./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3b154baf348652a9aadd484f41053a90df6581eb3d7346fd488d4cc05040e74b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:13:41,973 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:13:42,047 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:13:42,053 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:13:42,054 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:13:42,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:13:42,091 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:13:42,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:13:42,093 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:13:42,098 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:13:42,099 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:13:42,100 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:13:42,100 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:13:42,102 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:13:42,102 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:13:42,103 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:13:42,103 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:13:42,104 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:13:42,104 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:13:42,106 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:13:42,107 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:13:42,107 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:13:42,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:13:42,108 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:13:42,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:13:42,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:13:42,110 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:13:42,111 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:13:42,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:13:42,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:13:42,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:13:42,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:13:42,114 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:13:42,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:13:42,114 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:13:42,114 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:13:42,115 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:13:42,115 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:13:42,115 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:13:42,115 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b154baf348652a9aadd484f41053a90df6581eb3d7346fd488d4cc05040e74b [2023-11-21 22:13:42,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:13:42,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:13:42,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:13:42,431 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:13:42,432 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:13:42,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2023-11-21 22:13:45,733 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:13:46,323 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:13:46,324 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2023-11-21 22:13:46,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/data/0623bca9c/dddc751aa2544ce8871d77ea6a7200e2/FLAG1a7452848 [2023-11-21 22:13:46,376 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/data/0623bca9c/dddc751aa2544ce8871d77ea6a7200e2 [2023-11-21 22:13:46,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:13:46,380 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:13:46,383 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:46,383 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:13:46,389 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:13:46,390 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:46" (1/1) ... [2023-11-21 22:13:46,392 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ad48fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:46, skipping insertion in model container [2023-11-21 22:13:46,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:46" (1/1) ... [2023-11-21 22:13:46,531 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:13:47,579 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_1aa78cf6-b9de-4fd5-add4-3707a913dbad/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i[119285,119298] [2023-11-21 22:13:47,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:47,715 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:13:47,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [2827] [2023-11-21 22:13:47,797 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; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [2834-2835] [2023-11-21 22:13:48,057 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_1aa78cf6-b9de-4fd5-add4-3707a913dbad/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i[119285,119298] [2023-11-21 22:13:48,087 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:48,151 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:13:48,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:48 WrapperNode [2023-11-21 22:13:48,152 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:48,154 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:13:48,154 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:13:48,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:13:48,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:48" (1/1) ... [2023-11-21 22:13:48,239 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:48" (1/1) ... [2023-11-21 22:13:48,370 INFO L138 Inliner]: procedures = 144, calls = 819, calls flagged for inlining = 50, calls inlined = 42, statements flattened = 1710 [2023-11-21 22:13:48,371 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:13:48,372 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:13:48,372 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:13:48,372 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:13:48,386 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:48" (1/1) ... [2023-11-21 22:13:48,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:48" (1/1) ... [2023-11-21 22:13:48,417 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:48" (1/1) ... [2023-11-21 22:13:48,586 INFO L187 HeapSplitter]: Split 395 memory accesses to 20 slices as follows [2, 6, 5, 0, 2, 6, 29, 3, 3, 216, 31, 11, 13, 22, 11, 1, 1, 5, 27, 1] [2023-11-21 22:13:48,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:48" (1/1) ... [2023-11-21 22:13:48,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:48" (1/1) ... [2023-11-21 22:13:48,679 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:48" (1/1) ... [2023-11-21 22:13:48,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:48" (1/1) ... [2023-11-21 22:13:48,738 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:48" (1/1) ... [2023-11-21 22:13:48,754 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:48" (1/1) ... [2023-11-21 22:13:48,782 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:13:48,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:13:48,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:13:48,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:13:48,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:48" (1/1) ... [2023-11-21 22:13:48,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:13:48,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:13:48,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:13:48,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:13:48,876 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2023-11-21 22:13:48,877 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2023-11-21 22:13:48,877 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2023-11-21 22:13:48,877 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2023-11-21 22:13:48,877 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2023-11-21 22:13:48,877 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2023-11-21 22:13:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pt_mutex [2023-11-21 22:13:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pt_mutex [2023-11-21 22:13:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2023-11-21 22:13:48,880 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2023-11-21 22:13:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:13:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 22:13:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 22:13:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 22:13:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 22:13:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-21 22:13:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-21 22:13:48,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-21 22:13:48,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-21 22:13:48,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-21 22:13:48,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-21 22:13:48,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-21 22:13:48,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-21 