 05:12:49,332 INFO L899 garLoopResultBuilder]: For program point ldv_stopEXIT(lines 2016 2022) no Hoare annotation was computed. [2023-11-19 05:12:49,332 INFO L899 garLoopResultBuilder]: For program point lock_torture_stats_printFINAL(lines 2314 2333) no Hoare annotation was computed. [2023-11-19 05:12:49,332 INFO L899 garLoopResultBuilder]: For program point L2329-1(line 2329) no Hoare annotation was computed. [2023-11-19 05:12:49,332 INFO L902 garLoopResultBuilder]: At program point L2329(line 2329) the Hoare annotation is: true [2023-11-19 05:12:49,332 INFO L899 garLoopResultBuilder]: For program point L2323(lines 2323 2327) no Hoare annotation was computed. [2023-11-19 05:12:49,333 INFO L899 garLoopResultBuilder]: For program point L2321-1(line 2321) no Hoare annotation was computed. [2023-11-19 05:12:49,333 INFO L902 garLoopResultBuilder]: At program point L2321(line 2321) the Hoare annotation is: true [2023-11-19 05:12:49,333 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2314 2333) the Hoare annotation is: true [2023-11-19 05:12:49,335 INFO L899 garLoopResultBuilder]: For program point $Ultimate##13(lines 2297 2300) no Hoare annotation was computed. [2023-11-19 05:12:49,335 INFO L899 garLoopResultBuilder]: For program point lock_torture_stats_printEXIT(lines 2314 2333) no Hoare annotation was computed. [2023-11-19 05:12:49,335 INFO L902 garLoopResultBuilder]: At program point L2330(line 2330) the Hoare annotation is: true [2023-11-19 05:12:49,336 INFO L902 garLoopResultBuilder]: At program point L2324(line 2324) the Hoare annotation is: true [2023-11-19 05:12:49,336 INFO L899 garLoopResultBuilder]: For program point L2324-1(line 2324) no Hoare annotation was computed. [2023-11-19 05:12:49,336 INFO L902 garLoopResultBuilder]: At program point torture_lock_busted_write_unlockFINAL(lines 2113 2118) the Hoare annotation is: true [2023-11-19 05:12:49,336 INFO L899 garLoopResultBuilder]: For program point torture_lock_busted_write_unlockEXIT(lines 2113 2118) no Hoare annotation was computed. [2023-11-19 05:12:49,336 INFO L899 garLoopResultBuilder]: For program point lock_torture_print_module_parmsEXIT(lines 2361 2370) no Hoare annotation was computed. [2023-11-19 05:12:49,337 INFO L899 garLoopResultBuilder]: For program point L2365-1(lines 2365 2367) no Hoare annotation was computed. [2023-11-19 05:12:49,337 INFO L902 garLoopResultBuilder]: At program point L2365(lines 2365 2367) the Hoare annotation is: true [2023-11-19 05:12:49,337 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2361 2370) the Hoare annotation is: true [2023-11-19 05:12:49,337 INFO L899 garLoopResultBuilder]: For program point L2141-1(line 2141) no Hoare annotation was computed. [2023-11-19 05:12:49,337 INFO L902 garLoopResultBuilder]: At program point L2141(line 2141) the Hoare annotation is: true [2023-11-19 05:12:49,337 INFO L899 garLoopResultBuilder]: For program point torture_spin_lock_write_delayEXIT(lines 2130 2163) no Hoare annotation was computed. [2023-11-19 05:12:49,338 INFO L899 garLoopResultBuilder]: For program point L2156(line 2156) no Hoare annotation was computed. [2023-11-19 05:12:49,338 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2130 2163) the Hoare annotation is: true [2023-11-19 05:12:49,338 INFO L899 garLoopResultBuilder]: For program point L2150(lines 2150 2153) no Hoare annotation was computed. [2023-11-19 05:12:49,338 INFO L899 garLoopResultBuilder]: For program point L2146(lines 2142 2154) no Hoare annotation was computed. [2023-11-19 05:12:49,338 INFO L899 garLoopResultBuilder]: For program point L2142(lines 2142 2155) no Hoare annotation was computed. [2023-11-19 05:12:49,339 INFO L902 garLoopResultBuilder]: At program point L2142-2(lines 2142 2155) the Hoare annotation is: true [2023-11-19 05:12:49,339 INFO L902 garLoopResultBuilder]: At program point ldv_22689(lines 2142 2154) the Hoare annotation is: true [2023-11-19 05:12:49,340 INFO L899 garLoopResultBuilder]: For program point L2401(lines 2401 2410) no Hoare annotation was computed. [2023-11-19 05:12:49,340 INFO L899 garLoopResultBuilder]: For program point L2399(line 2399) no Hoare annotation was computed. [2023-11-19 05:12:49,340 INFO L899 garLoopResultBuilder]: For program point L2387(line 2387) no Hoare annotation was computed. [2023-11-19 05:12:49,340 INFO L899 garLoopResultBuilder]: For program point L2383(lines 2383 2397) no Hoare annotation was computed. [2023-11-19 05:12:49,341 INFO L902 garLoopResultBuilder]: At program point L2383-2(lines 2383 2397) the Hoare annotation is: true [2023-11-19 05:12:49,341 INFO L899 garLoopResultBuilder]: For program point L2379(lines 2379 2382) no Hoare annotation was computed. [2023-11-19 05:12:49,341 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2371 2413) the Hoare annotation is: true [2023-11-19 05:12:49,341 INFO L902 garLoopResultBuilder]: At program point L2408(line 2408) the Hoare annotation is: true [2023-11-19 05:12:49,341 INFO L902 garLoopResultBuilder]: At program point L2406(line 2406) the Hoare annotation is: true [2023-11-19 05:12:49,341 INFO L899 garLoopResultBuilder]: For program point lock_torture_cleanupEXIT(lines 2371 2413) no Hoare annotation was computed. [2023-11-19 05:12:49,342 INFO L899 garLoopResultBuilder]: For program point L2408-1(lines 2371 2413) no Hoare annotation was computed. [2023-11-19 05:12:49,342 INFO L902 garLoopResultBuilder]: At program point L2402(line 2402) the Hoare annotation is: true [2023-11-19 05:12:49,342 INFO L899 garLoopResultBuilder]: For program point $Ultimate##6(lines 2390 2393) no Hoare annotation was computed. [2023-11-19 05:12:49,342 INFO L902 garLoopResultBuilder]: At program point L2398(line 2398) the Hoare annotation is: true [2023-11-19 05:12:49,343 INFO L902 garLoopResultBuilder]: At program