./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 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/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_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire --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-30e01a7 [2023-11-23 20:37:39,900 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:37:40,030 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:37:40,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:37:40,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:37:40,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:37:40,109 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:37:40,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:37:40,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:37:40,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:37:40,117 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:37:40,117 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:37:40,118 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:37:40,120 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:37:40,120 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:37:40,121 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:37:40,121 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:37:40,121 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:37:40,122 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:37:40,123 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:37:40,123 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:37:40,124 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:37:40,125 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:37:40,125 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:37:40,126 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:37:40,126 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:37:40,127 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:37:40,127 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:37:40,128 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:37:40,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:37:40,143 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:37:40,143 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:37:40,144 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:37:40,144 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:37:40,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:37:40,144 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:37:40,145 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:37:40,145 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:37:40,145 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:37:40,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:37:40,146 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:37:40,146 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:37:40,146 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:37:40,147 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:37:40,147 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_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0e62a2f55ddaeb08563a2d9bb0bfed8d8d740037b0faa92e9ebf8fe89adc120 [2023-11-23 20:37:40,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:37:40,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:37:40,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:37:40,534 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:37:40,534 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:37:40,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/../../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 [2023-11-23 20:37:44,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:37:44,639 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:37:44,640 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/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 [2023-11-23 20:37:44,683 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/data/ebadbff6a/33a1ba0a02fe4eb680390cdf89edb0db/FLAGba1be7614 [2023-11-23 20:37:44,707 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/data/ebadbff6a/33a1ba0a02fe4eb680390cdf89edb0db [2023-11-23 20:37:44,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:37:44,717 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:37:44,721 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:37:44,721 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:37:44,729 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:37:44,730 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:44" (1/1) ... [2023-11-23 20:37:44,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@441ffc7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:44, skipping insertion in model container [2023-11-23 20:37:44,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:44" (1/1) ... [2023-11-23 20:37:44,837 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:37:45,252 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1764] [2023-11-23 20:37:45,253 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] [2023-11-23 20:37:45,473 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_27b3ca5f-1548-44ac-b45a-ec2207add56b/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] [2023-11-23 20:37:45,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:45,897 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:37:45,986 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1764] [2023-11-23 20:37:45,987 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] [2023-11-23 20:37:45,991 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [1855] [2023-11-23 20:37:45,994 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1858] [2023-11-23 20:37:45,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1861] [2023-11-23 20:37:45,996 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1864] [2023-11-23 20:37:46,002 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] [2023-11-23 20:37:46,022 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_27b3ca5f-1548-44ac-b45a-ec2207add56b/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] [2023-11-23 20:37:46,160 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:46,212 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:37:46,213 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:37:46,222 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:37:46,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46 WrapperNode [2023-11-23 20:37:46,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:37:46,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:46,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:37:46,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:37:46,271 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,318 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,469 INFO L138 Inliner]: procedures = 114, calls = 301, calls flagged for inlining = 49, calls inlined = 38, statements flattened = 909 [2023-11-23 20:37:46,474 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:46,475 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:37:46,476 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:37:46,476 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:37:46,490 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,523 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,536 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,598 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,619 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,630 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,660 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:37:46,661 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:37:46,662 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:37:46,662 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:37:46,663 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:37:46,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:37:46,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:37:46,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:37:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_stop_kthread [2023-11-23 20:37:46,760 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_stop_kthread [2023-11-23 20:37:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_lock [2023-11-23 20:37:46,761 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_lock [2023-11-23 20:37:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:37:46,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:37:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:37:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_delay [2023-11-23 20:37:46,762 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_delay [2023-11-23 20:37:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 20:37:46,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 20:37:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:37:46,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:37:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_create_kthread [2023-11-23 20:37:46,765 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_create_kthread [2023-11-23 20:37:46,765 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock [2023-11-23 20:37:46,765 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock [2023-11-23 20:37:46,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 20:37:46,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 20:37:46,768 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:37:46,768 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:37:46,768 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_spin_write_unlock_irq [2023-11-23 20:37:46,768 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_spin_write_unlock_irq [2023-11-23 20:37:46,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:37:46,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 20:37:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 20:37:46,769 INFO L130 BoogieDeclarations]: Found specification of procedure torture_random [2023-11-23 20:37:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_random [2023-11-23 20:37:46,769 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_cleanup [2023-11-23 20:37:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_cleanup [2023-11-23 20:37:46,770 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_end [2023-11-23 20:37:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_end [2023-11-23 20:37:46,770 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:37:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:37:46,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:37:46,770 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2023-11-23 20:37:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2023-11-23 20:37:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:37:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 20:37:46,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 20:37:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:37:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:37:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 20:37:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_stats_print [2023-11-23 20:37:46,772 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_stats_print [2023-11-23 20:37:46,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:37:46,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 20:37:46,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 20:37:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock_irq [2023-11-23 20:37:46,773 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock_irq [2023-11-23 20:37:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:37:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:37:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_delay [2023-11-23 20:37:46,775 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_delay [2023-11-23 20:37:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:37:46,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:37:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 20:37:46,776 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 20:37:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_unlock [2023-11-23 20:37:46,776 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_unlock [2023-11-23 20:37:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_print_module_parms [2023-11-23 20:37:46,776 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_print_module_parms [2023-11-23 20:37:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:37:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 20:37:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 20:37:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_unlock [2023-11-23 20:37:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_unlock [2023-11-23 20:37:46,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:37:46,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:37:47,093 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:37:47,097 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:37:47,300 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:37:48,383 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:37:48,701 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:37:48,701 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:37:48,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:48 BoogieIcfgContainer [2023-11-23 20:37:48,704 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:37:48,707 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:37:48,707 