./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-drivers--target--sbp--sbp_target.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--target--sbp--sbp_target.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh --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 aaf1d771ac3b5c1ee5469ce53dcb9ae85a178368868569822ee5e312f0a622d5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 08:21:13,786 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 08:21:13,852 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 08:21:13,857 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 08:21:13,857 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 08:21:13,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 08:21:13,883 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 08:21:13,883 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 08:21:13,884 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 08:21:13,885 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 08:21:13,885 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 08:21:13,886 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 08:21:13,886 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 08:21:13,887 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 08:21:13,887 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 08:21:13,887 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 08:21:13,888 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 08:21:13,888 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 08:21:13,889 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 08:21:13,889 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 08:21:13,890 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 08:21:13,890 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 08:21:13,891 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 08:21:13,892 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 08:21:13,892 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 08:21:13,892 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 08:21:13,893 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 08:21:13,893 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 08:21:13,894 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 08:21:13,894 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 08:21:13,895 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 08:21:13,895 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 08:21:13,895 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 08:21:13,896 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 08:21:13,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:21:13,897 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 08:21:13,897 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 08:21:13,897 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 08:21:13,898 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 08:21:13,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 08:21:13,898 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 08:21:13,899 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 08:21:13,899 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 08:21:13,899 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 08:21:13,899 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_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aaf1d771ac3b5c1ee5469ce53dcb9ae85a178368868569822ee5e312f0a622d5 [2023-12-02 08:21:14,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 08:21:14,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 08:21:14,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 08:21:14,146 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 08:21:14,147 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 08:21:14,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--target--sbp--sbp_target.ko-entry_point.cil.out.i [2023-12-02 08:21:16,962 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 08:21:17,467 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 08:21:17,467 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--target--sbp--sbp_target.ko-entry_point.cil.out.i [2023-12-02 08:21:17,516 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh/data/81812398b/9471f996bd4a4867866fcf8c6c150941/FLAGace2fa156 [2023-12-02 08:21:17,531 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh/data/81812398b/9471f996bd4a4867866fcf8c6c150941 [2023-12-02 08:21:17,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 08:21:17,535 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 08:21:17,536 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 08:21:17,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 08:21:17,541 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 08:21:17,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:21:17" (1/1) ... [2023-12-02 08:21:17,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@82281d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:17, skipping insertion in model container [2023-12-02 08:21:17,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:21:17" (1/1) ... [2023-12-02 08:21:17,672 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 08:21:18,195 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [7208] [2023-12-02 08:21:18,196 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [7209-7210] [2023-12-02 08:21:18,628 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_635996ea-f364-471c-9eae-188a196add9a/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--target--sbp--sbp_target.ko-entry_point.cil.out.i[225756,225769] [2023-12-02 08:21:19,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:21:19,609 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 08:21:19,767 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [7208] [2023-12-02 08:21:19,767 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [7209-7210] [2023-12-02 08:21:19,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [7292] [2023-12-02 08:21:19,774 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; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [7384-7385] [2023-12-02 08:21:19,775 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; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [7396-7397] [2023-12-02 08:21:19,775 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; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [7400-7401] [2023-12-02 08:21:19,775 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; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [7404-7405] [2023-12-02 08:21:19,776 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; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [7408-7409] [2023-12-02 08:21:19,784 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_635996ea-f364-471c-9eae-188a196add9a/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--target--sbp--sbp_target.ko-entry_point.cil.out.i[225756,225769] [2023-12-02 08:21:19,845 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/5011/dscv_tempdir/dscv/ri/43_2a/drivers/target/sbp/sbp_target.o.c.prepared"), "i" (981), "i" (12UL)); [8919-8920] [2023-12-02 08:21:19,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:21:20,065 WARN L675 CHandler]: The function strstr is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:21:20,066 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:21:20,066 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:21:20,074 INFO L206 MainTranslator]: Completed translation [2023-12-02 