22:13:48,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-21 22:13:48,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-21 22:13:48,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-21 22:13:48,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-21 22:13:48,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-21 22:13:48,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-21 22:13:48,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-11-21 22:13:48,887 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2023-11-21 22:13:48,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2023-11-21 22:13:48,887 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2023-11-21 22:13:48,887 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2023-11-21 22:13:48,887 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2023-11-21 22:13:48,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2023-11-21 22:13:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:13:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:13:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2023-11-21 22:13:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2023-11-21 22:13:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2023-11-21 22:13:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2023-11-21 22:13:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2023-11-21 22:13:48,889 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2023-11-21 22:13:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:13:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 22:13:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 22:13:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 22:13:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 22:13:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-21 22:13:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-21 22:13:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-21 22:13:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-21 22:13:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-21 22:13:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-21 22:13:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-21 22:13:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-21 22:13:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-21 22:13:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-21 22:13:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-21 22:13:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-21 22:13:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-21 22:13:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-21 22:13:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-11-21 22:13:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 22:13:48,894 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 22:13:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write [2023-11-21 22:13:48,895 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write [2023-11-21 22:13:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 22:13:48,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 22:13:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 22:13:48,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 22:13:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2023-11-21 22:13:48,896 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2023-11-21 22:13:48,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:13:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2023-11-21 22:13:48,897 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2023-11-21 22:13:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pt_mutex [2023-11-21 22:13:48,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pt_mutex [2023-11-21 22:13:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-21 22:13:48,898 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-21 22:13:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2023-11-21 22:13:48,898 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2023-11-21 22:13:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-21 22:13:48,898 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-21 22:13:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:13:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_17 [2023-11-21 22:13:48,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_17 [2023-11-21 22:13:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-21 22:13:48,900 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-21 22:13:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-21 22:13:48,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-21 22:13:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-21 22:13:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-21 22:13:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-21 22:13:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-21 22:13:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-21 22:13:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-21 22:13:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-21 22:13:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-21 22:13:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-21 22:13:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-21 22:13:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-21 22:13:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-21 22:13:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-21 22:13:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-21 22:13:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-21 22:13:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-21 22:13:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-21 22:13:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-11-21 22:13:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-11-21 22:13:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2023-11-21 22:13:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:13:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2023-11-21 22:13:48,904 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2023-11-21 22:13:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2023-11-21 22:13:48,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2023-11-21 22:13:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-21 22:13:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-21 22:13:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-21 22:13:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-21 22:13:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-21 22:13:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-21 22:13:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-21 22:13:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-21 22:13:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-21 22:13:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-21 22:13:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-21 22:13:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-21 22:13:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-21 22:13:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-21 22:13:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-21 22:13:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-21 22:13:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-21 22:13:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-11-21 22:13:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-11-21 22:13:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2023-11-21 22:13:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2023-11-21 22:13:48,910 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2023-11-21 22:13:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2023-11-21 22:13:48,911 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2023-11-21 22:13:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-21 22:13:48,911 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-21 22:13:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2023-11-21 22:13:48,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2023-11-21 22:13:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:13:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-21 22:13:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-21 22:13:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-21 22:13:48,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-21 22:13:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-21 22:13:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-21 22:13:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-21 22:13:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-21 22:13:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-21 22:13:48,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-21 22:13:48,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-21 22:13:48,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-21 22:13:48,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-21 22:13:48,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-21 22:13:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-21 22:13:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-21 