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:37:48,711 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:37:48,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:37:44" (1/3) ... [2023-11-23 20:37:48,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a88b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:37:48, skipping insertion in model container [2023-11-23 20:37:48,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (2/3) ... [2023-11-23 20:37:48,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a88b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:37:48, skipping insertion in model container [2023-11-23 20:37:48,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:48" (3/3) ... [2023-11-23 20:37:48,715 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 [2023-11-23 20:37:48,737 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:37:48,738 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:37:48,818 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:37:48,829 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;@3872981c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:37:48,829 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:37:48,838 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) [2023-11-23 20:37:48,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-23 20:37:48,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:48,877 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] [2023-11-23 20:37:48,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:48,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:48,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1680440800, now seen corresponding path program 1 times [2023-11-23 20:37:48,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:48,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943290880] [2023-11-23 20:37:48,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:48,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:49,484 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:37:49,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:49,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943290880] [2023-11-23 20:37:49,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943290880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:49,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:49,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:37:49,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220746792] [2023-11-23 20:37:49,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:49,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:37:49,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:49,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:37:49,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:37:49,540 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) [2023-11-23 20:37:50,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:50,015 INFO L93 Difference]: Finished difference Result 759 states and 1096 transitions. [2023-11-23 20:37:50,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:37:50,023 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 [2023-11-23 20:37:50,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:50,060 INFO L225 Difference]: With dead ends: 759 [2023-11-23 20:37:50,076 INFO L226 Difference]: Without dead ends: 433 [2023-11-23 20:37:50,084 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 [2023-11-23 20:37:50,089 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 [2023-11-23 20:37:50,091 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] [2023-11-23 20:37:50,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2023-11-23 20:37:50,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 430. [2023-11-23 20:37:50,198 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) [2023-11-23 20:37:50,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 605 transitions. [2023-11-23 20:37:50,206 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 605 transitions. Word has length 41 [2023-11-23 20:37:50,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:50,207 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 605 transitions. [2023-11-23 20:37:50,207 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) [2023-11-23 20:37:50,208 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 605 transitions. [2023-11-23 20:37:50,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-23 20:37:50,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:50,214 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] [2023-11-23 20:37:50,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:37:50,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:50,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:50,216 INFO L85 PathProgramCache]: Analyzing trace with hash 849434724, now seen corresponding path program 1 times [2023-11-23 20:37:50,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:50,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598639982] [2023-11-23 20:37:50,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:50,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:50,700 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:37:50,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:50,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598639982] [2023-11-23 20:37:50,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598639982] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:50,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:50,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 20:37:50,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22952902] [2023-11-23 20:37:50,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:50,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:37:50,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:50,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:37:50,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:37:50,707 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) [2023-11-23 20:37:51,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:51,009 INFO L93 Difference]: Finished difference Result 813 states and 1173 transitions. [2023-11-23 20:37:51,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:37:51,010 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 [2023-11-23 20:37:51,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:51,023 INFO L225 Difference]: With dead ends: 813 [2023-11-23 20:37:51,023 INFO L226 Difference]: Without dead ends: 789 [2023-11-23 20:37:51,025 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 [2023-11-23 20:37:51,027 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 [2023-11-23 20:37:51,028 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] [2023-11-23 20:37:51,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2023-11-23 20:37:51,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 755. [2023-11-23 20:37:51,128 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) [2023-11-23 20:37:51,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1089 transitions. [2023-11-23 20:37:51,137 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1089 transitions. Word has length 48 [2023-11-23 20:37:51,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:51,138 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 1089 transitions. [2023-11-23 20:37:51,139 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) [2023-11-23 20:37:51,139 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1089 transitions. [2023-11-23 20:37:51,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 20:37:51,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:51,147 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] [2023-11-23 20:37:51,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:37:51,147 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:51,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:51,148 INFO L85 PathProgramCache]: Analyzing trace with hash -180374161, now seen corresponding path program 1 times [2023-11-23 20:37:51,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:51,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602454554] [2023-11-23 20:37:51,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:51,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:51,315 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:37:51,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:51,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602454554] [2023-11-23 20:37:51,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602454554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:51,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:51,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:37:51,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095477233] [2023-11-23 20:37:51,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:51,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:37:51,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:51,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:37:51,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:37:51,319 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) [2023-11-23 20:37:51,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:51,617 INFO L93 Difference]: Finished difference Result 1931 states and 2764 transitions. [2023-11-23 20:37:51,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:37:51,618 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 [2023-11-23 20:37:51,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:51,630 INFO L225 Difference]: With dead ends: 1931 [2023-11-23 20:37:51,630 INFO L226 Difference]: Without dead ends: 1191 [2023-11-23 20:37:51,636 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 [2023-11-23 20:37:51,644 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 [2023-11-23 20:37:51,646 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] [2023-11-23 20:37:51,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2023-11-23 20:37:51,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1159. [2023-11-23 20:37:51,782 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) [2023-11-23 20:37:51,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1655 transitions. [2023-11-23 20:37:51,793 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1655 transitions. Word has length 61 [2023-11-23 20:37:51,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:51,794 INFO L495 AbstractCegarLoop]: Abstraction has 1159 states and 1655 transitions. [2023-11-23 20:37:51,794 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) [2023-11-23 20:37:51,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1655 transitions. [2023-11-23 20:37:51,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-23 20:37:51,800 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:51,801 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] [2023-11-23 20:37:51,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:37:51,801 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:51,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:51,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1214369145, now seen corresponding path program 1 times [2023-11-23 20:37:51,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:51,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708489146] [2023-11-23 20:37:51,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:51,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:51,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:51,919 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:37:51,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:51,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708489146] [2023-11-23 20:37:51,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708489146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:51,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:51,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:37:51,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869813263] [2023-11-23 20:37:51,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:51,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:37:51,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:51,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:37:51,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:37:51,923 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) [2023-11-23 20:37:52,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:52,262 INFO L93 Difference]: Finished difference Result 3039 states and 4324 transitions. [2023-11-23 20:37:52,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:37:52,263 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 [2023-11-23 20:37:52,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:52,333 INFO L225 Difference]: With dead ends: 3039 [2023-11-23 20:37:52,333 INFO L226 Difference]: Without dead ends: 1895 [2023-11-23 20:37:52,337 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 [2023-11-23 20:37:52,339 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 [2023-11-23 20:37:52,339 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] [2023-11-23 20:37:52,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1895 states. [2023-11-23 20:37:52,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 1335. [2023-11-23 20:37:52,461 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) [2023-11-23 20:37:52,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1902 transitions. [2023-11-23 20:37:52,473 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1902 transitions. Word has length 64 [2023-11-23 