08:21:20,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:20 WrapperNode [2023-12-02 08:21:20,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 08:21:20,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 08:21:20,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 08:21:20,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 08:21:20,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:20" (1/1) ... [2023-12-02 08:21:20,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:20" (1/1) ... [2023-12-02 08:21:20,339 INFO L138 Inliner]: procedures = 276, calls = 2193, calls flagged for inlining = 108, calls inlined = 97, statements flattened = 5165 [2023-12-02 08:21:20,340 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 08:21:20,340 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 08:21:20,341 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 08:21:20,341 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 08:21:20,351 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:20" (1/1) ... [2023-12-02 08:21:20,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:20" (1/1) ... [2023-12-02 08:21:20,381 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:20" (1/1) ... [2023-12-02 08:21:20,382 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:20" (1/1) ... [2023-12-02 08:21:20,485 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:20" (1/1) ... [2023-12-02 08:21:20,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:20" (1/1) ... [2023-12-02 08:21:20,582 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:20" (1/1) ... [2023-12-02 08:21:20,597 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:20" (1/1) ... [2023-12-02 08:21:20,624 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 08:21:20,624 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 08:21:20,625 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 08:21:20,625 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 08:21:20,625 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:20" (1/1) ... [2023-12-02 08:21:20,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:21:20,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:21:20,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 08:21:20,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 08:21:20,694 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-12-02 08:21:20,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-12-02 08:21:20,694 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_shutdown_session [2023-12-02 08:21:20,694 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_shutdown_session [2023-12-02 08:21:20,695 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_session_release [2023-12-02 08:21:20,695 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_session_release [2023-12-02 08:21:20,695 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-12-02 08:21:20,695 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-12-02 08:21:20,695 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_mgt_agent_process [2023-12-02 08:21:20,695 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_mgt_agent_process [2023-12-02 08:21:20,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 08:21:20,695 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_tag [2023-12-02 08:21:20,696 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_tag [2023-12-02 08:21:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 08:21:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 08:21:20,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 08:21:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_post_link_lun [2023-12-02 08:21:20,696 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_post_link_lun [2023-12-02 08:21:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_fabric_proto_ident [2023-12-02 08:21:20,696 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_fabric_proto_ident [2023-12-02 08:21:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_pr_transport_id_len [2023-12-02 08:21:20,697 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_pr_transport_id_len [2023-12-02 08:21:20,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-12-02 08:21:20,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-12-02 08:21:20,697 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_queue_status [2023-12-02 08:21:20,697 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_queue_status [2023-12-02 08:21:20,697 INFO L130 BoogieDeclarations]: Found specification of procedure read_peer_guid [2023-12-02 08:21:20,697 INFO L138 BoogieDeclarations]: Found implementation of procedure read_peer_guid [2023-12-02 08:21:20,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 08:21:20,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 08:21:20,698 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_queue_data_in [2023-12-02 08:21:20,698 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_queue_data_in [2023-12-02 08:21:20,698 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_queue_tm_rsp [2023-12-02 08:21:20,698 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_queue_tm_rsp [2023-12-02 08:21:20,698 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_drop_tport [2023-12-02 08:21:20,698 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_drop_tport [2023-12-02 08:21:20,698 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_aborted_task [2023-12-02 08:21:20,698 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_aborted_task [2023-12-02 08:21:20,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-12-02 08:21:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-12-02 08:21:20,699 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_make_tpg [2023-12-02 08:21:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_make_tpg [2023-12-02 08:21:20,699 INFO L130 BoogieDeclarations]: Found specification of procedure sbp2_pointer_to_addr [2023-12-02 08:21:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp2_pointer_to_addr [2023-12-02 08:21:20,699 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_management_request_login [2023-12-02 08:21:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_management_request_login [2023-12-02 08:21:20,699 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 08:21:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 08:21:20,700 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_agent_process_work [2023-12-02 08:21:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_agent_process_work [2023-12-02 08:21:20,700 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-12-02 08:21:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-12-02 08:21:20,700 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-12-02 08:21:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-12-02 08:21:20,700 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_pr_transport_id [2023-12-02 08:21:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_pr_transport_id [2023-12-02 08:21:20,701 INFO L130 BoogieDeclarations]: Found specification of procedure get_jiffies_64 [2023-12-02 08:21:20,701 INFO L138 BoogieDeclarations]: Found implementation of procedure get_jiffies_64 [2023-12-02 08:21:20,701 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_drop_tpg [2023-12-02 08:21:20,701 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_drop_tpg [2023-12-02 08:21:20,701 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_close_session [2023-12-02 08:21:20,701 