22:13:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-11-21 22:13:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-11-21 22:13:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2023-11-21 22:13:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2023-11-21 22:13:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2023-11-21 22:13:48,928 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2023-11-21 22:13:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2023-11-21 22:13:48,928 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2023-11-21 22:13:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-21 22:13:48,928 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-21 22:13:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 22:13:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 22:13:48,929 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2023-11-21 22:13:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2023-11-21 22:13:48,929 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2023-11-21 22:13:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2023-11-21 22:13:48,976 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2023-11-21 22:13:48,977 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2023-11-21 22:13:48,977 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2023-11-21 22:13:48,977 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2023-11-21 22:13:48,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:13:48,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:13:48,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 22:13:48,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 22:13:48,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 22:13:48,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 22:13:48,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-21 22:13:48,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-21 22:13:48,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-21 22:13:48,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-21 22:13:48,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-21 22:13:48,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-21 22:13:48,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-21 22:13:48,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-21 22:13:48,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-21 22:13:48,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-21 22:13:48,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-21 22:13:48,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-21 22:13:48,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-21 22:13:48,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-21 22:13:48,979 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2023-11-21 22:13:48,979 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2023-11-21 22:13:48,979 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2023-11-21 22:13:48,979 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2023-11-21 22:13:48,979 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2023-11-21 22:13:48,980 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2023-11-21 22:13:48,980 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-21 22:13:48,980 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-21 22:13:48,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:13:48,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:13:48,980 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2023-11-21 22:13:48,980 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2023-11-21 22:13:49,474 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:13:49,478 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:13:58,689 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:13:59,996 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:13:59,996 INFO L308 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-21 22:13:59,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:13:59 BoogieIcfgContainer [2023-11-21 22:13:59,999 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:14:00,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:14:00,006 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:14:00,010 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:14:00,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:13:46" (1/3) ... [2023-11-21 22:14:00,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152e401a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:14:00, skipping insertion in model container [2023-11-21 22:14:00,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:48" (2/3) ... [2023-11-21 22:14:00,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152e401a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:14:00, skipping insertion in model container [2023-11-21 22:14:00,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:13:59" (3/3) ... [2023-11-21 22:14:00,015 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2023-11-21 22:14:00,042 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:14:00,042 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:14:00,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:14:00,154 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=PETRI_NET, 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;@6f01386f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:14:00,154 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:14:00,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 612 states, 379 states have (on average 1.358839050131926) internal successors, (515), 400 states have internal predecessors, (515), 191 states have call successors, (191), 44 states have call predecessors, (191), 44 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2023-11-21 22:14:00,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 22:14:00,186 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:00,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:14:00,187 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:14:00,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:00,198 INFO L85 PathProgramCache]: Analyzing trace with hash 67436831, now seen corresponding path program 1 times [2023-11-21 22:14:00,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:00,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193300760] [2023-11-21 22:14:00,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:00,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:00,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:14:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:00,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:00,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:00,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193300760] [2023-11-21 22:14:00,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193300760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:00,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:00,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:14:00,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191426448] [2023-11-21 22:14:00,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:00,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:00,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:01,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:01,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:01,021 INFO L87 Difference]: Start difference. First operand has 612 states, 379 states have (on average 1.358839050131926) internal successors, (515), 400 states have internal predecessors, (515), 191 states have call successors, (191), 44 states have call predecessors, (191), 44 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:14:03,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:03,184 INFO L93 Difference]: Finished difference Result 1503 states and 2237 transitions. [2023-11-21 22:14:03,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:03,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-11-21 22:14:03,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:03,213 INFO L225 Difference]: With dead ends: 1503 [2023-11-21 22:14:03,213 INFO L226 Difference]: Without dead ends: 888 [2023-11-21 22:14:03,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:03,230 INFO L413 NwaCegarLoop]: 966 mSDtfsCounter, 417 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:03,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1696 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-21 22:14:03,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2023-11-21 22:14:03,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 866. [2023-11-21 22:14:03,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 532 states have (on average 1.349624060150376) internal successors, (718), 553 states have internal predecessors, (718), 266 states have call successors, (266), 68 states have call predecessors, (266), 67 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2023-11-21 22:14:03,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1244 transitions. [2023-11-21 22:14:03,400 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1244 transitions. Word has length 16 [2023-11-21 22:14:03,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:03,400 