20:37:52,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:52,474 INFO L495 AbstractCegarLoop]: Abstraction has 1335 states and 1902 transitions. [2023-11-23 20:37:52,474 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) [2023-11-23 20:37:52,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1902 transitions. [2023-11-23 20:37:52,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-23 20:37:52,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:52,480 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] [2023-11-23 20:37:52,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 20:37:52,481 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:52,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:52,481 INFO L85 PathProgramCache]: Analyzing trace with hash -351024713, now seen corresponding path program 1 times [2023-11-23 20:37:52,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:52,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251091653] [2023-11-23 20:37:52,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:52,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:52,650 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:37:52,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:52,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251091653] [2023-11-23 20:37:52,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251091653] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:52,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:52,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 20:37:52,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770056729] [2023-11-23 20:37:52,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:52,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:37:52,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:52,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:37:52,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:37:52,654 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) [2023-11-23 20:37:52,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:52,915 INFO L93 Difference]: Finished difference Result 2605 states and 3714 transitions. [2023-11-23 20:37:52,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:37:52,916 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 [2023-11-23 20:37:52,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:52,926 INFO L225 Difference]: With dead ends: 2605 [2023-11-23 20:37:52,926 INFO L226 Difference]: Without dead ends: 1293 [2023-11-23 20:37:52,931 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 [2023-11-23 20:37:52,932 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, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:52,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1054 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:37:52,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2023-11-23 20:37:53,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1293. [2023-11-23 20:37:53,072 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) [2023-11-23 20:37:53,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1828 transitions. [2023-11-23 20:37:53,084 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1828 transitions. Word has length 64 [2023-11-23 20:37:53,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:53,085 INFO L495 AbstractCegarLoop]: Abstraction has 1293 states and 1828 transitions. [2023-11-23 20:37:53,085 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) [2023-11-23 20:37:53,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1828 transitions. [2023-11-23 20:37:53,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 20:37:53,091 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:53,091 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] [2023-11-23 20:37:53,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 20:37:53,092 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:53,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:53,093 INFO L85 PathProgramCache]: Analyzing trace with hash -976717070, now seen corresponding path program 1 times [2023-11-23 20:37:53,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:53,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322686260] [2023-11-23 20:37:53,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:53,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:53,421 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:37:53,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:53,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322686260] [2023-11-23 20:37:53,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322686260] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:53,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:53,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 20:37:53,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141943520] [2023-11-23 20:37:53,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:53,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:37:53,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:53,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:37:53,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:37:53,425 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) [2023-11-23 20:37:53,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:53,786 INFO L93 Difference]: Finished difference Result 3163 states and 4481 transitions. [2023-11-23 20:37:53,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:37:53,787 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 [2023-11-23 20:37:53,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:53,802 INFO L225 Difference]: With dead ends: 3163 [2023-11-23 20:37:53,803 INFO L226 Difference]: Without dead ends: 1939 [2023-11-23 20:37:53,807 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 [2023-11-23 20:37:53,808 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, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:53,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1183 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 20:37:53,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2023-11-23 20:37:53,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1661. [2023-11-23 20:37:53,971 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) [2023-11-23 20:37:53,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2352 transitions. [2023-11-23 20:37:53,984 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2352 transitions. Word has length 104 [2023-11-23 20:37:53,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:53,986 INFO L495 AbstractCegarLoop]: Abstraction has 1661 states and 2352 transitions. [2023-11-23 20:37:53,986 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) [2023-11-23 20:37:53,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2352 transitions. [2023-11-23 20:37:53,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-23 20:37:53,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:53,995 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] [2023-11-23 20:37:53,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 20:37:53,995 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:53,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:53,996 INFO L85 PathProgramCache]: Analyzing trace with hash -678503026, now seen corresponding path program 1 times [2023-11-23 20:37:53,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:53,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026939702] [2023-11-23 20:37:53,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:53,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:54,233 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:37:54,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:54,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026939702] [2023-11-23 20:37:54,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026939702] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:54,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:54,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 20:37:54,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156222369] [2023-11-23 20:37:54,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:54,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:37:54,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:54,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:37:54,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:37:54,236 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) [2023-11-23 20:37:54,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:54,627 INFO L93 Difference]: Finished difference Result 4086 states and 5801 transitions. [2023-11-23 20:37:54,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:37:54,627 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 [2023-11-23 20:37:54,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:54,646 INFO L225 Difference]: With dead ends: 4086 [2023-11-23 20:37:54,646 INFO L226 Difference]: Without dead ends: 2494 [2023-11-23 20:37:54,651 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 [2023-11-23 20:37:54,652 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, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:54,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 1178 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 20:37:54,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2023-11-23 20:37:54,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2215. [2023-11-23 20:37:54,814 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) [2023-11-23 20:37:54,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 3136 transitions. [2023-11-23 20:37:54,831 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 3136 transitions. Word has length 107 [2023-11-23 20:37:54,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:54,832 INFO L495 AbstractCegarLoop]: Abstraction has 2215 states and 3136 transitions. [2023-11-23 20:37:54,832 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) [2023-11-23 20:37:54,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 3136 transitions. [2023-11-23 20:37:54,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-23 20:37:54,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:54,839 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] [2023-11-23 20:37:54,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 20:37:54,839 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:54,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:54,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1092347059, now seen corresponding path program 1 times [2023-11-23 20:37:54,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:54,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741261086] [2023-11-23 20:37:54,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:54,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:55,305 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:37:55,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:55,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741261086] [2023-11-23 20:37:55,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741261086] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:37:55,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574542793] [2023-11-23 20:37:55,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:55,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:37:55,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:37:55,312 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:37:55,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:37:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:55,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:37:55,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:37:55,841 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 20:37:55,841 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:37:55,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574542793] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:55,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 20:37:55,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2023-11-23 20:37:55,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296533392] [2023-11-23 20:37:55,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:55,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:37:55,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:55,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:37:55,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-23 20:37:55,844 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) [2023-11-23 20:37:56,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:56,185 INFO L93 Difference]: Finished difference Result 4375 states and 6200 transitions. [2023-11-23 20:37:56,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 20:37:56,186 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 [2023-11-23 20:37:56,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:56,202 INFO L225 Difference]: With dead ends: 4375 [2023-11-23 20:37:56,202 INFO L226 Difference]: Without dead ends: 2203 [2023-11-23 20:37:56,209 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 [2023-11-23 20:37:56,210 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 [2023-11-23 20:37:56,210 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] [2023-11-23 20:37:56,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2203 states. [2023-11-23 20:37:56,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2203 to 2203. [2023-11-23 20:37:56,344 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) [2023-11-23 