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_close_session [2023-12-02 08:21:20,701 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-12-02 08:21:20,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-12-02 08:21:20,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 08:21:20,702 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-12-02 08:21:20,702 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-12-02 08:21:20,702 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-12-02 08:21:20,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 08:21:20,702 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_management_request_reconnect [2023-12-02 08:21:20,702 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_management_request_reconnect [2023-12-02 08:21:20,702 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_login_release [2023-12-02 08:21:20,702 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_login_release [2023-12-02 08:21:20,702 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-12-02 08:21:20,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-12-02 08:21:20,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-12-02 08:21:20,703 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_make_nodeacl [2023-12-02 08:21:20,703 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_make_nodeacl [2023-12-02 08:21:20,703 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2023-12-02 08:21:20,703 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_release_cmd [2023-12-02 08:21:20,703 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_release_cmd [2023-12-02 08:21:20,703 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_agent_check_active [2023-12-02 08:21:20,703 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_agent_check_active [2023-12-02 08:21:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_pre_unlink_lun [2023-12-02 08:21:20,704 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_pre_unlink_lun [2023-12-02 08:21:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 08:21:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_drop_nodeacl [2023-12-02 08:21:20,704 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_drop_nodeacl [2023-12-02 08:21:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 08:21:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 08:21:20,704 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 08:21:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_fetch_command [2023-12-02 08:21:20,704 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_fetch_command [2023-12-02 08:21:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-12-02 08:21:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-12-02 08:21:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-12-02 08:21:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-12-02 08:21:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-12-02 08:21:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-12-02 08:21:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-12-02 08:21:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-12-02 08:21:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-12-02 08:21:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-12-02 08:21:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure session_check_for_reset [2023-12-02 08:21:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure session_check_for_reset [2023-12-02 08:21:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-12-02 08:21:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-12-02 08:21:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-12-02 08:21:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-12-02 08:21:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-12-02 08:21:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-12-02 08:21:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_agent_fetch_work [2023-12-02 08:21:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_agent_fetch_work [2023-12-02 08:21:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 08:21:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_format_wwn [2023-12-02 08:21:20,707 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_format_wwn [2023-12-02 08:21:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-12-02 08:21:20,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-12-02 08:21:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_set_default_node_attrs [2023-12-02 08:21:20,707 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_set_default_node_attrs [2023-12-02 08:21:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-12-02 08:21:20,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-12-02 08:21:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_task_tag [2023-12-02 08:21:20,707 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_task_tag [2023-12-02 08:21:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_management_agent_unregister [2023-12-02 08:21:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_management_agent_unregister [2023-12-02 08:21:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-12-02 08:21:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-12-02 08:21:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 08:21:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure session_maintenance_work [2023-12-02 08:21:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure session_maintenance_work [2023-12-02 08:21:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_check_true [2023-12-02 08:21:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_check_true [2023-12-02 08:21:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 08:21:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_fabric_name [2023-12-02 08:21:20,709 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_fabric_name [2023-12-02 08:21:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure fw_card_put [2023-12-02 08:21:20,709 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_card_put [2023-12-02 08:21:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure addr_to_sbp2_pointer [2023-12-02 08:21:20,709 INFO L138 BoogieDeclarations]: Found implementation of procedure addr_to_sbp2_pointer [2023-12-02 08:21:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 08:21:20,709 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 08:21:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_run_transaction [2023-12-02 08:21:20,709 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_run_transaction [2023-12-02 08:21:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure session_reconnect_expired [2023-12-02 08:21:20,709 INFO L138 BoogieDeclarations]: Found implementation of procedure session_reconnect_expired [2023-12-02 08:21:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-12-02 08:21:20,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-12-02 08:21:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_send_status [2023-12-02 08:21:20,710 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_send_status [2023-12-02 08:21:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 08:21:20,710 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 08:21:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_parse_pr_out_transport_id [2023-12-02 08:21:20,710 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_parse_pr_out_transport_id [2023-12-02 08:21:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-12-02 