point L2394(line 2394) the Hoare annotation is: true [2023-11-19 05:12:49,343 INFO L899 garLoopResultBuilder]: For program point L2394-1(line 2394) no Hoare annotation was computed. [2023-11-19 05:12:49,343 INFO L899 garLoopResultBuilder]: For program point L2405(lines 2405 2409) no Hoare annotation was computed. [2023-11-19 05:12:49,344 INFO L902 garLoopResultBuilder]: At program point ldv_22745(lines 2383 2396) the Hoare annotation is: true [2023-11-19 05:12:49,344 INFO L902 garLoopResultBuilder]: At program point torture_init_endFINAL(lines 3037 3039) the Hoare annotation is: true [2023-11-19 05:12:49,344 INFO L899 garLoopResultBuilder]: For program point torture_init_endEXIT(lines 3037 3039) no Hoare annotation was computed. [2023-11-19 05:12:49,344 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1956 1958) the Hoare annotation is: true [2023-11-19 05:12:49,345 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 1956 1958) no Hoare annotation was computed. [2023-11-19 05:12:49,345 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2929 2935) the Hoare annotation is: true [2023-11-19 05:12:49,345 INFO L899 garLoopResultBuilder]: For program point ldv_spin_unlockEXIT(lines 2929 2935) no Hoare annotation was computed. [2023-11-19 05:12:49,345 INFO L899 garLoopResultBuilder]: For program point ldv_spin_lockEXIT(lines 2922 2928) no Hoare annotation was computed. [2023-11-19 05:12:49,345 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2922 2928) the Hoare annotation is: true [2023-11-19 05:12:49,345 INFO L899 garLoopResultBuilder]: For program point L2177-1(line 2177) no Hoare annotation was computed. [2023-11-19 05:12:49,346 INFO L902 garLoopResultBuilder]: At program point L2177(line 2177) the Hoare annotation is: true [2023-11-19 05:12:49,346 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2173 2181) the Hoare annotation is: true [2023-11-19 05:12:49,346 INFO L899 garLoopResultBuilder]: For program point torture_spin_lock_write_lock_irqEXIT(lines 2173 2181) no Hoare annotation was computed. [2023-11-19 05:12:49,346 INFO L899 garLoopResultBuilder]: For program point L1966(lines 1966 1973) no Hoare annotation was computed. [2023-11-19 05:12:49,346 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1959 1975) the Hoare annotation is: true [2023-11-19 05:12:49,346 INFO L899 garLoopResultBuilder]: For program point ldv_mallocFINAL(lines 1959 1975) no Hoare annotation was computed. [2023-11-19 05:12:49,347 INFO L902 garLoopResultBuilder]: At program point L1971(line 1971) the Hoare annotation is: true [2023-11-19 05:12:49,347 INFO L899 garLoopResultBuilder]: For program point L1971-1(line 1971) no Hoare annotation was computed. [2023-11-19 05:12:49,347 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 1959 1975) no Hoare annotation was computed. [2023-11-19 05:12:49,347 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2969 2971) the Hoare annotation is: true [2023-11-19 05:12:49,347 INFO L899 garLoopResultBuilder]: For program point _torture_create_kthreadEXIT(lines 2969 2971) no Hoare annotation was computed. [2023-11-19 05:12:49,347 INFO L899 garLoopResultBuilder]: For program point L2849-1(line 2849) no Hoare annotation was computed. [2023-11-19 05:12:49,348 INFO L902 garLoopResultBuilder]: At program point L2849(line 2849) the Hoare annotation is: true [2023-11-19 05:12:49,348 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2123 2129) the Hoare annotation is: true [2023-11-19 05:12:49,348 INFO L899 garLoopResultBuilder]: For program point torture_spin_lock_write_lockEXIT(lines 2123 2129) no Hoare annotation was computed. [2023-11-19 05:12:49,348 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (or (not (= ~ldv_state_variable_1~0 0)) (not (= |old(~ldv_spin~0)| 0)) (not (= ~onoff_interval~0 0)) (not (= 0 ~lwsa~0.base)) (= ~ldv_spin~0 0) (not (= ~ldv_state_variable_0~0 1)) (not (= ~ldv_state_variable_2~0 0)) (not (= ~lwsa~0.offset 0))) [2023-11-19 05:12:49,348 INFO L899 garLoopResultBuilder]: For program point L-1-2(line -1) no Hoare annotation was computed. [2023-11-19 05:12:49,349 INFO L899 garLoopResultBuilder]: For program point ##fun~~TO~VOIDEXIT(line -1) no Hoare annotation was computed. [2023-11-19 05:12:49,349 INFO L902 garLoopResultBuilder]: At program point L-1-3(line -1) the Hoare annotation is: true [2023-11-19 05:12:49,349 INFO L899 garLoopResultBuilder]: For program point L-1-5(line -1) no Hoare annotation was computed. [2023-11-19 05:12:49,349 INFO L902 garLoopResultBuilder]: At program point L-1-6(line -1) the Hoare annotation is: true [2023-11-19 05:12:49,349 INFO L895 garLoopResultBuilder]: At program point L-1-8(line -1) the Hoare annotation is: (or (not (= ~ldv_state_variable_1~0 0)) (not (= |old(~ldv_spin~0)| 0)) (not (= ~onoff_interval~0 0)) (not (= 0 ~lwsa~0.base)) (= ~ldv_spin~0 0) (not (= ~ldv_state_variable_0~0 1)) (not (= ~ldv_state_variable_2~0 0)) (not (= ~lwsa~0.offset 0))) [2023-11-19 05:12:49,350 INFO L899 garLoopResultBuilder]: For program point L-1-9(line -1) no Hoare annotation was computed. [2023-11-19 05:12:49,350 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (or (not (= ~ldv_state_variable_1~0 0)) (not (= |old(~ldv_spin~0)| 0)) (not (= ~onoff_interval~0 0)) (not (= 0 ~lwsa~0.base)) (= ~ldv_spin~0 0) (not (= ~ldv_state_variable_0~0 1)) (not (= ~ldv_state_variable_2~0 0)) (not (= ~lwsa~0.offset 0))) [2023-11-19 05:12:49,351 INFO L899 garLoopResultBuilder]: For program point L1983(lines 1983 1990) no Hoare annotation was computed. [2023-11-19 05:12:49,351 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1976 1992) the Hoare annotation is: true [2023-11-19 05:12:49,351 INFO L899 garLoopResultBuilder]: For program point ldv_zallocEXIT(lines 1976 1992) no Hoare annotation was computed. [2023-11-19 