20:37:56,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2203 states to 2203 states and 3114 transitions. [2023-11-23 20:37:56,356 INFO L78 Accepts]: Start accepts. Automaton has 2203 states and 3114 transitions. Word has length 112 [2023-11-23 20:37:56,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:56,357 INFO L495 AbstractCegarLoop]: Abstraction has 2203 states and 3114 transitions. [2023-11-23 20:37:56,357 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) [2023-11-23 20:37:56,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2203 states and 3114 transitions. [2023-11-23 20:37:56,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-23 20:37:56,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:56,363 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] [2023-11-23 20:37:56,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:37:56,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-23 20:37:56,601 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:56,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:56,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1085805206, now seen corresponding path program 1 times [2023-11-23 20:37:56,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:56,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381709171] [2023-11-23 20:37:56,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:56,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:56,800 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 20:37:56,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:56,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381709171] [2023-11-23 20:37:56,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381709171] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:56,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:56,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:37:56,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441679050] [2023-11-23 20:37:56,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:56,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:37:56,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:56,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:37:56,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:37:56,803 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) [2023-11-23 20:37:57,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:57,082 INFO L93 Difference]: Finished difference Result 4333 states and 6126 transitions. [2023-11-23 20:37:57,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:37:57,083 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 [2023-11-23 20:37:57,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:57,104 INFO L225 Difference]: With dead ends: 4333 [2023-11-23 20:37:57,105 INFO L226 Difference]: Without dead ends: 2199 [2023-11-23 20:37:57,112 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 [2023-11-23 20:37:57,115 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 [2023-11-23 20:37:57,116 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] [2023-11-23 20:37:57,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2199 states. [2023-11-23 20:37:57,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2199 to 2199. [2023-11-23 20:37:57,295 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) [2023-11-23 20:37:57,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2199 states to 2199 states and 3102 transitions. [2023-11-23 20:37:57,311 INFO L78 Accepts]: Start accepts. Automaton has 2199 states and 3102 transitions. Word has length 113 [2023-11-23 20:37:57,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:57,312 INFO L495 AbstractCegarLoop]: Abstraction has 2199 states and 3102 transitions. [2023-11-23 20:37:57,312 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) [2023-11-23 20:37:57,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2199 states and 3102 transitions. [2023-11-23 20:37:57,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-23 20:37:57,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:57,322 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] [2023-11-23 20:37:57,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 20:37:57,323 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:57,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:57,324 INFO L85 PathProgramCache]: Analyzing trace with hash -688850749, now seen corresponding path program 1 times [2023-11-23 20:37:57,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:57,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659425092] [2023-11-23 20:37:57,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:57,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:57,871 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:37:57,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:57,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659425092] [2023-11-23 20:37:57,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659425092] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:37:57,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921001368] [2023-11-23 20:37:57,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:57,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:37:57,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:37:57,877 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:37:57,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 20:37:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:58,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:37:58,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:37:58,549 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:37:58,549 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:37:58,946 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:37:58,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921001368] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 20:37:58,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 20:37:58,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2023-11-23 20:37:58,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450323042] [2023-11-23 20:37:58,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:58,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:37:58,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:58,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:37:58,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-23 20:37:58,950 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) [2023-11-23 20:38:00,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:00,513 INFO L93 Difference]: Finished difference Result 7788 states and 11021 transitions. [2023-11-23 20:38:00,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:38:00,514 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 [2023-11-23 20:38:00,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:00,564 INFO L225 Difference]: With dead ends: 7788 [2023-11-23 20:38:00,565 INFO L226 Difference]: Without dead ends: 7764 [2023-11-23 20:38:00,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 220 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-11-23 20:38:00,570 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 [2023-11-23 20:38:00,570 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] [2023-11-23 20:38:00,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7764 states. [2023-11-23 20:38:01,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7764 to 7245. [2023-11-23 20:38:01,112 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) [2023-11-23 20:38:01,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7245 states to 7245 states and 10299 transitions. [2023-11-23 20:38:01,158 INFO L78 Accepts]: Start accepts. Automaton has 7245 states and 10299 transitions. Word has length 114 [2023-11-23 20:38:01,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:01,159 INFO L495 AbstractCegarLoop]: Abstraction has 7245 states and 10299 transitions. [2023-11-23 20:38:01,160 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) [2023-11-23 20:38:01,160 INFO L276 IsEmpty]: Start isEmpty. Operand 7245 states and 10299 transitions. [2023-11-23 20:38:01,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-23 20:38:01,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:01,180 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] [2023-11-23 20:38:01,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:38:01,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 20:38:01,389 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:01,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:01,389 INFO L85 PathProgramCache]: Analyzing trace with hash -838375391, now seen corresponding path program 1 times [2023-11-23 20:38:01,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:01,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320479341] [2023-11-23 20:38:01,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:01,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:01,785 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 20:38:01,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:01,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320479341] [2023-11-23 20:38:01,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320479341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:01,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:01,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 20:38:01,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610044920] [2023-11-23 20:38:01,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:01,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:38:01,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:01,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:38:01,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:38:01,788 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) [2023-11-23 20:38:02,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:02,325 INFO L93 Difference]: Finished difference Result 13409 states and 19126 transitions. [2023-11-23 20:38:02,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:38:02,326 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 [2023-11-23 20:38:02,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:02,398 INFO L225 Difference]: With dead ends: 13409 [2023-11-23 20:38:02,399 INFO L226 Difference]: Without dead ends: 6119 [2023-11-23 20:38:02,420 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 [2023-11-23 20:38:02,421 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, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:02,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 844 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:38:02,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6119 states. [2023-11-23 20:38:02,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6119 to 5721. [2023-11-23 20:38:02,885 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) [2023-11-23 20:38:02,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5721 states to 5721 states and 8070 transitions. [2023-11-23 20:38:02,915 INFO L78 Accepts]: Start accepts. Automaton has 5721 states and 8070 transitions. Word has length 121 [2023-11-23 20:38:02,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:02,915 INFO L495 AbstractCegarLoop]: Abstraction has 5721 states and 8070 transitions. [2023-11-23 20:38:02,916 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) [2023-11-23 20:38:02,916 INFO L276 IsEmpty]: Start isEmpty. Operand 5721 states and 8070 transitions. [2023-11-23 20:38:02,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-23 20:38:02,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:02,932 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] [2023-11-23 20:38:02,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 20:38:02,932 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:02,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:02,933 INFO L85 PathProgramCache]: Analyzing trace with hash 810060079, now seen corresponding path program 1 times [2023-11-23 20:38:02,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:02,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46782465] [2023-11-23 20:38:02,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:02,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:03,450 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 20:38:03,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:03,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46782465] [2023-11-23 20:38:03,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46782465] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:38:03,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090924491] [2023-11-23 20:38:03,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:03,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:38:03,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:38:03,453 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:38:03,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 20:38:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:03,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:38:03,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:38:04,116 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 20:38:04,116 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:38:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 20:38:04,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090924491] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 20:38:04,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 20:38:04,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2023-11-23 