08:21:20,710 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-12-02 08:21:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 08:21:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-12-02 08:21:20,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-12-02 08:21:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_make_tport [2023-12-02 08:21:20,711 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_make_tport [2023-12-02 08:21:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure fw_core_add_address_handler [2023-12-02 08:21:20,711 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_core_add_address_handler [2023-12-02 08:21:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_handle_command [2023-12-02 08:21:20,711 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_handle_command [2023-12-02 08:21:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-12-02 08:21:20,712 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-12-02 08:21:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 08:21:20,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 08:21:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_release_fabric_acl [2023-12-02 08:21:20,712 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_release_fabric_acl [2023-12-02 08:21:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_sess_get_index [2023-12-02 08:21:20,712 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_sess_get_index [2023-12-02 08:21:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_login_find_by_id [2023-12-02 08:21:20,712 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_login_find_by_id [2023-12-02 08:21:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 08:21:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure fw_card_get [2023-12-02 08:21:20,713 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_card_get [2023-12-02 08:21:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_rw_data [2023-12-02 08:21:20,713 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_rw_data [2023-12-02 08:21:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 08:21:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 08:21:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 08:21:20,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 08:21:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_fetch_page_table [2023-12-02 08:21:20,714 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_fetch_page_table [2023-12-02 08:21:20,714 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_send_sense [2023-12-02 08:21:20,714 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_send_sense [2023-12-02 08:21:20,714 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_free_request [2023-12-02 08:21:20,714 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_free_request [2023-12-02 08:21:20,714 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_parse_wwn [2023-12-02 08:21:20,714 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_parse_wwn [2023-12-02 08:21:20,714 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-12-02 08:21:20,714 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-12-02 08:21:20,714 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_management_request_logout [2023-12-02 08:21:20,714 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_management_request_logout [2023-12-02 08:21:20,715 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_fabric_wwn [2023-12-02 08:21:20,715 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_fabric_wwn [2023-12-02 08:21:20,715 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2023-12-02 08:21:20,715 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2023-12-02 08:21:20,715 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_run_request_transaction [2023-12-02 08:21:20,715 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_run_request_transaction [2023-12-02 08:21:20,715 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2023-12-02 08:21:20,715 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2023-12-02 08:21:20,715 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-12-02 08:21:20,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-12-02 08:21:20,716 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_update_unit_directory [2023-12-02 08:21:20,716 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_update_unit_directory [2023-12-02 08:21:20,716 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-12-02 08:21:20,716 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-12-02 08:21:20,716 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_default_depth [2023-12-02 08:21:20,716 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_default_depth [2023-12-02 08:21:20,716 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_login_count_all_by_lun [2023-12-02 08:21:20,716 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_login_count_all_by_lun [2023-12-02 08:21:20,716 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_check_false [2023-12-02 08:21:20,716 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_check_false [2023-12-02 08:21:20,716 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-12-02 08:21:20,717 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-12-02 08:21:20,717 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-12-02 08:21:20,717 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-12-02 08:21:20,717 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_write_pending_status [2023-12-02 08:21:20,717 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_write_pending_status [2023-12-02 08:21:20,717 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_tpg_get_inst_index [2023-12-02 08:21:20,717 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_tpg_get_inst_index [2023-12-02 08:21:20,717 INFO L130 BoogieDeclarations]: Found specification of procedure fw_core_remove_address_handler [2023-12-02 08:21:20,717 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_core_remove_address_handler [2023-12-02 08:21:20,717 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_cmd_state [2023-12-02 08:21:20,717 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_cmd_state [2023-12-02 08:21:20,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 08:21:20,718 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_alloc_fabric_acl [2023-12-02 08:21:20,718 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_alloc_fabric_acl [2023-12-02 08:21:20,718 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-12-02 08:21:20,718 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-12-02 08:21:20,718 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_count_se_tpg_luns [2023-12-02 08:21:20,718 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_count_se_tpg_luns [2023-12-02 08:21:20,718 INFO L130 BoogieDeclarations]: Found specification of procedure fw_card_release [2023-12-02 08:21:20,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 08:21:20,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 08:21:20,719 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_check_stop_free [2023-12-02 08:21:20,719 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_check_stop_free [2023-12-02 08:21:20,719 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2023-12-02 08:21:20,719 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2023-12-02 08:21:20,719 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-12-02 08:21:20,719 