05:12:49,351 INFO L902 garLoopResultBuilder]: At program point L1988(line 1988) the Hoare annotation is: true [2023-11-19 05:12:49,351 INFO L899 garLoopResultBuilder]: For program point ldv_zallocFINAL(lines 1976 1992) no Hoare annotation was computed. [2023-11-19 05:12:49,351 INFO L899 garLoopResultBuilder]: For program point L1988-1(line 1988) no Hoare annotation was computed. [2023-11-19 05:12:49,352 INFO L899 garLoopResultBuilder]: For program point torture_spin_lock_write_unlockEXIT(lines 2164 2170) no Hoare annotation was computed. [2023-11-19 05:12:49,352 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2164 2170) the Hoare annotation is: true [2023-11-19 05:12:49,352 INFO L899 garLoopResultBuilder]: For program point L2857-1(line 2857) no Hoare annotation was computed. [2023-11-19 05:12:49,352 INFO L902 garLoopResultBuilder]: At program point L2857(line 2857) the Hoare annotation is: true [2023-11-19 05:12:49,352 INFO L899 garLoopResultBuilder]: For program point L2744(lines 2744 2748) no Hoare annotation was computed. [2023-11-19 05:12:49,352 INFO L899 garLoopResultBuilder]: For program point L2744-2(lines 2723 2773) no Hoare annotation was computed. [2023-11-19 05:12:49,353 INFO L895 garLoopResultBuilder]: At program point L2612(line 2612) the Hoare annotation is: (and (= ~onoff_interval~0 0) (= ~ldv_state_variable_2~0 0) (= ~ldv_spin~0 0) (<= 0 ~ref_cnt~0) (= ~ldv_state_variable_1~0 0) (= 0 ~lwsa~0.base) (= ~lwsa~0.offset 0)) [2023-11-19 05:12:49,353 INFO L899 garLoopResultBuilder]: For program point L2612-1(line 2612) no Hoare annotation was computed. [2023-11-19 05:12:49,353 INFO L899 garLoopResultBuilder]: For program point L2579(line 2579) no Hoare annotation was computed. [2023-11-19 05:12:49,353 INFO L899 garLoopResultBuilder]: For program point L2778(line 2778) no Hoare annotation was computed. [2023-11-19 05:12:49,353 INFO L899 garLoopResultBuilder]: For program point L2745-1(line 2745) no Hoare annotation was computed. [2023-11-19 05:12:49,354 INFO L895 garLoopResultBuilder]: At program point L2745(line 2745) the Hoare annotation is: (let ((.cse0 (= ~onoff_interval~0 0)) (.cse1 (= ~ldv_state_variable_2~0 0)) (.cse2 (= ~ldv_spin~0 0)) (.cse3 (= ~ldv_state_variable_1~0 0))) (or (and (= ~ldv_state_variable_0~0 1) .cse0 .cse1 .cse2 .cse3 (= 0 ~lwsa~0.base) (= ~lwsa~0.offset 0)) (and .cse0 .cse1 .cse2 .cse3 (= ~ldv_state_variable_0~0 3)))) [2023-11-19 05:12:49,354 INFO L895 garLoopResultBuilder]: At program point lock_torture_init_unwind#1(lines 2425 2585) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_spin~0 0) (<= (+ |ULTIMATE.start_lock_torture_init_~firsterr~0#1| 12) 0)) [2023-11-19 05:12:49,354 INFO L899 garLoopResultBuilder]: For program point L2779(lines 2779 2834) no Hoare annotation was computed. [2023-11-19 05:12:49,354 INFO L899 garLoopResultBuilder]: For program point L2713(line 2713) no Hoare annotation was computed. [2023-11-19 05:12:49,354 INFO L895 garLoopResultBuilder]: At program point L2614(line 2614) the Hoare annotation is: (and (= ~onoff_interval~0 0) (= ~ldv_state_variable_2~0 0) (= ~ldv_spin~0 0) (<= 0 ~ref_cnt~0) (= ~ldv_state_variable_1~0 0) (= 0 ~lwsa~0.base) (= ~lwsa~0.offset 0)) [2023-11-19 05:12:49,355 INFO L899 garLoopResultBuilder]: For program point L2614-1(line 2614) no Hoare annotation was computed. [2023-11-19 05:12:49,355 INFO L899 garLoopResultBuilder]: For program point L2813(line 2813) no Hoare annotation was computed. [2023-11-19 05:12:49,355 INFO L902 garLoopResultBuilder]: At program point L2714(line 2714) the Hoare annotation is: true [2023-11-19 05:12:49,355 INFO L899 garLoopResultBuilder]: For program point L2648(line 2648) no Hoare annotation was computed. [2023-11-19 05:12:49,355 INFO L895 garLoopResultBuilder]: At program point L2582(line 2582) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_spin~0 0) (<= (+ |ULTIMATE.start_lock_torture_init_~firsterr~0#1| 12) 0)) [2023-11-19 05:12:49,355 INFO L899 garLoopResultBuilder]: For program point L2516-1(lines 2425 2585) no Hoare annotation was computed. [2023-11-19 05:12:49,356 INFO L899 garLoopResultBuilder]: For program point L2781(lines 2781 2831) no Hoare annotation was computed. [2023-11-19 05:12:49,356 INFO L899 garLoopResultBuilder]: For program point L2649(lines 2649 2653) no Hoare annotation was computed. [2023-11-19 05:12:49,356 INFO L899 garLoopResultBuilder]: For program point L2649-2(lines 2628 2678) no Hoare annotation was computed. [2023-11-19 05:12:49,356 INFO L899 garLoopResultBuilder]: For program point L2583(line 2583) no Hoare annotation was computed. [2023-11-19 05:12:49,356 INFO L899 garLoopResultBuilder]: For program point L2484(line 2484) no Hoare annotation was computed. [2023-11-19 05:12:49,356 INFO L899 garLoopResultBuilder]: For program point L2782(line 2782) no Hoare annotation was computed. [2023-11-19 05:12:49,357 INFO L895 garLoopResultBuilder]: At program point L2650(line 2650) the Hoare annotation is: false [2023-11-19 05:12:49,357 INFO L899 garLoopResultBuilder]: For program point L2683(line 2683) no Hoare annotation was computed. [2023-11-19 05:12:49,357 INFO L899 garLoopResultBuilder]: For program point L2650-1(line 2650) no Hoare annotation was computed. [2023-11-19 05:12:49,357 INFO L899 garLoopResultBuilder]: For program point L2518(lines 2518 2521) no Hoare annotation was computed. [2023-11-19 05:12:49,357 INFO L895 garLoopResultBuilder]: At program point lock_torture_init_ldv_22770#1(lines 2425 2585) the Hoare annotation is: false [2023-11-19 05:12:49,357 INFO L895 garLoopResultBuilder]: At program point L2750(line 2750) the Hoare annotation is: (let ((.cse0 (= ~onoff_interval~0 0)) (.cse1 (= ~ldv_state_variable_2~0 0)) (.cse2 (= ~ldv_spin~0 0)) (.cse3 (= ~ldv_state_variable_1~0 0))) (or (and (= ~ldv_state_variable_0~0 