20:38:04,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731892414] [2023-11-23 20:38:04,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:04,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:38:04,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:04,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:38:04,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-23 20:38:04,429 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) [2023-11-23 20:38:05,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:05,976 INFO L93 Difference]: Finished difference Result 19683 states and 27905 transitions. [2023-11-23 20:38:05,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:38:05,977 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 [2023-11-23 20:38:05,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:06,053 INFO L225 Difference]: With dead ends: 19683 [2023-11-23 20:38:06,053 INFO L226 Difference]: Without dead ends: 19659 [2023-11-23 20:38:06,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 232 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-11-23 20:38:06,065 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 673 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:06,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1492 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 20:38:06,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19659 states. [2023-11-23 20:38:07,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19659 to 17101. [2023-11-23 20:38:07,440 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) [2023-11-23 20:38:07,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17101 states to 17101 states and 24299 transitions. [2023-11-23 20:38:07,516 INFO L78 Accepts]: Start accepts. Automaton has 17101 states and 24299 transitions. Word has length 120 [2023-11-23 20:38:07,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:07,517 INFO L495 AbstractCegarLoop]: Abstraction has 17101 states and 24299 transitions. [2023-11-23 20:38:07,518 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) [2023-11-23 20:38:07,519 INFO L276 IsEmpty]: Start isEmpty. Operand 17101 states and 24299 transitions. [2023-11-23 20:38:07,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-23 20:38:07,550 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:07,550 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] [2023-11-23 20:38:07,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 20:38:07,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 20:38:07,775 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:07,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:07,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1057759419, now seen corresponding path program 1 times [2023-11-23 20:38:07,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:07,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117393233] [2023-11-23 20:38:07,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:07,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:08,000 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-23 20:38:08,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:08,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117393233] [2023-11-23 20:38:08,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117393233] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:08,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:08,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:08,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946529730] [2023-11-23 20:38:08,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:08,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:38:08,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:08,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:38:08,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:08,003 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) [2023-11-23 20:38:09,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:09,171 INFO L93 Difference]: Finished difference Result 34149 states and 48540 transitions. [2023-11-23 20:38:09,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:38:09,172 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 [2023-11-23 20:38:09,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:09,248 INFO L225 Difference]: With dead ends: 34149 [2023-11-23 20:38:09,249 INFO L226 Difference]: Without dead ends: 17177 [2023-11-23 20:38:09,286 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 [2023-11-23 20:38:09,287 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 36 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 3 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, 3 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:09,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 622 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:38:09,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17177 states. [2023-11-23 20:38:10,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17177 to 17103. [2023-11-23 20:38:10,401 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) [2023-11-23 20:38:10,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17103 states to 17103 states and 24301 transitions. [2023-11-23 20:38:10,499 INFO L78 Accepts]: Start accepts. Automaton has 17103 states and 24301 transitions. Word has length 121 [2023-11-23 20:38:10,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:10,499 INFO L495 AbstractCegarLoop]: Abstraction has 17103 states and 24301 transitions. [2023-11-23 20:38:10,500 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) [2023-11-23 20:38:10,500 INFO L276 IsEmpty]: Start isEmpty. Operand 17103 states and 24301 transitions. [2023-11-23 20:38:10,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-23 20:38:10,539 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:10,539 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] [2023-11-23 20:38:10,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 20:38:10,540 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:10,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:10,541 INFO L85 PathProgramCache]: Analyzing trace with hash 697384134, now seen corresponding path program 1 times [2023-11-23 20:38:10,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:10,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700624185] [2023-11-23 20:38:10,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:10,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:11,159 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-23 20:38:11,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:11,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700624185] [2023-11-23 20:38:11,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700624185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:11,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:11,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:38:11,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470895703] [2023-11-23 20:38:11,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:11,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:38:11,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:11,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:38:11,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:38:11,163 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) [2023-11-23 20:38:11,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:11,518 INFO L93 Difference]: Finished difference Result 17219 states and 24443 transitions. [2023-11-23 20:38:11,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 20:38:11,519 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 [2023-11-23 20:38:11,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:11,520 INFO L225 Difference]: With dead ends: 17219 [2023-11-23 20:38:11,520 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 20:38:11,561 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 [2023-11-23 20:38:11,562 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 [2023-11-23 20:38:11,563 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] [2023-11-23 20:38:11,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 20:38:11,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 20:38:11,564 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) [2023-11-23 20:38:11,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 20:38:11,568 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 122 [2023-11-23 20:38:11,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:11,568 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 20:38:11,569 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) [2023-11-23 20:38:11,569 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 20:38:11,569 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:38:11,572 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:38:11,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 20:38:11,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 20:38:13,694 INFO L899 garLoopResultBuilder]: For program point _torture_stop_kthreadEXIT(lines 2972 2974) no Hoare annotation was computed. [2023-11-23 20:38:13,695 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2972 2974) the Hoare annotation is: true [2023-11-23 20:38:13,695 INFO L899 garLoopResultBuilder]: For program point kfreeEXIT(lines 3078 3080) no Hoare annotation was computed. [2023-11-23 20:38:13,695 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3078 3080) the Hoare annotation is: true [2023-11-23 20:38:13,695 INFO L899 garLoopResultBuilder]: For program point torture_lock_busted_write_delayEXIT(lines 2087 2112) no Hoare annotation was computed. [2023-11-23 20:38:13,695 INFO L902 garLoopResultBuilder]: At program point ldv_22671(lines 2096 2108) the Hoare annotation is: true [2023-11-23 20:38:13,696 INFO L899 garLoopResultBuilder]: For program point L2104(lines 2104 2107) no Hoare annotation was computed. [2023-11-23 20:38:13,696 INFO L899 garLoopResultBuilder]: For program point L2100(lines 2096 2108) no Hoare annotation was computed. [2023-11-23 20:38:13,696 INFO L899 garLoopResultBuilder]: For program point L2096(lines 2096 2109) no Hoare annotation was computed. [2023-11-23 20:38:13,696 INFO L899 garLoopResultBuilder]: For program point L2095-1(line 2095) no Hoare annotation was computed. [2023-11-23 20:38:13,696 INFO L899 garLoopResultBuilder]: For program point L2096-2(lines 2087 2112) no Hoare annotation was computed. [2023-11-23 20:38:13,696 INFO L902 garLoopResultBuilder]: At program point L2095(line 2095) the Hoare annotation is: true [2023-11-23 20:38:13,696 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2087 2112) the Hoare annotation is: true [2023-11-23 20:38:13,697 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3012 3014) the Hoare annotation is: true [2023-11-23 20:38:13,697 INFO L899 garLoopResultBuilder]: For program point printkEXIT(lines 3012 3014) no Hoare annotation was computed. [2023-11-23 20:38:13,697 INFO L899 garLoopResultBuilder]: For program point L2865-1(line 2865) no Hoare annotation was computed. [2023-11-23 20:38:13,697 INFO L899 garLoopResultBuilder]: For program point torture_lock_spin_write_unlock_irqEXIT(lines 2182 2188) no Hoare annotation was computed. [2023-11-23 20:38:13,697 INFO L902 garLoopResultBuilder]: At program point L2865(line 2865) the Hoare annotation is: true [2023-11-23 20:38:13,697 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2182 2188) the Hoare annotation is: true [2023-11-23 20:38:13,697 INFO L899 garLoopResultBuilder]: For program point __const_udelayEXIT(lines 2953 2955) no Hoare annotation was computed. [2023-11-23 20:38:13,697 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2953 2955) the Hoare annotation is: true [2023-11-23 20:38:13,698 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 2009 2015) the Hoare annotation is: true [2023-11-23 20:38:13,698 INFO L899 garLoopResultBuilder]: For program point ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2013) no Hoare annotation was computed. [2023-11-23 20:38:13,698 INFO L899 garLoopResultBuilder]: For program point ldv_errorEXIT(lines 2009 2015) no Hoare annotation was computed. [2023-11-23 20:38:13,698 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2081 2086) the Hoare annotation is: true [2023-11-23 20:38:13,698 INFO L899 garLoopResultBuilder]: For program point torture_lock_busted_write_lockEXIT(lines 2081 2086) no Hoare annotation was computed. [2023-11-23 20:38:13,699 INFO L902 garLoopResultBuilder]: At program point L1937(line 1937) the Hoare annotation is: true [2023-11-23 20:38:13,699 INFO L899 garLoopResultBuilder]: For program point L1937-1(line 1937) no Hoare annotation was computed. [2023-11-23 20:38:13,699 INFO L902 garLoopResultBuilder]: At program point L2874(line 2874) the Hoare annotation is: true [2023-11-23 20:38:13,699 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2871 2878) the Hoare annotation is: true [2023-11-23 20:38:13,699 INFO L899 garLoopResultBuilder]: For program point L2874-1(line 2874) no Hoare annotation was computed. [2023-11-23 20:38:13,699 INFO L899 garLoopResultBuilder]: For program point kmallocEXIT(lines 2871 2878) no Hoare annotation was computed. [2023-11-23 20:38:13,700 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3056 3058) the Hoare annotation is: true [2023-11-23 20:38:13,700 INFO L899 garLoopResultBuilder]: For program point torture_randomEXIT(lines 3056 3058) no Hoare annotation was computed. [2023-11-23 20:38:13,700 INFO L902 garLoopResultBuilder]: At program point LDV_STOP(lines 2016 2022) the Hoare