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-12-02 08:21:21,488 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 08:21:21,492 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 08:21:21,919 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 08:21:30,322 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 08:21:31,682 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 08:21:31,682 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 08:21:31,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:21:31 BoogieIcfgContainer [2023-12-02 08:21:31,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 08:21:31,689 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 08:21:31,690 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 08:21:31,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 08:21:31,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:21:17" (1/3) ... [2023-12-02 08:21:31,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111a691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:21:31, skipping insertion in model container [2023-12-02 08:21:31,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:20" (2/3) ... [2023-12-02 08:21:31,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111a691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:21:31, skipping insertion in model container [2023-12-02 08:21:31,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:21:31" (3/3) ... [2023-12-02 08:21:31,698 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--target--sbp--sbp_target.ko-entry_point.cil.out.i [2023-12-02 08:21:31,724 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 08:21:31,724 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 08:21:31,813 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 08:21:31,819 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;@31b324d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 08:21:31,819 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 08:21:31,831 INFO L276 IsEmpty]: Start isEmpty. Operand has 1688 states, 1030 states have (on average 1.3398058252427185) internal successors, (1380), 1064 states have internal predecessors, (1380), 545 states have call successors, (545), 112 states have call predecessors, (545), 111 states have return successors, (536), 521 states have call predecessors, (536), 536 states have call successors, (536) [2023-12-02 08:21:31,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-02 08:21:31,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:21:31,863 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:21:31,864 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:21:31,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:21:31,869 INFO L85 PathProgramCache]: Analyzing trace with hash 699396359, now seen corresponding path program 1 times [2023-12-02 08:21:31,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:21:31,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139790806] [2023-12-02 08:21:31,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:21:31,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:21:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:21:32,539 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-02 08:21:32,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:21:32,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139790806] [2023-12-02 08:21:32,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139790806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:21:32,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:21:32,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 08:21:32,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410258043] [2023-12-02 08:21:32,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:21:32,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:21:32,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:21:32,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:21:32,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:21:32,586 INFO L87 Difference]: Start difference. First operand has 1688 states, 1030 states have (on average 1.3398058252427185) internal successors, (1380), 1064 states have internal predecessors, (1380), 545 states have call successors, (545), 112 states have call predecessors, (545), 111 states have return successors, (536), 521 states have call predecessors, (536), 536 states have call successors, (536) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 08:21:35,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:21:37,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:21:40,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:21:42,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:21:44,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:21:46,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:21:48,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:21:48,120 INFO L93 Difference]: Finished difference Result 4936 states and 7350 transitions. [2023-12-02 08:21:48,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:21:48,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 177 [2023-12-02 08:21:48,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:21:48,167 INFO L225 Difference]: With dead ends: 4936 [2023-12-02 08:21:48,168 INFO L226 Difference]: Without dead ends: 3268 [2023-12-02 08:21:48,184 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 [2023-12-02 08:21:48,187 INFO L413 NwaCegarLoop]: 2275 mSDtfsCounter, 2396 mSDsluCounter, 2206 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2396 SdHoareTripleChecker+Valid, 4481 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2023-12-02 08:21:48,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2396 Valid, 4481 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 365 Invalid, 6 Unknown, 0 Unchecked, 15.2s Time] [2023-12-02 08:21:48,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3268 states. [2023-12-02 08:21:48,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3268 to 3264. [2023-12-02 08:21:48,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3264 states, 2007 states have (on average 1.332336821126059) internal successors, (2674), 2054 states have internal predecessors, (2674), 1036 states have call successors, (1036), 221 states have call predecessors, (1036), 220 states have return successors, (1035), 1004 states have call predecessors, (1035), 1035 states have call successors, (1035) [2023-12-02 08:21:48,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3264 states to 3264 states and 4745 transitions. [2023-12-02 08:21:48,508 INFO L78 Accepts]: Start accepts. Automaton has 3264 states and 4745 transitions. Word has length 177 [2023-12-02 08:21:48,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:21:48,510 INFO L495 AbstractCegarLoop]: Abstraction has 3264 states and 4745 transitions. [2023-12-02 08:21:48,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 08:21:48,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3264 states and 4745 transitions. [2023-12-02 08:21:48,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-02 08:21:48,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:21:48,518 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:21:48,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 08:21:48,518 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:21:48,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:21:48,519 INFO L85 PathProgramCache]: Analyzing trace with hash -2037034964, now seen