1) .cse0 .cse1 .cse2 .cse3 (= 0 ~lwsa~0.base) (= ~lwsa~0.offset 0)) (and .cse0 .cse1 .cse2 .cse3 (= ~ldv_state_variable_0~0 3)))) [2023-11-19 05:12:49,358 INFO L899 garLoopResultBuilder]: For program point L2783(lines 2783 2787) no Hoare annotation was computed. [2023-11-19 05:12:49,358 INFO L899 garLoopResultBuilder]: For program point L2684(lines 2684 2718) no Hoare annotation was computed. [2023-11-19 05:12:49,359 INFO L899 garLoopResultBuilder]: For program point L2750-1(line 2750) no Hoare annotation was computed. [2023-11-19 05:12:49,359 INFO L895 garLoopResultBuilder]: At program point L2486(line 2486) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~onoff_interval~0 0) (= ~ldv_state_variable_2~0 0) (= ~ldv_spin~0 0) (= ~ldv_state_variable_1~0 0) (= 0 ~lwsa~0.base) (= ~lwsa~0.offset 0)) [2023-11-19 05:12:49,359 INFO L899 garLoopResultBuilder]: For program point L2486-1(line 2486) no Hoare annotation was computed. [2023-11-19 05:12:49,359 INFO L899 garLoopResultBuilder]: For program point L2883-1(line 2883) no Hoare annotation was computed. [2023-11-19 05:12:49,359 INFO L895 garLoopResultBuilder]: At program point L2883(line 2883) the Hoare annotation is: false [2023-11-19 05:12:49,360 INFO L895 garLoopResultBuilder]: At program point L2784(line 2784) the Hoare annotation is: false [2023-11-19 05:12:49,360 INFO L899 garLoopResultBuilder]: For program point L2784-1(line 2784) no Hoare annotation was computed. [2023-11-19 05:12:49,360 INFO L899 garLoopResultBuilder]: For program point L2686(lines 2686 2715) no Hoare annotation was computed. [2023-11-19 05:12:49,360 INFO L899 garLoopResultBuilder]: For program point L2554(lines 2554 2557) no Hoare annotation was computed. [2023-11-19 05:12:49,360 INFO L899 garLoopResultBuilder]: For program point L2488(lines 2488 2496) no Hoare annotation was computed. [2023-11-19 05:12:49,360 INFO L899 garLoopResultBuilder]: For program point L2720(line 2720) no Hoare annotation was computed. [2023-11-19 05:12:49,361 INFO L899 garLoopResultBuilder]: For program point L2687(line 2687) no Hoare annotation was computed. [2023-11-19 05:12:49,361 INFO L899 garLoopResultBuilder]: For program point L2489(lines 2489 2492) no Hoare annotation was computed. [2023-11-19 05:12:49,361 INFO L899 garLoopResultBuilder]: For program point L2489-2(lines 2489 2492) no Hoare annotation was computed. [2023-11-19 05:12:49,361 INFO L899 garLoopResultBuilder]: For program point L2688(lines 2688 2693) no Hoare annotation was computed. [2023-11-19 05:12:49,361 INFO L899 garLoopResultBuilder]: For program point L2721(lines 2721 2776) no Hoare annotation was computed. [2023-11-19 05:12:49,361 INFO L899 garLoopResultBuilder]: For program point L2622(lines 2609 2844) no Hoare annotation was computed. [2023-11-19 05:12:49,361 INFO L899 garLoopResultBuilder]: For program point L2655-1(line 2655) no Hoare annotation was computed. [2023-11-19 05:12:49,362 INFO L895 garLoopResultBuilder]: At program point L2655(line 2655) the Hoare annotation is: false [2023-11-19 05:12:49,362 INFO L895 garLoopResultBuilder]: At program point L2490(line 2490) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_spin~0 0)) [2023-11-19 05:12:49,362 INFO L899 garLoopResultBuilder]: For program point L2457-1(line 2457) no Hoare annotation was computed. [2023-11-19 05:12:49,362 INFO L895 garLoopResultBuilder]: At program point L2457(line 2457) the Hoare annotation is: (= ~ldv_state_variable_0~0 1) [2023-11-19 05:12:49,362 INFO L899 garLoopResultBuilder]: For program point L2490-1(line 2490) no Hoare annotation was computed. [2023-11-19 05:12:49,363 INFO L899 garLoopResultBuilder]: For program point L2821(line 2821) no Hoare annotation was computed. [2023-11-19 05:12:49,363 INFO L899 garLoopResultBuilder]: For program point L2755(line 2755) no Hoare annotation was computed. [2023-11-19 05:12:49,363 INFO L899 garLoopResultBuilder]: For program point L2689-1(line 2689) no Hoare annotation was computed. [2023-11-19 05:12:49,363 INFO L895 garLoopResultBuilder]: At program point L2689(line 2689) the Hoare annotation is: (= ~ldv_spin~0 0) [2023-11-19 05:12:49,363 INFO L899 garLoopResultBuilder]: For program point main_ldv_final#1(lines 2609 2844) no Hoare annotation was computed. [2023-11-19 05:12:49,363 INFO L895 garLoopResultBuilder]: At program point L2458(line 2458) the Hoare annotation is: (= ~ldv_state_variable_0~0 1) [2023-11-19 05:12:49,363 INFO L899 garLoopResultBuilder]: For program point L2524-1(lines 2425 2585) no Hoare annotation was computed. [2023-11-19 05:12:49,364 INFO L899 garLoopResultBuilder]: For program point L2458-1(line 2458) no Hoare annotation was computed. [2023-11-19 05:12:49,364 INFO L899 garLoopResultBuilder]: For program point L2789(line 2789) no Hoare annotation was computed. [2023-11-19 05:12:49,364 INFO L899 garLoopResultBuilder]: For program point L2723(lines 2723 2773) no Hoare annotation was computed. [2023-11-19 05:12:49,364 INFO L899 garLoopResultBuilder]: For program point L2624(lines 2624 2838) no Hoare annotation was computed. [2023-11-19 05:12:49,364 INFO L899 garLoopResultBuilder]: For program point L2558(lines 2558 2561) no Hoare annotation was computed. [2023-11-19 05:12:49,364 INFO L899 garLoopResultBuilder]: For program point L2790(lines 2790 2794) no Hoare annotation was computed. [2023-11-19 05:12:49,365 INFO L899 garLoopResultBuilder]: For program point L2724(line 2724) no Hoare annotation was computed. [2023-11-19 05:12:49,365 INFO L899 garLoopResultBuilder]: For program point L2790-2(lines 2781 2831) no Hoare annotation was computed. [2023-11-19 05:12:49,365 INFO L899 garLoopResultBuilder]: For program point L2625(line 2625) no Hoare annotation was computed. [2023-11-19 05:12:49,365 INFO L899 garLoopResultBuilder]: For program point L2526(lines 2526 2529) no Hoare annotation was computed. [2023-11-19 05:12:49,365 INFO L899 garLoopResultBuilder]: For program point L2791-1(line 2791) no Hoare annotation was computed. [2023-11-19 05:12:49,365 INFO L895 garLoopResultBuilder]: At program point L2791(line 2791) the Hoare annotation is: false [2023-11-19 05:12:49,366 INFO L899 garLoopResultBuilder]: For program point L2725(lines 2725 2729) no Hoare annotation was computed. [2023-11-19 05:12:49,366 INFO L899 garLoopResultBuilder]: For program point L2626(lines 2626 2681) no Hoare annotation was computed. [2023-11-19 05:12:49,366 INFO L895 garLoopResultBuilder]: At program point L2726(line 2726) the Hoare annotation is: (let ((.cse0 (= ~onoff_interval~0 0)) (.cse1 (= ~ldv_state_variable_2~0 0)) (.cse2 (= ~ldv_spin~0 0)) (.cse3 (= ~ldv_state_variable_1~0 0))) (or (and (= ~ldv_state_variable_0~0 1) .cse0 .cse1 .cse2 .cse3 (= 0 ~lwsa~0.base) (= ~lwsa~0.offset 0)) (and .cse0 .cse1 .cse2 .cse3 (= ~ldv_state_variable_0~0 3)))) [2023-11-19 05:12:49,366 INFO L899 garLoopResultBuilder]: For program point L2660(line 2660) no Hoare annotation was computed. [2023-11-19 05:12:49,366 INFO L899 garLoopResultBuilder]: For program point L2726-1(line 2726) no Hoare annotation was computed. [2023-11-19 05:12:49,366 INFO L895 garLoopResultBuilder]: At program point L2462(line 2462) the Hoare annotation is: (= ~ldv_state_variable_0~0 1) [2023-11-19 05:12:49,367 INFO L899 garLoopResultBuilder]: For program point L2462-1(line 2462) no Hoare annotation was computed. [2023-11-19 05:12:49,367 INFO L899 garLoopResultBuilder]: For program point L2628(lines 2628 2678) no Hoare annotation was computed. [2023-11-19 05:12:49,367 INFO L899 garLoopResultBuilder]: For program point L2695(line 2695) no Hoare annotation was computed. [2023-11-19 05:12:49,367 INFO L899 garLoopResultBuilder]: For program point L2629(line 2629) no Hoare annotation was computed. [2023-11-19 05:12:49,367 INFO L899 garLoopResultBuilder]: For program point L2431-2(lines 2425 2585) no Hoare annotation was computed. [2023-11-19 05:12:49,367 INFO L899 garLoopResultBuilder]: For program point L2696(lines 2696 2711) no Hoare annotation was computed. [2023-11-19 05:12:49,368 INFO L899 garLoopResultBuilder]: For program point L2630(lines 2630 2634) no Hoare annotation was computed. [2023-11-19 05:12:49,368 INFO L899 garLoopResultBuilder]: For program point lock_torture_init_returnLabel#1(lines 2414 2586) no Hoare annotation was computed. [2023-11-19 05:12:49,368 INFO L895 garLoopResultBuilder]: At program point L2796(line 2796) the Hoare annotation is: false [2023-11-19 05:12:49,368 INFO L899 garLoopResultBuilder]: For program point L2829(line 2829) no Hoare annotation was computed. [2023-11-19 05:12:49,368 INFO L899 garLoopResultBuilder]: For program point L2763(line 2763) no Hoare annotation was computed. [2023-11-19 05:12:49,368 INFO L899 garLoopResultBuilder]: For program point L2796-1(line 2796) no Hoare annotation was computed. [2023-11-19 05:12:49,368 INFO L899 garLoopResultBuilder]: For program point L2631-1(line 2631) no Hoare annotation was computed. [2023-11-19 05:12:49,369 INFO L895 garLoopResultBuilder]: At program point L2631(line 2631) the Hoare annotation is: false [2023-11-19 05:12:49,369 INFO L899 garLoopResultBuilder]: For program point L2532-1(lines 2532 2539) no Hoare annotation was computed. [2023-11-19 05:12:49,369 INFO L902 garLoopResultBuilder]: At program point L2830(line 2830) the Hoare annotation is: true [2023-11-19 05:12:49,369 INFO L899 garLoopResultBuilder]: For program point L2731(line 2731) no Hoare annotation was computed. [2023-11-19 05:12:49,369 INFO L899 garLoopResultBuilder]: For program point L2698-2(lines 2696 2710) no Hoare annotation was computed. [2023-11-19 05:12:49,369 INFO L899 garLoopResultBuilder]: For program point L2732(lines 2732 2736) no Hoare annotation was computed. [2023-11-19 05:12:49,370 INFO L899 garLoopResultBuilder]: For program point L2732-2(lines 2723 2773) no Hoare annotation was computed. [2023-11-19 05:12:49,370 INFO L899 garLoopResultBuilder]: For program point $Ultimate##76(lines 2504 2507) no Hoare annotation was computed. [2023-11-19 05:12:49,370 INFO L899 garLoopResultBuilder]: For program point L2534(lines 2534 2537) no Hoare annotation was computed. [2023-11-19 05:12:49,370 INFO L899 garLoopResultBuilder]: For program point $Ultimate##61(lines 2456 2473) no Hoare annotation was computed. [2023-11-19 05:12:49,370 INFO L899 garLoopResultBuilder]: For program point L2733-1(line 2733) no Hoare annotation was computed. [2023-11-19 05:12:49,370 INFO L895 garLoopResultBuilder]: At program point L2733(line 2733) the Hoare annotation is: (let ((.cse0 (= ~onoff_interval~0 0)) (.cse1 (= ~ldv_state_variable_2~0 0)) (.cse2 (= ~ldv_spin~0 0)) (.cse3 (= ~ldv_state_variable_1~0 0))) (or (and (= ~ldv_state_variable_0~0 1) .cse0 .cse1 .cse2 .cse3 (= 0 ~lwsa~0.base) (= ~lwsa~0.offset 0)) (and .cse0 .cse1 .cse2 .cse3 (= ~ldv_state_variable_0~0 3)))) [2023-11-19 05:12:49,371 INFO L899 garLoopResultBuilder]: For program point L2568(lines 2568 2578) no Hoare annotation was computed. [2023-11-19 05:12:49,371 INFO L899 garLoopResultBuilder]: For program point $Ultimate##63(lines 2465 2468) no Hoare annotation was computed. [2023-11-19 05:12:49,372 INFO L895 garLoopResultBuilder]: At program point L2568-2(lines 2568 2578) the Hoare annotation is: false [2023-11-19 05:12:49,372 INFO L899 garLoopResultBuilder]: For program point L2469-1(line 2469) no Hoare annotation was computed. [2023-11-19 05:12:49,372 INFO L895 garLoopResultBuilder]: At program point L2469(line 2469) the Hoare annotation is: (= ~ldv_state_variable_0~0 1) [2023-11-19 05:12:49,372 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 05:12:49,372 INFO L899 garLoopResultBuilder]: For program point $Ultimate##59(lines 2451 2454) no Hoare annotation was computed. [2023-11-19 05:12:49,372 INFO L899 garLoopResultBuilder]: For program point L2668(line 2668) no Hoare annotation was computed. [2023-11-19 05:12:49,373 INFO L899 garLoopResultBuilder]: For program point L2569-1(lines 2569 2572) no Hoare annotation was computed. [2023-11-19 05:12:49,373 INFO L895 garLoopResultBuilder]: At program point L2569(lines 2569 2572) the Hoare annotation is: false [2023-11-19 05:12:49,373 INFO L895 garLoopResultBuilder]: At program point L2470(line 2470) the Hoare annotation is: (= ~ldv_state_variable_0~0 1) [2023-11-19 05:12:49,373 INFO L899 garLoopResultBuilder]: For program point L2470-1(line 2470) no Hoare annotation was computed. [2023-11-19 05:12:49,373 INFO L899 garLoopResultBuilder]: For program point L2801(line 2801) no Hoare annotation was computed. [2023-11-19 05:12:49,373 INFO L899 garLoopResultBuilder]: For program point L2636(line 2636) no Hoare annotation was computed. [2023-11-19 05:12:49,374 INFO L899 garLoopResultBuilder]: For program point L2802(lines 2802 2806) no Hoare annotation was computed. [2023-11-19 05:12:49,374 INFO L899 garLoopResultBuilder]: For program point L2802-2(lines 2781 2831) no Hoare annotation was computed. [2023-11-19 05:12:49,375 INFO L899 garLoopResultBuilder]: For program point L2637(lines 2637 2641) no Hoare annotation was computed. [2023-11-19 05:12:49,375 INFO L899 garLoopResultBuilder]: For program point L2637-2(lines 2628 2678) no Hoare annotation was computed. [2023-11-19 05:12:49,375 INFO L899 garLoopResultBuilder]: For program point L2836(line 2836) no Hoare annotation was computed. [2023-11-19 05:12:49,375 INFO L899 garLoopResultBuilder]: For program point L2803-1(line 2803) no Hoare annotation was computed. [2023-11-19 05:12:49,375 INFO L895 garLoopResultBuilder]: At program point L2803(line 2803) the Hoare annotation is: false [2023-11-19 05:12:49,375 INFO L895 garLoopResultBuilder]: At program point L2638(line 2638) the Hoare annotation is: false [2023-11-19 05:12:49,376 INFO L899 garLoopResultBuilder]: For program point L2638-1(line 2638) no Hoare annotation was computed. [2023-11-19 05:12:49,376 INFO L902 garLoopResultBuilder]: At program point L2837(line 2837) the Hoare annotation is: true [2023-11-19 05:12:49,376 INFO L895 garLoopResultBuilder]: At program point L2738(line 2738) the Hoare annotation is: (let ((.cse0 (= ~onoff_interval~0 0)) (.cse1 (= ~ldv_state_variable_2~0 0)) (.cse2 (= ~ldv_spin~0 0)) (.cse3 (= ~ldv_state_variable_1~0 0))) (or (and (= ~ldv_state_variable_0~0 1) .cse0 .cse1 .cse2 .cse3 (= 0 ~lwsa~0.base) (= ~lwsa~0.offset 0)) (and .cse0 .cse1 .cse2 .cse3 (= ~ldv_state_variable_0~0 3)))) [2023-11-19 05:12:49,377 INFO L899 garLoopResultBuilder]: For program point L2771(line 2771) no Hoare annotation was computed. [2023-11-19 05:12:49,378 INFO L899 garLoopResultBuilder]: For program point L2738-1(line 2738) no Hoare annotation was computed. [2023-11-19 05:12:49,378 INFO L899 garLoopResultBuilder]: For program point L2573(lines 2573 2576) no Hoare annotation was computed. [2023-11-19 05:12:49,378 INFO L899 garLoopResultBuilder]: For program point L2474(lines 2474 2477) no Hoare annotation was computed. [2023-11-19 05:12:49,378 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 05:12:49,378 INFO L899 garLoopResultBuilder]: For program point L2474-2(lines 2425 2585) no Hoare annotation was computed. [2023-11-19 05:12:49,378 INFO L902 garLoopResultBuilder]: At program point L2772(line 2772) the Hoare annotation is: true [2023-11-19 05:12:49,379 INFO L899 garLoopResultBuilder]: For program point L2508(lines 2508 2515) no Hoare annotation was computed. [2023-11-19 05:12:49,379 INFO L899 garLoopResultBuilder]: For program point L2475-1(line 2475) no Hoare annotation was computed. [2023-11-19 05:12:49,379 INFO L899 garLoopResultBuilder]: For program point L2508-2(lines 2425 2585) no Hoare annotation was computed. [2023-11-19 05:12:49,379 INFO L895 garLoopResultBuilder]: At program point L2475(line 2475) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~onoff_interval~0 0) (= ~ldv_state_variable_2~0 0) (= ~ldv_spin~0 0) (= ~ldv_state_variable_1~0 0) (= 0 ~lwsa~0.base) (= ~lwsa~0.offset 0)) [2023-11-19 05:12:49,379 INFO L899 garLoopResultBuilder]: For program point L2542(lines 2542 2550) no Hoare annotation was computed. [2023-11-19 05:12:49,379 INFO L899 garLoopResultBuilder]: For program point L2510(lines 2510 2513) no Hoare annotation was computed. [2023-11-19 05:12:49,380 INFO L899 garLoopResultBuilder]: For program point L2543(lines 2543 2546) no Hoare annotation was computed. [2023-11-19 05:12:49,380 INFO L899 garLoopResultBuilder]: For program point L2543-2(lines 2543 2546) no Hoare annotation was computed. [2023-11-19 05:12:49,380 INFO L899 garLoopResultBuilder]: For program point $Ultimate##105(lines 2564 2567) no Hoare annotation was computed. [2023-11-19 05:12:49,380 INFO L895 garLoopResultBuilder]: At program point L2808(line 2808) the Hoare annotation is: false [2023-11-19 05:12:49,380 INFO L899 garLoopResultBuilder]: For program point L2808-1(line 2808) no Hoare annotation was computed. [2023-11-19 05:12:49,380 INFO L899 garLoopResultBuilder]: For program point L2676(line 2676) no Hoare annotation was computed. [2023-11-19 05:12:49,381 INFO L895 garLoopResultBuilder]: At program point L2610(line 2610) the Hoare annotation is: (and (= ~onoff_interval~0 0) (= ~ldv_state_variable_2~0 0) (= ~ldv_spin~0 0) (<= 0 ~ref_cnt~0) (= ~ldv_state_variable_1~0 0) (= 0 ~lwsa~0.base) (= ~lwsa~0.offset 0)) [2023-11-19 05:12:49,381 INFO L899 garLoopResultBuilder]: For program point L2643-1(line 2643) no Hoare annotation was computed. [2023-11-19 05:12:49,381 INFO L895 garLoopResultBuilder]: At