annotation is: true [2023-11-23 20:38:13,700 INFO L899 garLoopResultBuilder]: For program point ldv_stopEXIT(lines 2016 2022) no Hoare annotation was computed. [2023-11-23 20:38:13,700 INFO L899 garLoopResultBuilder]: For program point lock_torture_stats_printFINAL(lines 2314 2333) no Hoare annotation was computed. [2023-11-23 20:38:13,700 INFO L899 garLoopResultBuilder]: For program point L2329-1(line 2329) no Hoare annotation was computed. [2023-11-23 20:38:13,701 INFO L902 garLoopResultBuilder]: At program point L2329(line 2329) the Hoare annotation is: true [2023-11-23 20:38:13,701 INFO L899 garLoopResultBuilder]: For program point L2323(lines 2323 2327) no Hoare annotation was computed. [2023-11-23 20:38:13,701 INFO L899 garLoopResultBuilder]: For program point L2321-1(line 2321) no Hoare annotation was computed. [2023-11-23 20:38:13,701 INFO L902 garLoopResultBuilder]: At program point L2321(line 2321) the Hoare annotation is: true [2023-11-23 20:38:13,701 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2314 2333) the Hoare annotation is: true [2023-11-23 20:38:13,701 INFO L899 garLoopResultBuilder]: For program point $Ultimate##13(lines 2297 2300) no Hoare annotation was computed. [2023-11-23 20:38:13,702 INFO L899 garLoopResultBuilder]: For program point lock_torture_stats_printEXIT(lines 2314 2333) no Hoare annotation was computed. [2023-11-23 20:38:13,702 INFO L902 garLoopResultBuilder]: At program point L2330(line 2330) the Hoare annotation is: true [2023-11-23 20:38:13,702 INFO L902 garLoopResultBuilder]: At program point L2324(line 2324) the Hoare annotation is: true [2023-11-23 20:38:13,702 INFO L899 garLoopResultBuilder]: For program point L2324-1(line 2324) no Hoare annotation was computed. [2023-11-23 20:38:13,702 INFO L902 garLoopResultBuilder]: At program point torture_lock_busted_write_unlockFINAL(lines 2113 2118) the Hoare annotation is: true [2023-11-23 20:38:13,703 INFO L899 garLoopResultBuilder]: For program point torture_lock_busted_write_unlockEXIT(lines 2113 2118) no Hoare annotation was computed. [2023-11-23 20:38:13,703 INFO L899 garLoopResultBuilder]: For program point lock_torture_print_module_parmsEXIT(lines 2361 2370) no Hoare annotation was computed. [2023-11-23 20:38:13,703 INFO L899 garLoopResultBuilder]: For program point L2365-1(lines 2365 2367) no Hoare annotation was computed. [2023-11-23 20:38:13,703 INFO L902 garLoopResultBuilder]: At program point L2365(lines 2365 2367) the Hoare annotation is: true [2023-11-23 20:38:13,703 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2361 2370) the Hoare annotation is: true [2023-11-23 20:38:13,703 INFO L899 garLoopResultBuilder]: For program point L2141-1(line 2141) no Hoare annotation was computed. [2023-11-23 20:38:13,704 INFO L902 garLoopResultBuilder]: At program point L2141(line 2141) the Hoare annotation is: true [2023-11-23 20:38:13,704 INFO L899 garLoopResultBuilder]: For program point torture_spin_lock_write_delayEXIT(lines 2130 2163) no Hoare annotation was computed. [2023-11-23 20:38:13,704 INFO L899 garLoopResultBuilder]: For program point L2156(line 2156) no Hoare annotation was computed. [2023-11-23 20:38:13,704 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2130 2163) the Hoare annotation is: true [2023-11-23 20:38:13,704 INFO L899 garLoopResultBuilder]: For program point L2150(lines 2150 2153) no Hoare annotation was computed. [2023-11-23 20:38:13,704 INFO L899 garLoopResultBuilder]: For program point L2146(lines 2142 2154) no Hoare annotation was computed. [2023-11-23 20:38:13,705 INFO L899 garLoopResultBuilder]: For program point L2142(lines 2142 2155) no Hoare annotation was computed. [2023-11-23 20:38:13,705 INFO L902 garLoopResultBuilder]: At program point L2142-2(lines 2142 2155) the Hoare annotation is: true [2023-11-23 20:38:13,705 INFO L902 garLoopResultBuilder]: At program point ldv_22689(lines 2142 2154) the Hoare annotation is: true [2023-11-23 20:38:13,705 INFO L899 garLoopResultBuilder]: For program point L2401(lines 2401 2410) no Hoare annotation was computed. [2023-11-23 20:38:13,705 INFO L899 garLoopResultBuilder]: For program point L2399(line 2399) no Hoare annotation was computed. [2023-11-23 20:38:13,706 INFO L899 garLoopResultBuilder]: For program point L2387(line 2387) no Hoare annotation was computed. [2023-11-23 20:38:13,706 INFO L899 garLoopResultBuilder]: For program point L2383(lines 2383 2397) no Hoare annotation was computed. [2023-11-23 20:38:13,706 INFO L902 garLoopResultBuilder]: At program point L2383-2(lines 2383 2397) the Hoare annotation is: true [2023-11-23 20:38:13,706 INFO L899 garLoopResultBuilder]: For program point L2379(lines 2379 2382) no Hoare annotation was computed. [2023-11-23 20:38:13,706 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2371 2413) the Hoare annotation is: true [2023-11-23 20:38:13,706 INFO L902 garLoopResultBuilder]: At program point L2408(line 2408) the Hoare annotation is: true [2023-11-23 20:38:13,707 INFO L902 garLoopResultBuilder]: At program point L2406(line 2406) the Hoare annotation is: true [2023-11-23 20:38:13,707 INFO L899 garLoopResultBuilder]: For program point lock_torture_cleanupEXIT(lines 2371 2413) no Hoare annotation was computed. [2023-11-23 20:38:13,707 INFO L899 garLoopResultBuilder]: For program point L2408-1(lines 2371 2413) no Hoare annotation was computed. [2023-11-23 20:38:13,707 INFO L902 garLoopResultBuilder]: At program point L2402(line 2402) the Hoare annotation is: true [2023-11-23 20:38:13,707 INFO L899 garLoopResultBuilder]: For program point $Ultimate##6(lines 2390 2393) no Hoare annotation was computed. [2023-11-23 20:38:13,707 INFO L902 garLoopResultBuilder]: At program point L2398(line 2398) the Hoare annotation is: true [2023-11-23 20:38:13,708 INFO L902 garLoopResultBuilder]: At program point L2394(line 2394) the Hoare annotation is: true [2023-11-23 20:38:13,708 INFO L899 garLoopResultBuilder]: For program point L2394-1(line 2394) no Hoare annotation was computed. [2023-11-23 20:38:13,708 INFO L899 garLoopResultBuilder]: For program point L2405(lines 2405 2409) no Hoare annotation was computed. [2023-11-23 20:38:13,708 INFO L902 garLoopResultBuilder]: At program point ldv_22745(lines 2383 2396) the Hoare annotation is: true [2023-11-23 20:38:13,708 INFO L902 garLoopResultBuilder]: At program point torture_init_endFINAL(lines 3037 3039) the Hoare annotation is: true [2023-11-23 20:38:13,708 INFO L899 garLoopResultBuilder]: For program point torture_init_endEXIT(lines 3037 3039) no Hoare annotation was computed. [2023-11-23 20:38:13,709 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1956 1958) the Hoare annotation is: true [2023-11-23 20:38:13,709 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 1956 1958) no Hoare annotation was computed. [2023-11-23 20:38:13,709 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2929 2935) the Hoare annotation is: true [2023-11-23 20:38:13,709 INFO L899 garLoopResultBuilder]: For program point ldv_spin_unlockEXIT(lines 2929 2935) no Hoare annotation was computed. [2023-11-23 20:38:13,709 INFO L899 garLoopResultBuilder]: For program point ldv_spin_lockEXIT(lines 2922 2928) no Hoare annotation was computed. [2023-11-23 20:38:13,709 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2922 2928) the Hoare annotation is: true [2023-11-23 20:38:13,710 INFO L899 garLoopResultBuilder]: For program point L2177-1(line 2177) no Hoare annotation was computed. [2023-11-23 20:38:13,710 INFO L902 garLoopResultBuilder]: At program point L2177(line 2177) the Hoare annotation is: true [2023-11-23 20:38:13,710 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2173 2181) the Hoare annotation is: true [2023-11-23 20:38:13,710 INFO L899 garLoopResultBuilder]: For program point torture_spin_lock_write_lock_irqEXIT(lines 2173 2181) no Hoare annotation was computed. [2023-11-23 20:38:13,710 INFO L899 garLoopResultBuilder]: For program point L1966(lines 1966 1973) no Hoare annotation was computed. [2023-11-23 20:38:13,710 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1959 1975) the Hoare annotation is: true [2023-11-23 20:38:13,711 INFO L899 garLoopResultBuilder]: For program point ldv_mallocFINAL(lines 1959 1975) no Hoare annotation was computed. [2023-11-23 20:38:13,711 INFO L902 garLoopResultBuilder]: At program point L1971(line 1971) the Hoare annotation is: true [2023-11-23 20:38:13,711 INFO L899 garLoopResultBuilder]: For program point L1971-1(line 1971) no Hoare annotation was computed. [2023-11-23 20:38:13,711 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 1959 1975) no Hoare annotation was computed. [2023-11-23 20:38:13,711 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2969 2971) the Hoare annotation is: true [2023-11-23 20:38:13,711 INFO L899 garLoopResultBuilder]: For program point _torture_create_kthreadEXIT(lines 2969 2971) no Hoare annotation was computed. [2023-11-23 20:38:13,712 INFO L899 garLoopResultBuilder]: For program point L2849-1(line 2849) no Hoare annotation was computed. [2023-11-23 20:38:13,712 INFO L902 garLoopResultBuilder]: At program point L2849(line 2849) the Hoare annotation is: true [2023-11-23 20:38:13,712 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2123 2129) the Hoare annotation is: true [2023-11-23 20:38:13,712 INFO L899 garLoopResultBuilder]: For program point torture_spin_lock_write_lockEXIT(lines 2123 2129) no Hoare annotation was computed. [2023-11-23 20:38:13,712 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))) [2023-11-23 20:38:13,713 INFO L899 garLoopResultBuilder]: For program point L-1-2(line -1) no Hoare annotation was computed. [2023-11-23 20:38:13,713 INFO L899 garLoopResultBuilder]: For program point ##fun~~TO~VOIDEXIT(line -1) no Hoare annotation was computed. [2023-11-23 20:38:13,713 INFO L902 garLoopResultBuilder]: At program point L-1-3(line -1) the Hoare annotation is: true [2023-11-23 20:38:13,713 INFO L899 garLoopResultBuilder]: For program point L-1-5(line -1) no Hoare annotation was computed. [2023-11-23 20:38:13,713 INFO L902 garLoopResultBuilder]: At program point L-1-6(line -1) the Hoare annotation is: true [2023-11-23 20:38:13,714 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))) [2023-11-23 20:38:13,714 INFO L899 garLoopResultBuilder]: For program point L-1-9(line -1) no Hoare annotation was computed. [2023-11-23 20:38:13,714 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))) [2023-11-23 20:38:13,714 INFO L899 garLoopResultBuilder]: For program point L1983(lines 1983 1990) no Hoare annotation was computed. [2023-11-23 20:38:13,714 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1976 1992) the Hoare annotation is: true [2023-11-23 20:38:13,714 INFO L899 garLoopResultBuilder]: For program point ldv_zallocEXIT(lines 1976 1992) no Hoare annotation was computed. [2023-11-23 20:38:13,715 INFO L902 garLoopResultBuilder]: At program point L1988(line 1988) the Hoare annotation is: true [2023-11-23 20:38:13,715 INFO L899 garLoopResultBuilder]: For program point ldv_zallocFINAL(lines 1976 1992) no Hoare annotation was computed. [2023-11-23 20:38:13,715 INFO L899 garLoopResultBuilder]: For program point L1988-1(line 1988) no Hoare annotation was computed. [2023-11-23 20:38:13,715 INFO L899 garLoopResultBuilder]: For program point torture_spin_lock_write_unlockEXIT(lines 2164 2170) no Hoare annotation was computed. [2023-11-23 20:38:13,715 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2164 2170) the Hoare annotation is: true [2023-11-23 20:38:13,715 INFO L899 garLoopResultBuilder]: For program point L2857-1(line 2857) no Hoare annotation was computed. [2023-11-23 20:38:13,716 INFO L902 garLoopResultBuilder]: At program point L2857(line 2857) the Hoare annotation is: true [2023-11-23 20:38:13,716 INFO L899 garLoopResultBuilder]: For program point L2744(lines 2744 2748) no Hoare annotation was computed. [2023-11-23 20:38:13,716 INFO L899 garLoopResultBuilder]: For program point L2744-2(lines 2723 2773) no Hoare annotation was computed. [2023-11-23 20:38:13,716 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)) [2023-11-23 20:38:13,716 INFO L899 garLoopResultBuilder]: For program point L2612-1(line 2612) no Hoare annotation was computed. [2023-11-23 20:38:13,716 INFO L899 garLoopResultBuilder]: For program point L2579(line 2579) no Hoare annotation was computed. [2023-11-23 20:38:13,717 INFO L899 garLoopResultBuilder]: For program point L2778(line 2778) no Hoare annotation was computed. [2023-11-23 20:38:13,717 INFO L899 garLoopResultBuilder]: For program point L2745-1(line 2745) no Hoare annotation was computed. [2023-11-23 20:38:13,717 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)))) [2023-11-23 20:38:13,717 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)) [2023-11-23 20:38:13,717 INFO L899 garLoopResultBuilder]: For program point L2779(lines 2779 2834) no Hoare annotation was computed. [2023-11-23 20:38:13,717 INFO L899 garLoopResultBuilder]: For program point L2713(line 2713) no Hoare annotation was computed. [2023-11-23 20:38:13,718 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)) [2023-11-23 20:38:13,718 INFO L899 garLoopResultBuilder]: For program point L2614-1(line 2614) no Hoare annotation was computed. [2023-11-23 20:38:13,718 INFO L899 garLoopResultBuilder]: For program point L2813(line 2813) no Hoare annotation was computed. [2023-11-23 20:38:13,718 INFO L902 garLoopResultBuilder]: At program point L2714(line 2714) the Hoare annotation is: true [2023-11-23 20:38:13,718 INFO L899 garLoopResultBuilder]: For program point L2648(line 2648) no Hoare annotation was computed. [2023-11-23 20:38:13,719 