corresponding path program 1 times [2023-12-02 08:21:48,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:21:48,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956750210] [2023-12-02 08:21:48,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:21:48,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:21:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:21:48,845 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-02 08:21:48,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:21:48,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956750210] [2023-12-02 08:21:48,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956750210] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:21:48,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:21:48,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 08:21:48,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124398774] [2023-12-02 08:21:48,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:21:48,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:21:48,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:21:48,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:21:48,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:21:48,850 INFO L87 Difference]: Start difference. First operand 3264 states and 4745 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 08:21:51,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:21:53,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:21:56,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:21:58,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:00,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:02,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:03,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:22:03,439 INFO L93 Difference]: Finished difference Result 9672 states and 14053 transitions. [2023-12-02 08:22:03,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:22:03,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 181 [2023-12-02 08:22:03,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:22:03,480 INFO L225 Difference]: With dead ends: 9672 [2023-12-02 08:22:03,481 INFO L226 Difference]: Without dead ends: 6453 [2023-12-02 08:22:03,492 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 [2023-12-02 08:22:03,493 INFO L413 NwaCegarLoop]: 2272 mSDtfsCounter, 2397 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 4456 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2023-12-02 08:22:03,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 4456 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 365 Invalid, 5 Unknown, 0 Unchecked, 14.3s Time] [2023-12-02 08:22:03,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6453 states. [2023-12-02 08:22:03,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6453 to 6449. [2023-12-02 08:22:03,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6449 states, 3965 states have (on average 1.3329129886506936) internal successors, (5285), 4060 states have internal predecessors, (5285), 2043 states have call successors, (2043), 441 states have call predecessors, (2043), 440 states have return successors, (2042), 1979 states have call predecessors, (2042), 2042 states have call successors, (2042) [2023-12-02 08:22:03,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6449 states to 6449 states and 9370 transitions. [2023-12-02 08:22:03,797 INFO L78 Accepts]: Start accepts. Automaton has 6449 states and 9370 transitions. Word has length 181 [2023-12-02 08:22:03,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:22:03,798 INFO L495 AbstractCegarLoop]: Abstraction has 6449 states and 9370 transitions. [2023-12-02 08:22:03,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 08:22:03,798 INFO L276 IsEmpty]: Start isEmpty. Operand 6449 states and 9370 transitions. [2023-12-02 08:22:03,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-02 08:22:03,802 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:22:03,802 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:22:03,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 08:22:03,802 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:22:03,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:22:03,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1743407545, now seen corresponding path program 1 times [2023-12-02 08:22:03,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:22:03,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032918770] [2023-12-02 08:22:03,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:22:03,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:22:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:22:03,993 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-02 08:22:03,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:22:03,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032918770] [2023-12-02 08:22:03,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032918770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:22:03,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:22:03,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 08:22:03,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748560935] [2023-12-02 08:22:03,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:22:03,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:22:03,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:22:03,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:22:03,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:22:03,997 INFO L87 Difference]: Start difference. First operand 6449 states and 9370 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-02 08:22:06,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:09,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:10,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:12,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:14,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:15,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:22:15,789 INFO L93 Difference]: Finished difference Result 13830 states and 20011 transitions. [2023-12-02 08:22:15,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:22:15,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 178 [2023-12-02 08:22:15,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:22:15,835 INFO L225 Difference]: With dead ends: 13830 [2023-12-02 08:22:15,835 INFO L226 Difference]: Without dead ends: 7426 [2023-12-02 08:22:15,856 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 [2023-12-02 08:22:15,857 INFO L413 NwaCegarLoop]: 2290 mSDtfsCounter, 417 mSDsluCounter, 1968 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 4258 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-02 08:22:15,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 4258 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 583 Invalid, 4 Unknown, 0 Unchecked, 11.6s Time] [2023-12-02 08:22:15,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7426 states. [2023-12-02 08:22:16,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7426 to 7421. [2023-12-02 08:22:16,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7421 states, 4635 states have (on average 1.3400215749730313) internal successors, (6211), 4738 states have internal predecessors, (6211), 2245 states have call successors, (2245), 541 states have call predecessors, (2245), 540 states have return successors, (2244), 2177 states have call predecessors, (2244), 2244 states have call