program point L2643(line 2643) the Hoare annotation is: false [2023-11-19 05:12:49,381 INFO L895 garLoopResultBuilder]: At program point L2544(line 2544) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_spin~0 0)) [2023-11-19 05:12:49,381 INFO L899 garLoopResultBuilder]: For program point L2610-1(line 2610) no Hoare annotation was computed. [2023-11-19 05:12:49,381 INFO L899 garLoopResultBuilder]: For program point L2544-1(line 2544) no Hoare annotation was computed. [2023-11-19 05:12:49,382 INFO L899 garLoopResultBuilder]: For program point L2445(lines 2445 2448) no Hoare annotation was computed. [2023-11-19 05:12:49,382 INFO L895 garLoopResultBuilder]: At program point L2478-1(lines 2478 2483) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~onoff_interval~0 0) (= ~ldv_state_variable_2~0 0) (= ~ldv_spin~0 0) (= ~ldv_state_variable_1~0 0) (= 0 ~lwsa~0.base) (= ~lwsa~0.offset 0)) [2023-11-19 05:12:49,382 INFO L899 garLoopResultBuilder]: For program point L2743(line 2743) no Hoare annotation was computed. [2023-11-19 05:12:49,382 INFO L902 garLoopResultBuilder]: At program point L2677(line 2677) the Hoare annotation is: true [2023-11-19 05:12:49,382 INFO L895 garLoopResultBuilder]: At program point L2894(line 2894) the Hoare annotation is: (not (= ~ldv_spin~0 0)) [2023-11-19 05:12:49,383 INFO L899 garLoopResultBuilder]: For program point ldv_check_alloc_flagsEXIT(lines 2889 2898) no Hoare annotation was computed. [2023-11-19 05:12:49,383 INFO L899 garLoopResultBuilder]: For program point L2894-1(lines 2889 2898) no Hoare annotation was computed. [2023-11-19 05:12:49,383 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2889 2898) the Hoare annotation is: true [2023-11-19 05:12:49,383 INFO L899 garLoopResultBuilder]: For program point L2892-7(lines 2892 2895) no Hoare annotation was computed. [2023-11-19 05:12:49,386 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:49,388 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:12:49,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:12:49 BoogieIcfgContainer [2023-11-19 05:12:49,403 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:12:49,403 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:12:49,403 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:12:49,404 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:12:49,404 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:22" (3/4) ... [2023-11-19 05:12:49,406 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 05:12:49,410 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _torture_stop_kthread [2023-11-19 05:12:49,410 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kfree [2023-11-19 05:12:49,410 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_lock_busted_write_delay [2023-11-19 05:12:49,410 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2023-11-19 05:12:49,410 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_lock_spin_write_unlock_irq [2023-11-19 05:12:49,410 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __const_udelay [2023-11-19 05:12:49,411 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2023-11-19 05:12:49,411 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_lock_busted_write_lock [2023-11-19 05:12:49,411 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmalloc [2023-11-19 05:12:49,411 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_random [2023-11-19 05:12:49,411 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2023-11-19 05:12:49,411 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lock_torture_stats_print [2023-11-19 05:12:49,412 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_lock_busted_write_unlock [2023-11-19 05:12:49,412 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lock_torture_print_module_parms [2023-11-19 05:12:49,412 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_spin_lock_write_delay [2023-11-19 05:12:49,412 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lock_torture_cleanup [2023-11-19 05:12:49,412 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_init_end [2023-11-19 05:12:49,412 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 05:12:49,412 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_spin_unlock [2023-11-19 05:12:49,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_spin_lock [2023-11-19 05:12:49,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_spin_lock_write_lock_irq [2023-11-19 05:12:49,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2023-11-19 05:12:49,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _torture_create_kthread [2023-11-19 05:12:49,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_spin_lock_write_lock [2023-11-19 05:12:49,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~~TO~VOID [2023-11-19 05:12:49,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_zalloc [2023-11-19 05:12:49,414 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_spin_lock_write_unlock [2023-11-19 05:12:49,414 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_check_alloc_flags [2023-11-19 05:12:49,446 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 170 nodes and edges [2023-11-19 05:12:49,449 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2023-11-19 05:12:49,452 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-19 05:12:49,454 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 05:12:49,457 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 05:12:49,459 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 05:12:49,462 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 05:12:49,690 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:12:49,691 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 05:12:49,691 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:12:49,692 INFO L158 Benchmark]: Toolchain (without parser) took 31083.21ms. Allocated memory was 151.0MB in the beginning and 998.2MB in the end (delta: 847.2MB). Free memory was 102.9MB in the beginning and 403.3MB in the end (delta: -300.4MB). Peak memory consumption was 548.9MB. Max. memory is 16.1GB. [2023-11-19 05:12:49,692 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:12:49,693 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1220.45ms. Allocated memory is still 151.0MB. Free memory was 102.6MB in the beginning and 101.1MB in the end (delta: 1.5MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2023-11-19 05:12:49,693 INFO L158 Benchmark]: Boogie Procedure Inliner took 137.02ms. Allocated memory is still 151.0MB. Free memory was 101.1MB in the beginning and 94.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 05:12:49,694 INFO L158 Benchmark]: Boogie Preprocessor took 79.75ms. Allocated memory is still 151.0MB. Free memory was 94.9MB in the beginning and 90.0MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:12:49,694 INFO L158 Benchmark]: RCFGBuilder took 2034.37ms. Allocated memory was 151.0MB in the beginning and 203.4MB in the end (delta: 52.4MB). Free memory was 89.3MB in the beginning and 149.8MB in the end (delta: -60.5MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2023-11-19 05:12:49,695 INFO L158 Benchmark]: TraceAbstraction took 27314.49ms. Allocated memory was 203.4MB in the beginning and 998.2MB in the end (delta: 794.8MB). Free memory was 148.7MB in the beginning and 423.2MB in the end (delta: -274.5MB). Peak memory consumption was 520.3MB. Max. memory is 16.1GB. [2023-11-19 05:12:49,695 INFO L158 Benchmark]: Witness Printer took 288.03ms. Allocated memory is still 998.2MB. Free memory was 423.2MB in the beginning and 403.3MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 05:12:49,698 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1220.45ms. Allocated memory is still 151.0MB. Free memory was 102.6MB in the beginning and 101.1MB in the end (delta: 1.5MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 137.02ms. Allocated memory is still 151.0MB. Free memory was 101.1MB in the beginning and 94.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.75ms. Allocated memory is still 151.0MB. Free memory was 94.9MB in the beginning and 90.0MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2034.37ms. Allocated memory was 151.0MB in the beginning and 203.4MB in the end (delta: 52.4MB). Free memory was 89.3MB in the beginning and 149.8MB in the end (delta: -60.5MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * TraceAbstraction took 27314.49ms. Allocated memory was 203.4MB in the beginning and 998.2MB in the end (delta: 794.8MB). Free memory was 148.7MB in the beginning and 423.2MB in the end (delta: -274.5MB). Peak memory consumption was 520.3MB. Max. memory is 16.1GB. * Witness Printer took 288.03ms. Allocated memory is still 998.2MB. Free memory was 423.2MB in the beginning and 403.3MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 1855]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [1855] - GenericResultAtLocation [Line: 1858]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1858] - GenericResultAtLocation [Line: 1861]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1861] - GenericResultAtLocation [Line: 1864]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1864] - GenericResultAtLocation [Line: 1902]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [1902] * 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: 2013]: 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 29 procedures, 289 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.2s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4907 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4896 mSDsluCounter, 13206 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7314 mSDsCounter, 263 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2538 IncrementalHoareTripleChecker+Invalid, 2801 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 263 mSolverCounterUnsat, 5892 mSDtfsCounter, 2538 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 643 GetRequests, 586 SyntacticMatches, 4 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17103occurred in iteration=13, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 4735 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 98 LocationsWithAnnotation, 14281 PreInvPairs, 14509 NumberOfFragments, 556 HoareAnnotationTreeSize, 14281 FomulaSimplifications, 3489 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 98 FomulaSimplificationsInter, 9364 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 1658 NumberOfCodeBlocks, 1658 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1873 ConstructedInterpolants, 0 QuantifiedInterpolants, 3418 SizeOfPredicates, 20 NumberOfNonLiveVariables, 2886 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 19 InterpolantComputations, 14 PerfectInterpolantSequences, 547/607 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: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 2096]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2425]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2371]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2383]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2016]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2425]: Loop Invariant Derived loop invariant: (((ldv_state_variable_0 == 1) && (ldv_spin == 0)) && ((firsterr + 12) <= 0)) - InvariantResult [Line: 2142]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-19 05:12:49,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f947b0-6c9e-4c71-af4e-d7e7e1103ae9/bin/utaipan-verify-t7M7D8N6sZ/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