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)) [2023-11-23 20:38:13,719 INFO L899 garLoopResultBuilder]: For program point L2516-1(lines 2425 2585) no Hoare annotation was computed. [2023-11-23 20:38:13,719 INFO L899 garLoopResultBuilder]: For program point L2781(lines 2781 2831) no Hoare annotation was computed. [2023-11-23 20:38:13,719 INFO L899 garLoopResultBuilder]: For program point L2649(lines 2649 2653) no Hoare annotation was computed. [2023-11-23 20:38:13,719 INFO L899 garLoopResultBuilder]: For program point L2649-2(lines 2628 2678) no Hoare annotation was computed. [2023-11-23 20:38:13,719 INFO L899 garLoopResultBuilder]: For program point L2583(line 2583) no Hoare annotation was computed. [2023-11-23 20:38:13,719 INFO L899 garLoopResultBuilder]: For program point L2484(line 2484) no Hoare annotation was computed. [2023-11-23 20:38:13,720 INFO L899 garLoopResultBuilder]: For program point L2782(line 2782) no Hoare annotation was computed. [2023-11-23 20:38:13,720 INFO L895 garLoopResultBuilder]: At program point L2650(line 2650) the Hoare annotation is: false [2023-11-23 20:38:13,720 INFO L899 garLoopResultBuilder]: For program point L2683(line 2683) no Hoare annotation was computed. [2023-11-23 20:38:13,720 INFO L899 garLoopResultBuilder]: For program point L2650-1(line 2650) no Hoare annotation was computed. [2023-11-23 20:38:13,720 INFO L899 garLoopResultBuilder]: For program point L2518(lines 2518 2521) no Hoare annotation was computed. [2023-11-23 20:38:13,720 INFO L895 garLoopResultBuilder]: At program point lock_torture_init_ldv_22770#1(lines 2425 2585) the Hoare annotation is: false [2023-11-23 20:38:13,721 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)))) [2023-11-23 20:38:13,721 INFO L899 garLoopResultBuilder]: For program point L2783(lines 2783 2787) no Hoare annotation was computed. [2023-11-23 20:38:13,721 INFO L899 garLoopResultBuilder]: For program point L2684(lines 2684 2718) no Hoare annotation was computed. [2023-11-23 20:38:13,721 INFO L899 garLoopResultBuilder]: For program point L2750-1(line 2750) no Hoare annotation was computed. [2023-11-23 20:38:13,721 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)) [2023-11-23 20:38:13,722 INFO L899 garLoopResultBuilder]: For program point L2486-1(line 2486) no Hoare annotation was computed. [2023-11-23 20:38:13,722 INFO L899 garLoopResultBuilder]: For program point L2883-1(line 2883) no Hoare annotation was computed. [2023-11-23 20:38:13,722 INFO L895 garLoopResultBuilder]: At program point L2883(line 2883) the Hoare annotation is: false [2023-11-23 20:38:13,722 INFO L895 garLoopResultBuilder]: At program point L2784(line 2784) the Hoare annotation is: false [2023-11-23 20:38:13,722 INFO L899 garLoopResultBuilder]: For program point L2784-1(line 2784) no Hoare annotation was computed. [2023-11-23 20:38:13,722 INFO L899 garLoopResultBuilder]: For program point L2686(lines 2686 2715) no Hoare annotation was computed. [2023-11-23 20:38:13,723 INFO L899 garLoopResultBuilder]: For program point L2554(lines 2554 2557) no Hoare annotation was computed. [2023-11-23 20:38:13,723 INFO L899 garLoopResultBuilder]: For program point L2488(lines 2488 2496) no Hoare annotation was computed. [2023-11-23 20:38:13,723 INFO L899 garLoopResultBuilder]: For program point L2720(line 2720) no Hoare annotation was computed. [2023-11-23 20:38:13,723 INFO L899 garLoopResultBuilder]: For program point L2687(line 2687) no Hoare annotation was computed. [2023-11-23 20:38:13,723 INFO L899 garLoopResultBuilder]: For program point L2489(lines 2489 2492) no Hoare annotation was computed. [2023-11-23 20:38:13,724 INFO L899 garLoopResultBuilder]: For program point L2489-2(lines 2489 2492) no Hoare annotation was computed. [2023-11-23 20:38:13,724 INFO L899 garLoopResultBuilder]: For program point L2688(lines 2688 2693) no Hoare annotation was computed. [2023-11-23 20:38:13,724 INFO L899 garLoopResultBuilder]: For program point L2721(lines 2721 2776) no Hoare annotation was computed. [2023-11-23 20:38:13,724 INFO L899 garLoopResultBuilder]: For program point L2622(lines 2609 2844) no Hoare annotation was computed. [2023-11-23 20:38:13,724 INFO L899 garLoopResultBuilder]: For program point L2655-1(line 2655) no Hoare annotation was computed. [2023-11-23 20:38:13,724 INFO L895 garLoopResultBuilder]: At program point L2655(line 2655) the Hoare annotation is: false [2023-11-23 20:38:13,725 INFO L895 garLoopResultBuilder]: At program point L2490(line 2490) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_spin~0 0)) [2023-11-23 20:38:13,725 INFO L899 garLoopResultBuilder]: For program point L2457-1(line 2457) no Hoare annotation was computed. [2023-11-23 20:38:13,725 INFO L895 garLoopResultBuilder]: At program point L2457(line 2457) the Hoare annotation is: (= ~ldv_state_variable_0~0 1) [2023-11-23 20:38:13,725 INFO L899 garLoopResultBuilder]: For program point L2490-1(line 2490) no Hoare annotation was computed. [2023-11-23 20:38:13,725 INFO L899 garLoopResultBuilder]: For program point L2821(line 2821) no Hoare annotation was computed. [2023-11-23 20:38:13,725 INFO L899 garLoopResultBuilder]: For program point L2755(line 2755) no Hoare annotation was computed. [2023-11-23 20:38:13,726 INFO L899 garLoopResultBuilder]: For program point L2689-1(line 2689) no Hoare annotation was computed. [2023-11-23 20:38:13,726 INFO L895 garLoopResultBuilder]: At program point L2689(line 2689) the Hoare annotation is: (= ~ldv_spin~0 0) [2023-11-23 20:38:13,726 INFO L899 garLoopResultBuilder]: For program point main_ldv_final#1(lines 2609 2844) no Hoare annotation was computed. [2023-11-23 20:38:13,726 INFO L895 garLoopResultBuilder]: At program point L2458(line 2458) the Hoare annotation is: (= ~ldv_state_variable_0~0 1) [2023-11-23 20:38:13,726 INFO L899 garLoopResultBuilder]: For program point L2524-1(lines 2425 2585) no Hoare annotation was computed. [2023-11-23 20:38:13,726 INFO L899 garLoopResultBuilder]: For program point L2458-1(line 2458) no Hoare annotation was computed. [2023-11-23 20:38:13,726 INFO L899 garLoopResultBuilder]: For program point L2789(line 2789) no Hoare annotation was computed. [2023-11-23 20:38:13,727 INFO L899 garLoopResultBuilder]: For program point L2723(lines 2723 2773) no Hoare annotation was computed. [2023-11-23 20:38:13,727 INFO L899 garLoopResultBuilder]: For program point L2624(lines 2624 2838) no Hoare annotation was computed. [2023-11-23 20:38:13,727 INFO L899 garLoopResultBuilder]: For program point L2558(lines 2558 2561) no Hoare annotation was computed. [2023-11-23 20:38:13,727 INFO L899 garLoopResultBuilder]: For program point L2790(lines 2790 2794) no Hoare annotation was computed. [2023-11-23 20:38:13,727 INFO L899 garLoopResultBuilder]: For program point L2724(line 2724) no Hoare annotation was computed. [2023-11-23 20:38:13,727 INFO L899 garLoopResultBuilder]: For program point L2790-2(lines 2781 2831) no Hoare annotation was computed. [2023-11-23 20:38:13,728 INFO L899 garLoopResultBuilder]: For program point L2625(line 2625) no Hoare annotation was computed. [2023-11-23 20:38:13,728 INFO L899 garLoopResultBuilder]: For program point L2526(lines 2526 2529) no Hoare annotation was computed. [2023-11-23 20:38:13,728 INFO L899 garLoopResultBuilder]: For program point L2791-1(line 2791) no Hoare annotation was computed. [2023-11-23 20:38:13,728 INFO L895 garLoopResultBuilder]: At program point L2791(line 2791) the Hoare annotation is: false [2023-11-23 20:38:13,728 INFO L899 garLoopResultBuilder]: For program point L2725(lines 2725 2729) no Hoare annotation was computed. [2023-11-23 20:38:13,728 INFO L899 garLoopResultBuilder]: For program point L2626(lines 2626 2681) no Hoare annotation was computed. [2023-11-23 20:38:13,729 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)))) [2023-11-23 20:38:13,729 INFO L899 garLoopResultBuilder]: For program point L2660(line 2660) no Hoare annotation was computed. [2023-11-23 20:38:13,729 INFO L899 garLoopResultBuilder]: For program point L2726-1(line 2726) no Hoare annotation was computed. [2023-11-23 20:38:13,729 INFO L895 garLoopResultBuilder]: At program point L2462(line 2462) the Hoare annotation is: (= ~ldv_state_variable_0~0 1) [2023-11-23 20:38:13,729 INFO L899 garLoopResultBuilder]: For program point L2462-1(line 2462) no Hoare annotation was computed. [2023-11-23 20:38:13,729 INFO L899 garLoopResultBuilder]: For program point L2628(lines 2628 2678) no Hoare annotation was computed. [2023-11-23 20:38:13,730 INFO L899 garLoopResultBuilder]: For program point L2695(line 2695) no Hoare annotation was computed. [2023-11-23 20:38:13,730 INFO L899 garLoopResultBuilder]: For program point L2629(line 2629) no Hoare annotation was computed. [2023-11-23 20:38:13,730 INFO L899 garLoopResultBuilder]: For program point L2431-2(lines 2425 2585) no Hoare annotation was computed. [2023-11-23 20:38:13,730 INFO L899 garLoopResultBuilder]: For program point L2696(lines 2696 2711) no Hoare annotation was computed. [2023-11-23 20:38:13,730 INFO L899 garLoopResultBuilder]: For program point L2630(lines 2630 2634) no Hoare annotation was computed. [2023-11-23 20:38:13,730 INFO L899 garLoopResultBuilder]: For program point lock_torture_init_returnLabel#1(lines 2414 2586) no Hoare annotation was computed. [2023-11-23 20:38:13,731 INFO L895 garLoopResultBuilder]: At program point L2796(line 2796) the Hoare annotation is: false [2023-11-23 20:38:13,731 INFO L899 garLoopResultBuilder]: For program point L2829(line 2829) no Hoare annotation was computed. [2023-11-23 20:38:13,731 INFO L899 garLoopResultBuilder]: For program point L2763(line 2763) no Hoare annotation was computed. [2023-11-23 20:38:13,731 INFO L899 garLoopResultBuilder]: For program point L2796-1(line 2796) no Hoare annotation was computed. [2023-11-23 20:38:13,731 INFO L899 garLoopResultBuilder]: For program point L2631-1(line 2631) no Hoare annotation was computed. [2023-11-23 20:38:13,731 INFO L895 garLoopResultBuilder]: At program point L2631(line 2631) the Hoare annotation is: false [2023-11-23 20:38:13,731 INFO L899 garLoopResultBuilder]: For program point L2532-1(lines 2532 2539) no Hoare annotation was computed. [2023-11-23 20:38:13,732 INFO L902 garLoopResultBuilder]: At program point L2830(line 2830) the Hoare annotation is: true [2023-11-23 20:38:13,732 INFO L899 garLoopResultBuilder]: For program point L2731(line 2731) no Hoare annotation was computed. [2023-11-23 20:38:13,732 INFO L899 garLoopResultBuilder]: For program point L2698-2(lines 2696 2710) no Hoare annotation was computed. [2023-11-23 20:38:13,732 INFO L899 garLoopResultBuilder]: For program point L2732(lines 2732 2736) no Hoare annotation was computed. [2023-11-23 20:38:13,732 INFO L899 garLoopResultBuilder]: For program point L2732-2(lines 2723 2773) no Hoare annotation was computed. [2023-11-23 20:38:13,732 INFO L899 garLoopResultBuilder]: For program point $Ultimate##76(lines 2504 2507) no Hoare annotation was computed. [2023-11-23 20:38:13,733 INFO L899 garLoopResultBuilder]: For program point L2534(lines 2534 2537) no Hoare annotation was computed. [2023-11-23 20:38:13,733 INFO L899 garLoopResultBuilder]: For program point $Ultimate##61(lines 2456 2473) no Hoare annotation was computed. [2023-11-23 20:38:13,733 INFO L899 garLoopResultBuilder]: For program point L2733-1(line 2733) no Hoare annotation was computed. [2023-11-23 20:38:13,733 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)))) [2023-11-23 20:38:13,733 INFO L899 garLoopResultBuilder]: For program point L2568(lines 2568 2578) no Hoare annotation was computed. [2023-11-23 20:38:13,733 INFO L899 garLoopResultBuilder]: For program point $Ultimate##63(lines 2465 2468) no Hoare annotation was computed. [2023-11-23 20:38:13,734 INFO L895 garLoopResultBuilder]: At program point L2568-2(lines 2568 2578) the Hoare annotation is: false [2023-11-23 20:38:13,734 INFO L899 garLoopResultBuilder]: For program point L2469-1(line 2469) no Hoare annotation was computed. [2023-11-23 20:38:13,734 INFO L895 garLoopResultBuilder]: At program point L2469(line 2469) the Hoare annotation is: (= ~ldv_state_variable_0~0 1) [2023-11-23 20:38:13,734 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 20:38:13,734 INFO L899 garLoopResultBuilder]: For program point $Ultimate##59(lines 2451 2454) no Hoare annotation was computed. [2023-11-23 20:38:13,734 INFO L899 garLoopResultBuilder]: For program point L2668(line 2668) no Hoare annotation was computed. [2023-11-23 20:38:13,735 INFO L899 garLoopResultBuilder]: For program point L2569-1(lines 2569 2572) no Hoare annotation was computed. [2023-11-23 20:38:13,735 INFO L895 garLoopResultBuilder]: At program point L2569(lines 2569 2572) the Hoare annotation is: false [2023-11-23 20:38:13,735 INFO L895 garLoopResultBuilder]: At program point L2470(line 2470) the Hoare annotation is: (= ~ldv_state_variable_0~0 1) [2023-11-23 20:38:13,735 INFO L899 garLoopResultBuilder]: For program point L2470-1(line 2470) no Hoare annotation was computed. [2023-11-23 20:38:13,735 INFO L899 garLoopResultBuilder]: For program point L2801(line 2801) no Hoare annotation was computed. [2023-11-23 20:38:13,735 INFO L899 garLoopResultBuilder]: For program point L2636(line 2636) no Hoare annotation was computed. [2023-11-23 20:38:13,736 INFO L899 garLoopResultBuilder]: For program point L2802(lines 2802 2806) no Hoare annotation was computed. [2023-11-23 20:38:13,736 INFO L899 garLoopResultBuilder]: For program point L2802-2(lines 2781 2831) no Hoare annotation was computed. [2023-11-23 20:38:13,736 INFO L899 garLoopResultBuilder]: For program point L2637(lines 2637 2641) no Hoare annotation was