successors, (2244) [2023-12-02 08:22:16,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7421 states to 7421 states and 10700 transitions. [2023-12-02 08:22:16,235 INFO L78 Accepts]: Start accepts. Automaton has 7421 states and 10700 transitions. Word has length 178 [2023-12-02 08:22:16,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:22:16,236 INFO L495 AbstractCegarLoop]: Abstraction has 7421 states and 10700 transitions. [2023-12-02 08:22:16,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-02 08:22:16,237 INFO L276 IsEmpty]: Start isEmpty. Operand 7421 states and 10700 transitions. [2023-12-02 08:22:16,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-12-02 08:22:16,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:22:16,240 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:22:16,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 08:22:16,240 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:22:16,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:22:16,241 INFO L85 PathProgramCache]: Analyzing trace with hash -663258461, now seen corresponding path program 1 times [2023-12-02 08:22:16,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:22:16,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394737738] [2023-12-02 08:22:16,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:22:16,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:22:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:22:16,465 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 928 trivial. 0 not checked. [2023-12-02 08:22:16,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:22:16,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394737738] [2023-12-02 08:22:16,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394737738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:22:16,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:22:16,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 08:22:16,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985098592] [2023-12-02 08:22:16,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:22:16,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:22:16,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:22:16,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:22:16,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:22:16,468 INFO L87 Difference]: Start difference. First operand 7421 states and 10700 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-02 08:22:18,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:20,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:22,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:25,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:27,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:29,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:30,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:22:30,196 INFO L93 Difference]: Finished difference Result 21677 states and 31242 transitions. [2023-12-02 08:22:30,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:22:30,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 204 [2023-12-02 08:22:30,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:22:30,286 INFO L225 Difference]: With dead ends: 21677 [2023-12-02 08:22:30,287 INFO L226 Difference]: Without dead ends: 14301 [2023-12-02 08:22:30,318 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 [2023-12-02 08:22:30,319 INFO L413 NwaCegarLoop]: 3429 mSDtfsCounter, 2334 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 5612 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-12-02 08:22:30,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2334 Valid, 5612 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 470 Invalid, 4 Unknown, 0 Unchecked, 13.3s Time] [2023-12-02 08:22:30,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14301 states. [2023-12-02 08:22:31,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14301 to 14298. [2023-12-02 08:22:31,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14298 states, 8942 states have (on average 1.3401923507045403) internal successors, (11984), 9133 states have internal predecessors, (11984), 4308 states have call successors, (4308), 1048 states have call predecessors, (4308), 1047 states have return successors, (4307), 4180 states have call predecessors, (4307), 4307 states have call successors, (4307) [2023-12-02 08:22:31,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14298 states to 14298 states and 20599 transitions. [2023-12-02 08:22:31,178 INFO L78 Accepts]: Start accepts. Automaton has 14298 states and 20599 transitions. Word has length 204 [2023-12-02 08:22:31,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:22:31,179 INFO L495 AbstractCegarLoop]: Abstraction has 14298 states and 20599 transitions. [2023-12-02 08:22:31,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-02 08:22:31,179 INFO L276 IsEmpty]: Start isEmpty. Operand 14298 states and 20599 transitions. [2023-12-02 08:22:31,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-12-02 08:22:31,193 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:22:31,194 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:22:31,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 08:22:31,194 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:22:31,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:22:31,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1048740454, now seen corresponding path program 1 times [2023-12-02 08:22:31,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:22:31,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624170297] [2023-12-02 08:22:31,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:22:31,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:22:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:22:32,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2387 trivial. 0 not checked. [2023-12-02 08:22:32,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:22:32,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624170297] [2023-12-02 08:22:32,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624170297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:22:32,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:22:32,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 08:22:32,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224185119] [2023-12-02 08:22:32,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:22:32,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:22:32,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:22:32,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:22:32,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:22:32,267 INFO L87 Difference]: Start difference. First operand 14298 states and 20599 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-12-02 08:22:34,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:36,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:39,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:40,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:22:42,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:22:42,001 INFO L93 Difference]: Finished difference Result 28558 states and 41253 transitions. [2023-12-02 08:22:42,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:22:42,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 290 [2023-12-02 08:22:42,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:22:42,077 INFO L225 Difference]: With dead ends: 28558 [2023-12-02 08:22:42,078 INFO L226 Difference]: Without dead ends: 14313 [2023-12-02 08:22:42,115 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 [2023-12-02 08:22:42,115 INFO L413 NwaCegarLoop]: 2254 mSDtfsCounter, 0 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4505 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-12-02 08:22:42,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4505 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 3 Unknown, 0 Unchecked, 9.3s Time] [2023-12-02 08:22:42,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14313 states. [2023-12-02 08:22:42,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14313 to 14313. [2023-12-02 08:22:42,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14313 states, 8957 states have (on average 1.3396226415094339) internal successors, (11999), 9148 states have internal predecessors, (11999), 4308 states have call successors, (4308), 1048 states have call predecessors, (4308), 1047 states have return successors, (4307), 4180 states have call predecessors, (4307), 4307 states have call successors, (4307) [2023-12-02 08:22:42,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14313 states to 14313 states and 20614 transitions. [2023-12-02 08:22:42,666 INFO L78 Accepts]: Start accepts. Automaton has 14313 states and 20614 transitions. Word has length 290 [2023-12-02 08:22:42,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:22:42,667 INFO L495 AbstractCegarLoop]: Abstraction has 14313 states and 20614 transitions. [2023-12-02 08:22:42,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-12-02 08:22:42,667 INFO L276 IsEmpty]: Start isEmpty. Operand 14313 states and 20614 transitions. [2023-12-02 08:22:42,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2023-12-02 08:22:42,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:22:42,678 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:22:42,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 08:22:42,679 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:22:42,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:22:42,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1416653268, now seen corresponding path program 1 times [2023-12-02 08:22:42,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:22:42,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101125990] [2023-12-02 08:22:42,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:22:42,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:22:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:22:43,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2384 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2383 trivial. 0 not checked. [2023-12-02 08:22:43,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:22:43,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101125990] [2023-12-02 08:22:43,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101125990] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:22:43,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743933030] [2023-12-02 08:22:43,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:22:43,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:22:43,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:22:43,828 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:22:43,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635996ea-f364-471c-9eae-188a196add9a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 08:22:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:22:45,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 3264 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:22:45,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:22:45,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2384 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2383 trivial. 0 not checked. [2023-12-02 08:22:45,855 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:22:46,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2384 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2383 trivial. 0 not checked. [2023-12-02 08:22:46,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743933030] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:22:46,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [970520316] [2023-12-02 08:22:46,032 INFO L159 IcfgInterpreter]: Started Sifa with 148 locations of interest [2023-12-02 08:22:46,032 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:22:46,036 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:22:46,041 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:22:46,041 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:28:10,203 INFO L197 IcfgInterpreter]: Interpreting procedure IS_ERR with input of size 180 for LOIs [2023-12-02 08:28:10,990 INFO L197 IcfgInterpreter]: Interpreting procedure ldv__builtin_expect with input of size 180 for LOIs [2023-12-02 08:28:11,072 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 1780 for LOIs [2023-12-02 08:28:41,954 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 166 for LOIs [2023-12-02 08:28:42,092 INFO L197 IcfgInterpreter]: Interpreting procedure sbp_update_unit_directory with input of size 247 for LOIs [2023-12-02 08:28:43,706 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_check_alloc_flags with input of size 291 for LOIs [2023-12-02 08:28:43,891 INFO L197 IcfgInterpreter]: Interpreting procedure sbp_count_se_tpg_luns with input of size 260 for LOIs [2023-12-02 08:28:46,654 INFO L197 IcfgInterpreter]: Interpreting procedure spin_lock with input of size 260 for LOIs [2023-12-02 08:28:47,438 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_spin_lock with input of size 254 for LOIs [2023-12-02 08:28:47,515 INFO L197 IcfgInterpreter]: Interpreting procedure spin_unlock with input of size 172 for LOIs [2023-12-02 08:28:48,557 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_spin_unlock with input of size 172 for LOIs [2023-12-02 08:28:48,687 INFO L197 IcfgInterpreter]: Interpreting procedure kstrtoul with input of size 185 for LOIs [2023-12-02 08:28:48,772 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:29:28,056 WARN L293 SmtUtils]: Spent 39.16s on a formula simplification that was a NOOP. DAG size: 1756 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:29:58,103 WARN L293 SmtUtils]: Spent 29.76s on a formula simplification. DAG size of input: 1780 DAG size of output: 163 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:30:28,528 WARN L293 SmtUtils]: Spent 30.07s on a formula simplification. DAG size of input: 1788 DAG size of output: 171 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:30:58,373 WARN L293 SmtUtils]: Spent 29.51s on a formula simplification. DAG size of input: 1794 DAG size of output: 177 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:31:50,394 WARN L293 SmtUtils]: Spent 50.04s on a formula simplification. DAG size of input: 2758 DAG size of output: 2755 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:32:44,645 WARN L293 SmtUtils]: Spent 51.25s on a formula simplification. DAG size of input: 2762 DAG size of output: 2759 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:34:26,579 WARN L293 SmtUtils]: Spent 6.93s on a formula simplification. DAG size of input: 399 DAG size of output: 396 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:35:00,008 WARN L293 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 396 DAG size of output: 381 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)