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 1244 transitions. [2023-11-21 22:14:03,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:14:03,401 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1244 transitions. [2023-11-21 22:14:03,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 22:14:03,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:03,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:14:03,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:14:03,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:14:03,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:03,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1006012198, now seen corresponding path program 1 times [2023-11-21 22:14:03,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:03,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773045197] [2023-11-21 22:14:03,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:03,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:03,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:03,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:03,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773045197] [2023-11-21 22:14:03,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773045197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:03,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:03,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:03,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485299004] [2023-11-21 22:14:03,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:03,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:03,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:03,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:03,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:03,601 INFO L87 Difference]: Start difference. First operand 866 states and 1244 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:04,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:04,750 INFO L93 Difference]: Finished difference Result 1731 states and 2487 transitions. [2023-11-21 22:14:04,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:04,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-21 22:14:04,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:04,762 INFO L225 Difference]: With dead ends: 1731 [2023-11-21 22:14:04,762 INFO L226 Difference]: Without dead ends: 866 [2023-11-21 22:14:04,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:04,768 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 855 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:04,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 753 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-21 22:14:04,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2023-11-21 22:14:04,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2023-11-21 22:14:04,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 532 states have (on average 1.3458646616541354) internal successors, (716), 553 states have internal predecessors, (716), 266 states have call successors, (266), 68 states have call predecessors, (266), 67 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2023-11-21 22:14:04,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1242 transitions. [2023-11-21 22:14:04,857 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1242 transitions. Word has length 15 [2023-11-21 22:14:04,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:04,857 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 1242 transitions. [2023-11-21 22:14:04,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:04,858 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1242 transitions. [2023-11-21 22:14:04,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 22:14:04,862 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:04,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:14:04,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:14:04,862 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:14:04,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:04,863 INFO L85 PathProgramCache]: Analyzing trace with hash -647652429, now seen corresponding path program 1 times [2023-11-21 22:14:04,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:04,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756560987] [2023-11-21 22:14:04,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:04,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:05,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-21 22:14:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:05,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:05,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:05,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756560987] [2023-11-21 22:14:05,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756560987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:05,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:05,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:14:05,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144391188] [2023-11-21 22:14:05,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:05,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:14:05,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:05,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:14:05,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:14:05,118 INFO L87 Difference]: Start difference. First operand 866 states and 1242 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:14:10,602 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 [] [2023-11-21 22:14:12,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:14:15,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:14:21,192 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 [] [2023-11-21 22:14:22,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:22,615 INFO L93 Difference]: Finished difference Result 1922 states and 2737 transitions. [2023-11-21 22:14:22,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:14:22,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-21 22:14:22,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:22,628 INFO L225 Difference]: With dead ends: 1922 [2023-11-21 22:14:22,628 INFO L226 Difference]: Without dead ends: 1057 [2023-11-21 22:14:22,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:14:22,642 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 634 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 257 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:22,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 635 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 1437 Invalid, 4 Unknown, 0 Unchecked, 17.2s Time] [2023-11-21 22:14:22,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2023-11-21 22:14:22,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 1057. [2023-11-21 22:14:22,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 646 states have (on average 1.3328173374613004) internal successors, (861), 672 states have internal predecessors, (861), 319 states have call successors, (319), 92 states have call predecessors, (319), 91 states have return successors, (313), 313 states have call predecessors, (313), 313 states have call successors, (313) [2023-11-21 22:14:22,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1493 transitions. [2023-11-21 22:14:22,749 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1493 transitions. Word has length 17 [2023-11-21 22:14:22,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:22,750 INFO L495 AbstractCegarLoop]: Abstraction has 1057 states and 1493 transitions. [2023-11-21 22:14:22,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:14:22,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1493 transitions. [2023-11-21 22:14:22,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 22:14:22,751 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:22,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:14:22,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:14:22,752 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:14:22,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:22,753 INFO L85 PathProgramCache]: Analyzing trace with hash -553275270, now seen corresponding path program 1 times [2023-11-21 22:14:22,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:22,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710891018] [2023-11-21 22:14:22,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:22,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:23,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-21 22:14:23,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:23,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:23,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:23,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710891018] [2023-11-21 22:14:23,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710891018] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:23,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:23,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:14:23,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717942728] [2023-11-21 22:14:23,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:23,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:23,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:23,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:23,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:23,029 INFO L87 Difference]: Start difference. First operand 1057 states and 1493 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:14:25,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:25,595 INFO L93 Difference]: Finished difference Result 2128 states and 3012 transitions. [2023-11-21 22:14:25,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:25,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2023-11-21 22:14:25,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:25,608 INFO L225 Difference]: With dead ends: 2128 [2023-11-21 22:14:25,608 INFO L226 Difference]: Without dead ends: 1081 [2023-11-21 22:14:25,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:25,619 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 12 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:25,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1498 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-21 22:14:25,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2023-11-21 22:14:25,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1059. [2023-11-21 22:14:25,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1059 states, 648 states have (on average 1.3317901234567902) internal successors, (863), 674 states have internal predecessors, (863), 319 states have call successors, (319), 92 states have call predecessors, (319), 91 states have return successors, (313), 313 states have call predecessors, (313), 313 states have call successors, (313) [2023-11-21 22:14:25,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1495 transitions. [2023-11-21 22:14:25,719 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1495 transitions. Word has length 24 [2023-11-21 22:14:25,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:25,720 INFO L495 AbstractCegarLoop]: Abstraction has 1059 states and 1495 transitions. [2023-11-21 22:14:25,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:14:25,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1495 transitions. [2023-11-21 22:14:25,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-21 22:14:25,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:25,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:14:25,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:14:25,725 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:14:25,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:25,725 INFO L85 PathProgramCache]: Analyzing trace with hash -113807816, now seen corresponding path program 1 times [2023-11-21 22:14:25,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:25,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378631630] [2023-11-21 22:14:25,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:25,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:25,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-21 22:14:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:25,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:14:25,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:25,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378631630] [2023-11-21 22:14:25,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378631630] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:25,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:25,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:14:25,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673363295] [2023-11-21 22:14:25,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:25,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:25,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:25,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:25,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:25,945 INFO L87 Difference]: Start difference. First operand 1059 states and 1495 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:14:28,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:28,705 INFO L93 Difference]: Finished difference Result 2126 states and 3006 transitions. [2023-11-21 22:14:28,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:28,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2023-11-21 22:14:28,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:28,717 INFO L225 Difference]: With dead ends: 2126 [2023-11-21 22:14:28,717 INFO L226 Difference]: Without dead ends: 1077 [2023-11-21 22:14:28,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:28,724 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 12 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:28,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1496 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-21 22:14:28,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2023-11-21 22:14:28,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1069. [2023-11-21 22:14:28,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 658 states have (on average 1.3358662613981762) internal successors, (879), 684 states have internal predecessors, (879), 319 states have call successors, (319), 92 states have call predecessors, (319), 91 states have return successors, (313), 313 states have call predecessors, (313), 313 states have call successors, (313) [2023-11-21 22:14:28,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1511 transitions. [2023-11-21 22:14:28,834 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1511 transitions. Word has length 28 [2023-11-21 22:14:28,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:28,835 INFO L495 AbstractCegarLoop]: Abstraction has 1069 states and 1511 transitions. [2023-11-21 22:14:28,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:14:28,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1511 transitions. [2023-11-21 22:14:28,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-21 22:14:28,837 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:28,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:14:28,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:14:28,838 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:14:28,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:28,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1291001768, now seen corresponding path program 1 times [2023-11-21 22:14:28,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:28,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195763318] [2023-11-21 22:14:28,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:28,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:29,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-21 22:14:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:29,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-21 22:14:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:29,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:29,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:29,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195763318] [2023-11-21 22:14:29,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195763318] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:14:29,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725514846] [2023-11-21 22:14:29,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:29,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:14:29,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:29,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:14:29,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:14:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:29,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:14:29,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:14:29,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:14:29,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:14:29,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725514846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:29,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:14:29,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-21 22:14:29,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693729453] [2023-11-21 22:14:29,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:29,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:29,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:29,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:29,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:14:29,942 INFO L87 Difference]: Start difference. First operand 1069 states and 1511 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:14:32,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:32,286 INFO L93 Difference]: Finished difference Result 2174 states and 3084 transitions. [2023-11-21 22:14:32,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:32,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2023-11-21 22:14:32,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:32,298 INFO L225 Difference]: With dead ends: 2174 [2023-11-21 22:14:32,298 INFO L226 Difference]: Without dead ends: 1115 [2023-11-21 22:14:32,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:14:32,306 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 15 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:32,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1496 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-21 22:14:32,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-11-21 22:14:32,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1113. [2023-11-21 22:14:32,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 690 states have (on average 1.3434782608695652) internal successors, (927), 716 states have internal predecessors, (927), 331 states have call successors, (331), 92 states have call predecessors, (331), 91 states have return successors, (325), 325 states have call predecessors, (325), 325 states have call successors, (325) [2023-11-21 22:14:32,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1583 transitions. [2023-11-21 22:14:32,424 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1583 transitions. Word has length 33 [2023-11-21 22:14:32,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:32,425 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 1583 transitions. [2023-11-21 22:14:32,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:14:32,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1583 transitions. [2023-11-21 22:14:32,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-21 22:14:32,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:32,432 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:14:32,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:14:32,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-21 22:14:32,647 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:14:32,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:32,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1924727762, now seen corresponding path program 1 times [2023-11-21 22:14:32,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:32,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069378704] [2023-11-21 22:14:32,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:32,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:32,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-21 22:14:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:32,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-21 22:14:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:32,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 22:14:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:32,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:14:32,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:33,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069378704] [2023-11-21 22:14:33,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069378704] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:14:33,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831856929] [2023-11-21 22:14:33,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:33,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:14:33,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:33,004 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:14:33,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:14:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:33,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:14:33,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:14:33,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 22:14:33,846 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:14:33,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831856929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:33,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:14:33,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-21 22:14:33,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599100684] [2023-11-21 22:14:33,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:33,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:33,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:33,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:33,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:14:33,848 INFO L87 Difference]: Start difference. First operand 1113 states and 1583 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:14:35,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:35,310 INFO L93 Difference]: Finished difference Result 1115 states and 1584 transitions. [2023-11-21 22:14:35,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:35,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2023-11-21 22:14:35,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:35,323 INFO L225 Difference]: With dead ends: 1115 [2023-11-21 22:14:35,323 INFO L226 Difference]: Without dead ends: 1112 [2023-11-21 22:14:35,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:14:35,326 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 828 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:35,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 751 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-21 22:14:35,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2023-11-21 22:14:35,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1112. [2023-11-21 22:14:35,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 690 states have (on average 1.3420289855072465) internal successors, (926), 715 states have internal predecessors, (926), 330 states have call successors, (330), 92 states have call predecessors, (330), 91 states have return successors, (325), 325 states have call predecessors, (325), 325 states have call successors, (325) [2023-11-21 22:14:35,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1581 transitions. [2023-11-21 22:14:35,433 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1581 transitions. Word has length 37 [2023-11-21 22:14:35,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:35,435 INFO L495 AbstractCegarLoop]: Abstraction has 1112 states and 1581 transitions. [2023-11-21 22:14:35,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:14:35,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1581 transitions. [2023-11-21 22:14:35,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-21 22:14:35,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:35,438 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:14:35,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:14:35,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:14:35,663 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:14:35,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:35,664 INFO L85 PathProgramCache]: Analyzing trace with hash -463394889, now seen corresponding path program 1 times [2023-11-21 22:14:35,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:35,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803938865] [2023-11-21 22:14:35,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:35,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:35,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-21 22:14:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:35,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-21 22:14:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:35,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 22:14:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:35,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:14:35,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:35,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803938865] [2023-11-21 22:14:35,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803938865] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:14:35,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790709806] [2023-11-21 22:14:35,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:35,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:14:35,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:35,952 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:14:35,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa78cf6-b9de-4fd5-add4-3707a913dbad/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:14:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:36,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:14:36,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:14:36,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 22:14:36,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:14:36,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790709806] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:36,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:14:36,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-21 22:14:36,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636276286] [2023-11-21 22:14:36,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:36,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:36,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:36,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:36,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:14:36,724 INFO L87 Difference]: Start difference. First operand 1112 states and 1581 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)