computed. [2023-11-23 20:38:13,736 INFO L899 garLoopResultBuilder]: For program point L2637-2(lines 2628 2678) no Hoare annotation was computed. [2023-11-23 20:38:13,736 INFO L899 garLoopResultBuilder]: For program point L2836(line 2836) no Hoare annotation was computed. [2023-11-23 20:38:13,736 INFO L899 garLoopResultBuilder]: For program point L2803-1(line 2803) no Hoare annotation was computed. [2023-11-23 20:38:13,736 INFO L895 garLoopResultBuilder]: At program point L2803(line 2803) the Hoare annotation is: false [2023-11-23 20:38:13,737 INFO L895 garLoopResultBuilder]: At program point L2638(line 2638) the Hoare annotation is: false [2023-11-23 20:38:13,737 INFO L899 garLoopResultBuilder]: For program point L2638-1(line 2638) no Hoare annotation was computed. [2023-11-23 20:38:13,737 INFO L902 garLoopResultBuilder]: At program point L2837(line 2837) the Hoare annotation is: true [2023-11-23 20:38:13,737 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)))) [2023-11-23 20:38:13,737 INFO L899 garLoopResultBuilder]: For program point L2771(line 2771) no Hoare annotation was computed. [2023-11-23 20:38:13,738 INFO L899 garLoopResultBuilder]: For program point L2738-1(line 2738) no Hoare annotation was computed. [2023-11-23 20:38:13,738 INFO L899 garLoopResultBuilder]: For program point L2573(lines 2573 2576) no Hoare annotation was computed. [2023-11-23 20:38:13,738 INFO L899 garLoopResultBuilder]: For program point L2474(lines 2474 2477) no Hoare annotation was computed. [2023-11-23 20:38:13,738 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 20:38:13,738 INFO L899 garLoopResultBuilder]: For program point L2474-2(lines 2425 2585) no Hoare annotation was computed. [2023-11-23 20:38:13,738 INFO L902 garLoopResultBuilder]: At program point L2772(line 2772) the Hoare annotation is: true [2023-11-23 20:38:13,739 INFO L899 garLoopResultBuilder]: For program point L2508(lines 2508 2515) no Hoare annotation was computed. [2023-11-23 20:38:13,739 INFO L899 garLoopResultBuilder]: For program point L2475-1(line 2475) no Hoare annotation was computed. [2023-11-23 20:38:13,739 INFO L899 garLoopResultBuilder]: For program point L2508-2(lines 2425 2585) no Hoare annotation was computed. [2023-11-23 20:38:13,739 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)) [2023-11-23 20:38:13,739 INFO L899 garLoopResultBuilder]: For program point L2542(lines 2542 2550) no Hoare annotation was computed. [2023-11-23 20:38:13,739 INFO L899 garLoopResultBuilder]: For program point L2510(lines 2510 2513) no Hoare annotation was computed. [2023-11-23 20:38:13,740 INFO L899 garLoopResultBuilder]: For program point L2543(lines 2543 2546) no Hoare annotation was computed. [2023-11-23 20:38:13,740 INFO L899 garLoopResultBuilder]: For program point L2543-2(lines 2543 2546) no Hoare annotation was computed. [2023-11-23 20:38:13,740 INFO L899 garLoopResultBuilder]: For program point $Ultimate##105(lines 2564 2567) no Hoare annotation was computed. [2023-11-23 20:38:13,740 INFO L895 garLoopResultBuilder]: At program point L2808(line 2808) the Hoare annotation is: false [2023-11-23 20:38:13,740 INFO L899 garLoopResultBuilder]: For program point L2808-1(line 2808) no Hoare annotation was computed. [2023-11-23 20:38:13,740 INFO L899 garLoopResultBuilder]: For program point L2676(line 2676) no Hoare annotation was computed. [2023-11-23 20:38:13,741 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)) [2023-11-23 20:38:13,741 INFO L899 garLoopResultBuilder]: For program point L2643-1(line 2643) no Hoare annotation was computed. [2023-11-23 20:38:13,741 INFO L895 garLoopResultBuilder]: At program point L2643(line 2643) the Hoare annotation is: false [2023-11-23 20:38:13,741 INFO L895 garLoopResultBuilder]: At program point L2544(line 2544) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_spin~0 0)) [2023-11-23 20:38:13,741 INFO L899 garLoopResultBuilder]: For program point L2610-1(line 2610) no Hoare annotation was computed. [2023-11-23 20:38:13,741 INFO L899 garLoopResultBuilder]: For program point L2544-1(line 2544) no Hoare annotation was computed. [2023-11-23 20:38:13,742 INFO L899 garLoopResultBuilder]: For program point L2445(lines 2445 2448) no Hoare annotation was computed. [2023-11-23 20:38:13,742 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)) [2023-11-23 20:38:13,742 INFO L899 garLoopResultBuilder]: For program point L2743(line 2743) no Hoare annotation was computed. [2023-11-23 20:38:13,742 INFO L902 garLoopResultBuilder]: At program point L2677(line 2677) the Hoare annotation is: true [2023-11-23 20:38:13,742 INFO L895 garLoopResultBuilder]: At program point L2894(line 2894) the Hoare annotation is: (not (= ~ldv_spin~0 0)) [2023-11-23 20:38:13,742 INFO L899 garLoopResultBuilder]: For program point ldv_check_alloc_flagsEXIT(lines 2889 2898) no Hoare annotation was computed. [2023-11-23 20:38:13,743 INFO L899 garLoopResultBuilder]: For program point L2894-1(lines 2889 2898) no Hoare annotation was computed. [2023-11-23 20:38:13,743 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2889 2898) the Hoare annotation is: true [2023-11-23 20:38:13,743 INFO L899 garLoopResultBuilder]: For program point L2892-7(lines 2892 2895) no Hoare annotation was computed. [2023-11-23 20:38:13,745 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:13,748 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:38:13,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:38:13 BoogieIcfgContainer [2023-11-23 20:38:13,760 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:38:13,761 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:38:13,761 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:38:13,761 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:38:13,762 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:48" (3/4) ... [2023-11-23 20:38:13,764 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:38:13,767 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _torture_stop_kthread [2023-11-23 20:38:13,768 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kfree [2023-11-23 20:38:13,768 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_lock_busted_write_delay [2023-11-23 20:38:13,768 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2023-11-23 20:38:13,768 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_lock_spin_write_unlock_irq [2023-11-23 20:38:13,768 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __const_udelay [2023-11-23 20:38:13,769 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2023-11-23 20:38:13,769 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_lock_busted_write_lock [2023-11-23 20:38:13,769 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmalloc [2023-11-23 20:38:13,769 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_random [2023-11-23 20:38:13,769 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2023-11-23 20:38:13,769 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lock_torture_stats_print [2023-11-23 20:38:13,769 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_lock_busted_write_unlock [2023-11-23 20:38:13,770 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lock_torture_print_module_parms [2023-11-23 20:38:13,770 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_spin_lock_write_delay [2023-11-23 20:38:13,770 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lock_torture_cleanup [2023-11-23 20:38:13,770 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_init_end [2023-11-23 20:38:13,770 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-23 20:38:13,770 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_spin_unlock [2023-11-23 20:38:13,771 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_spin_lock [2023-11-23 20:38:13,771 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_spin_lock_write_lock_irq [2023-11-23 20:38:13,771 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2023-11-23 20:38:13,771 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _torture_create_kthread [2023-11-23 20:38:13,771 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_spin_lock_write_lock [2023-11-23 20:38:13,771 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~~TO~VOID [2023-11-23 20:38:13,771 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_zalloc [2023-11-23 20:38:13,772 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_spin_lock_write_unlock [2023-11-23 20:38:13,772 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_check_alloc_flags [2023-11-23 20:38:13,793 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 173 nodes and edges [2023-11-23 20:38:13,796 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 57 nodes and edges [2023-11-23 20:38:13,799 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-23 20:38:13,802 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 20:38:13,804 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 20:38:13,807 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:38:13,809 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:38:14,020 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 20:38:14,021 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 20:38:14,021 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:38:14,022 INFO L158 Benchmark]: Toolchain (without parser) took 29305.61ms. Allocated memory was 186.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 151.9MB in the beginning and 767.5MB in the end (delta: -615.6MB). Peak memory consumption was 416.1MB. Max. memory is 16.1GB. [2023-11-23 20:38:14,022 INFO L158 Benchmark]: CDTParser took 2.58ms. Allocated memory is still 127.9MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:38:14,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1503.62ms. Allocated memory is still 186.6MB. Free memory was 151.9MB in the beginning and 101.8MB in the end (delta: 50.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2023-11-23 20:38:14,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 249.10ms. Allocated memory is still 186.6MB. Free memory was 101.8MB in the beginning and 145.2MB in the end (delta: -43.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 20:38:14,024 INFO L158 Benchmark]: Boogie Preprocessor took 184.92ms. Allocated memory is still 186.6MB. Free memory was 145.2MB in the beginning and 140.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:38:14,024 INFO L158 Benchmark]: RCFGBuilder took 2042.75ms. Allocated memory was 186.6MB in the beginning and 232.8MB in the end (delta: 46.1MB). Free memory was 138.9MB in the beginning and 152.3MB in the end (delta: -13.4MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. [2023-11-23 20:38:14,025 INFO L158 Benchmark]: TraceAbstraction took 25053.17ms. Allocated memory was 232.8MB in the beginning and 1.2GB in the end (delta: 985.7MB). Free memory was 151.3MB in the beginning and 787.5MB in the end (delta: -636.2MB). Peak memory consumption was 472.1MB. Max. memory is 16.1GB. [2023-11-23 20:38:14,025 INFO L158 Benchmark]: Witness Printer took 260.73ms. Allocated memory is still 1.2GB. Free memory was 787.5MB in the beginning and 767.5MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 20:38:14,028 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.58ms. Allocated memory is still 127.9MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1503.62ms. Allocated memory is still 186.6MB. Free memory was 151.9MB in the beginning and 101.8MB in the end (delta: 50.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 249.10ms. Allocated memory is still 186.6MB. Free memory was 101.8MB in the beginning and 145.2MB in the end (delta: -43.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 184.92ms. Allocated memory is still 186.6MB. Free memory was 145.2MB in the beginning and 140.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 2042.75ms. Allocated memory was 186.6MB in the beginning and 232.8MB in the end (delta: 46.1MB). Free memory was 138.9MB in the beginning and 152.3MB in the end (delta: -13.4MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. * TraceAbstraction took 25053.17ms. Allocated memory was 232.8MB in the beginning and 1.2GB in the end (delta: 985.7MB). Free memory was 151.3MB in the beginning and 787.5MB in the end (delta: -636.2MB). Peak memory consumption was 472.1MB. Max. memory is 16.1GB. * Witness Printer took 260.73ms. Allocated memory is still 1.2GB. Free memory was 787.5MB in the beginning and 767.5MB in the end (delta: 20.0MB). 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: 25.0s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4907 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4896 mSDsluCounter, 13206 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7314 mSDsCounter, 262 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2539 IncrementalHoareTripleChecker+Invalid, 2801 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 262 mSolverCounterUnsat, 5892 mSDtfsCounter, 2539 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 643 GetRequests, 586 SyntacticMatches, 4 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 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: 5.1s 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, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 1658 NumberOfCodeBlocks, 1658 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1873 ConstructedInterpolants, 0 QuantifiedInterpolants, 3631 SizeOfPredicates, 20 NumberOfNonLiveVariables, 2862 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! [2023-11-23 20:38:14,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b3ca5f-1548-44ac-b45a-ec2207add56b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE