./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--pg.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 410663f06ff647e412b04b4e33dc5a0aa773139e9be33f59003b35b6e81927a8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:34:00,402 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:34:00,540 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:34:00,551 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:34:00,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:34:00,610 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:34:00,612 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:34:00,613 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:34:00,614 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:34:00,620 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:34:00,621 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:34:00,621 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:34:00,622 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:34:00,624 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:34:00,624 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:34:00,625 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:34:00,625 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:34:00,626 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:34:00,635 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:34:00,636 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:34:00,637 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:34:00,637 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:34:00,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:34:00,639 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:34:00,640 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:34:00,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:34:00,641 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:34:00,641 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:34:00,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:34:00,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:34:00,644 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:34:00,644 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:34:00,644 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:34:00,645 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:34:00,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:00,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:34:00,646 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:34:00,646 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:34:00,646 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:34:00,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:34:00,647 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:34:00,647 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:34:00,647 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:34:00,648 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:34:00,648 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 410663f06ff647e412b04b4e33dc5a0aa773139e9be33f59003b35b6e81927a8 [2023-11-23 20:34:01,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:34:01,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:34:01,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:34:01,110 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:34:01,110 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:34:01,112 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2023-11-23 20:34:04,213 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:34:04,888 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:34:04,889 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2023-11-23 20:34:04,939 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/data/5971ef6ab/ff15a933b3994cc89c068239557ee322/FLAG83161beae [2023-11-23 20:34:04,967 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/data/5971ef6ab/ff15a933b3994cc89c068239557ee322 [2023-11-23 20:34:04,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:34:04,976 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:34:04,980 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:04,981 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:34:04,989 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:34:04,990 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,991 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b3d2817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04, skipping insertion in model container [2023-11-23 20:34:04,992 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:05,123 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:34:06,233 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_c3026ec9-11c1-450b-921b-6ace84a19c44/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i[108133,108146] [2023-11-23 20:34:06,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:06,382 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:34:06,622 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; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [2808] [2023-11-23 20:34:06,625 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; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [2815-2816] [2023-11-23 20:34:06,774 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_c3026ec9-11c1-450b-921b-6ace84a19c44/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i[108133,108146] [2023-11-23 20:34:06,798 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:06,836 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:06,846 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:34:06,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:06 WrapperNode [2023-11-23 20:34:06,846 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:06,848 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:06,848 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:34:06,848 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:34:06,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:06" (1/1) ... [2023-11-23 20:34:06,933 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:06" (1/1) ... [2023-11-23 20:34:07,025 INFO L138 Inliner]: procedures = 131, calls = 541, calls flagged for inlining = 49, calls inlined = 41, statements flattened = 1270 [2023-11-23 20:34:07,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:07,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:34:07,027 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:34:07,027 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:34:07,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:06" (1/1) ... [2023-11-23 20:34:07,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:06" (1/1) ... [2023-11-23 20:34:07,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:06" (1/1) ... [2023-11-23 20:34:07,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:06" (1/1) ... [2023-11-23 20:34:07,116 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:06" (1/1) ... [2023-11-23 20:34:07,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:06" (1/1) ... [2023-11-23 20:34:07,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:06" (1/1) ... [2023-11-23 20:34:07,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:06" (1/1) ... [2023-11-23 20:34:07,163 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:34:07,164 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:34:07,164 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:34:07,165 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:34:07,165 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:06" (1/1) ... [2023-11-23 20:34:07,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:07,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:07,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:34:07,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:34:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2023-11-23 20:34:07,262 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2023-11-23 20:34:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2023-11-23 20:34:07,264 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2023-11-23 20:34:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2023-11-23 20:34:07,265 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2023-11-23 20:34:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2023-11-23 20:34:07,266 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2023-11-23 20:34:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:34:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2023-11-23 20:34:07,266 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2023-11-23 20:34:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:34:07,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:34:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure pg_sleep [2023-11-23 20:34:07,267 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_sleep [2023-11-23 20:34:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure pg_completion [2023-11-23 20:34:07,268 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_completion [2023-11-23 20:34:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:34:07,269 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 20:34:07,269 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 20:34:07,269 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 20:34:07,270 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 20:34:07,271 INFO L130 BoogieDeclarations]: Found specification of procedure pg_wait [2023-11-23 20:34:07,271 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_wait [2023-11-23 20:34:07,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 20:34:07,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 20:34:07,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:34:07,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:34:07,273 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 20:34:07,273 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 20:34:07,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:34:07,274 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 20:34:07,275 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 20:34:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-23 20:34:07,275 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-23 20:34:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:34:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_11 [2023-11-23 20:34:07,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_11 [2023-11-23 20:34:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:34:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:34:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2023-11-23 20:34:07,276 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2023-11-23 20:34:07,277 INFO L130 BoogieDeclarations]: Found specification of procedure pg_write [2023-11-23 20:34:07,277 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_write [2023-11-23 20:34:07,277 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 20:34:07,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:34:07,277 INFO L130 BoogieDeclarations]: Found specification of procedure pg_reset [2023-11-23 20:34:07,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_reset [2023-11-23 20:34:07,278 INFO L130 BoogieDeclarations]: Found specification of procedure pg_identify [2023-11-23 20:34:07,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_identify [2023-11-23 20:34:07,278 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2023-11-23 20:34:07,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2023-11-23 20:34:07,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:34:07,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:34:07,279 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2023-11-23 20:34:07,279 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2023-11-23 20:34:07,280 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2023-11-23 20:34:07,280 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2023-11-23 20:34:07,280 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-23 20:34:07,281 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-23 20:34:07,282 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:34:07,282 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:34:07,283 INFO L130 BoogieDeclarations]: Found specification of procedure pg_probe [2023-11-23 20:34:07,283 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_probe [2023-11-23 20:34:07,283 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2023-11-23 20:34:07,283 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2023-11-23 20:34:07,283 INFO L130 BoogieDeclarations]: Found specification of procedure pg_command [2023-11-23 20:34:07,283 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_command [2023-11-23 20:34:07,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:34:07,284 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-23 20:34:07,284 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-23 20:34:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:34:07,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:34:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2023-11-23 20:34:07,285 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2023-11-23 20:34:07,764 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:34:07,770 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:34:10,029 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:34:10,537 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:34:10,537 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:34:10,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:10 BoogieIcfgContainer [2023-11-23 20:34:10,540 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:34:10,543 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:34:10,544 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:34:10,547 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:34:10,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:34:04" (1/3) ... [2023-11-23 20:34:10,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a0160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:10, skipping insertion in model container [2023-11-23 20:34:10,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:06" (2/3) ... [2023-11-23 20:34:10,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a0160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:10, skipping insertion in model container [2023-11-23 20:34:10,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:10" (3/3) ... [2023-11-23 20:34:10,551 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2023-11-23 20:34:10,574 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:34:10,574 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:34:10,644 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:34:10,652 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@14db3277, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:34:10,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:34:10,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 379 states, 244 states have (on average 1.3975409836065573) internal successors, (341), 254 states have internal predecessors, (341), 102 states have call successors, (102), 31 states have call predecessors, (102), 31 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2023-11-23 20:34:10,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 20:34:10,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:10,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:10,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:10,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:10,683 INFO L85 PathProgramCache]: Analyzing trace with hash -518891856, now seen corresponding path program 1 times [2023-11-23 20:34:10,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:10,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980663852] [2023-11-23 20:34:10,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:10,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:11,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:34:11,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:11,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980663852] [2023-11-23 20:34:11,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980663852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:11,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:11,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:34:11,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492274939] [2023-11-23 20:34:11,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:11,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:34:11,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:11,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:34:11,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:34:11,328 INFO L87 Difference]: Start difference. First operand has 379 states, 244 states have (on average 1.3975409836065573) internal successors, (341), 254 states have internal predecessors, (341), 102 states have call successors, (102), 31 states have call predecessors, (102), 31 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:34:12,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:12,049 INFO L93 Difference]: Finished difference Result 995 states and 1427 transitions. [2023-11-23 20:34:12,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:34:12,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-23 20:34:12,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:12,074 INFO L225 Difference]: With dead ends: 995 [2023-11-23 20:34:12,074 INFO L226 Difference]: Without dead ends: 613 [2023-11-23 20:34:12,084 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 [2023-11-23 20:34:12,088 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 339 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:12,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 981 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 20:34:12,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2023-11-23 20:34:12,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 599. [2023-11-23 20:34:12,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 383 states have (on average 1.3681462140992167) internal successors, (524), 393 states have internal predecessors, (524), 165 states have call successors, (165), 51 states have call predecessors, (165), 50 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2023-11-23 20:34:12,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 848 transitions. [2023-11-23 20:34:12,268 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 848 transitions. Word has length 13 [2023-11-23 20:34:12,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:12,269 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 848 transitions. [2023-11-23 20:34:12,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:34:12,269 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 848 transitions. [2023-11-23 20:34:12,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 20:34:12,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:12,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:12,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:34:12,273 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:12,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:12,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1863888221, now seen corresponding path program 1 times [2023-11-23 20:34:12,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:12,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722621449] [2023-11-23 20:34:12,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:12,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:12,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:34:12,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:12,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722621449] [2023-11-23 20:34:12,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722621449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:12,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:12,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:34:12,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458164995] [2023-11-23 20:34:12,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:12,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:34:12,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:12,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:34:12,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:34:12,420 INFO L87 Difference]: Start difference. First operand 599 states and 848 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) [2023-11-23 20:34:12,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:12,829 INFO L93 Difference]: Finished difference Result 1197 states and 1695 transitions. [2023-11-23 20:34:12,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:34:12,830 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 [2023-11-23 20:34:12,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:12,837 INFO L225 Difference]: With dead ends: 1197 [2023-11-23 20:34:12,837 INFO L226 Difference]: Without dead ends: 599 [2023-11-23 20:34:12,840 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 [2023-11-23 20:34:12,842 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 527 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:12,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 456 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 20:34:12,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2023-11-23 20:34:12,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2023-11-23 20:34:12,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 383 states have (on average 1.3629242819843341) internal successors, (522), 393 states have internal predecessors, (522), 165 states have call successors, (165), 51 states have call predecessors, (165), 50 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2023-11-23 20:34:12,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 846 transitions. [2023-11-23 20:34:12,907 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 846 transitions. Word has length 15 [2023-11-23 20:34:12,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:12,908 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 846 transitions. [2023-11-23 20:34:12,908 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) [2023-11-23 20:34:12,908 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 846 transitions. [2023-11-23 20:34:12,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 20:34:12,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:12,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:12,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:34:12,910 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:12,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:12,911 INFO L85 PathProgramCache]: Analyzing trace with hash 513748313, now seen corresponding path program 1 times [2023-11-23 20:34:12,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:12,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795056596] [2023-11-23 20:34:12,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:12,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:13,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:34:13,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:13,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795056596] [2023-11-23 20:34:13,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795056596] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:13,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:13,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:34:13,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992232464] [2023-11-23 20:34:13,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:13,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:34:13,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:13,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:34:13,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:34:13,216 INFO L87 Difference]: Start difference. First operand 599 states and 846 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) 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) [2023-11-23 20:34:13,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:13,793 INFO L93 Difference]: Finished difference Result 1373 states and 1925 transitions. [2023-11-23 20:34:13,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:34:13,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) 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 [2023-11-23 20:34:13,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:13,802 INFO L225 Difference]: With dead ends: 1373 [2023-11-23 20:34:13,802 INFO L226 Difference]: Without dead ends: 775 [2023-11-23 20:34:13,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:34:13,808 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 334 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:13,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 896 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 20:34:13,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2023-11-23 20:34:13,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 775. [2023-11-23 20:34:13,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 488 states have (on average 1.3381147540983607) internal successors, (653), 500 states have internal predecessors, (653), 215 states have call successors, (215), 72 states have call predecessors, (215), 71 states have return successors, (209), 209 states have call predecessors, (209), 209 states have call successors, (209) [2023-11-23 20:34:13,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1077 transitions. [2023-11-23 20:34:13,903 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1077 transitions. Word has length 17 [2023-11-23 20:34:13,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:13,904 INFO L495 AbstractCegarLoop]: Abstraction has 775 states and 1077 transitions. [2023-11-23 20:34:13,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) 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) [2023-11-23 20:34:13,904 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1077 transitions. [2023-11-23 20:34:13,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 20:34:13,906 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:13,906 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] [2023-11-23 20:34:13,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:34:13,907 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:13,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:13,908 INFO L85 PathProgramCache]: Analyzing trace with hash -465754476, now seen corresponding path program 1 times [2023-11-23 20:34:13,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:13,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905641346] [2023-11-23 20:34:13,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:13,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:14,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:34:14,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:14,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905641346] [2023-11-23 20:34:14,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905641346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:14,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:14,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:34:14,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054756345] [2023-11-23 20:34:14,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:14,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:34:14,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:14,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:34:14,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:34:14,062 INFO L87 Difference]: Start difference. First operand 775 states and 1077 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (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) [2023-11-23 20:34:14,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:14,487 INFO L93 Difference]: Finished difference Result 1548 states and 2154 transitions. [2023-11-23 20:34:14,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:34:14,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (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 [2023-11-23 20:34:14,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:14,494 INFO L225 Difference]: With dead ends: 1548 [2023-11-23 20:34:14,494 INFO L226 Difference]: Without dead ends: 783 [2023-11-23 20:34:14,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:34:14,499 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 3 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:14,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 913 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 20:34:14,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2023-11-23 20:34:14,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 777. [2023-11-23 20:34:14,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 490 states have (on average 1.336734693877551) internal successors, (655), 502 states have internal predecessors, (655), 215 states have call successors, (215), 72 states have call predecessors, (215), 71 states have return successors, (209), 209 states have call predecessors, (209), 209 states have call successors, (209) [2023-11-23 20:34:14,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1079 transitions. [2023-11-23 20:34:14,591 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1079 transitions. Word has length 24 [2023-11-23 20:34:14,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:14,591 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 1079 transitions. [2023-11-23 20:34:14,591 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), 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) [2023-11-23 20:34:14,592 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1079 transitions. [2023-11-23 20:34:14,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 20:34:14,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:14,602 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] [2023-11-23 20:34:14,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 20:34:14,603 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:14,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:14,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1214826266, now seen corresponding path program 1 times [2023-11-23 20:34:14,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:14,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850757913] [2023-11-23 20:34:14,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:14,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:14,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:14,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:34:14,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:14,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850757913] [2023-11-23 20:34:14,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850757913] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:34:14,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793742793] [2023-11-23 20:34:14,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:14,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:34:14,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:14,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:34:14,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:34:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:15,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:34:15,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:15,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:34:15,282 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:34:15,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793742793] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:15,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 20:34:15,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-23 20:34:15,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907798594] [2023-11-23 20:34:15,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:15,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:34:15,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:15,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:34:15,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:34:15,288 INFO L87 Difference]: Start difference. First operand 777 states and 1079 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, (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) [2023-11-23 20:34:15,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:15,700 INFO L93 Difference]: Finished difference Result 1570 states and 2186 transitions. [2023-11-23 20:34:15,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:34:15,701 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, (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 30 [2023-11-23 20:34:15,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:15,707 INFO L225 Difference]: With dead ends: 1570 [2023-11-23 20:34:15,707 INFO L226 Difference]: Without dead ends: 803 [2023-11-23 20:34:15,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:34:15,712 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 20 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:15,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 893 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 20:34:15,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2023-11-23 20:34:15,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 801. [2023-11-23 20:34:15,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 508 states have (on average 1.3405511811023623) internal successors, (681), 520 states have internal predecessors, (681), 221 states have call successors, (221), 72 states have call predecessors, (221), 71 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2023-11-23 20:34:15,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1117 transitions. [2023-11-23 20:34:15,802 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1117 transitions. Word has length 30 [2023-11-23 20:34:15,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:15,803 INFO L495 AbstractCegarLoop]: Abstraction has 801 states and 1117 transitions. [2023-11-23 20:34:15,803 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, (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) [2023-11-23 20:34:15,803 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1117 transitions. [2023-11-23 20:34:15,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-23 20:34:15,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:15,807 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] [2023-11-23 20:34:15,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:34:16,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:34:16,026 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:16,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:16,027 INFO L85 PathProgramCache]: Analyzing trace with hash 987851818, now seen corresponding path program 1 times [2023-11-23 20:34:16,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:16,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323126125] [2023-11-23 20:34:16,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:16,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:16,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:34:16,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:16,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323126125] [2023-11-23 20:34:16,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323126125] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:34:16,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32273078] [2023-11-23 20:34:16,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:16,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:34:16,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:16,214 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:34:16,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 20:34:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:16,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:34:16,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:16,654 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 20:34:16,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:34:16,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32273078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:16,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 20:34:16,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-23 20:34:16,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137447688] [2023-11-23 20:34:16,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:16,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:34:16,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:16,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:34:16,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:34:16,657 INFO L87 Difference]: Start difference. First operand 801 states and 1117 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2023-11-23 20:34:16,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:16,984 INFO L93 Difference]: Finished difference Result 803 states and 1118 transitions. [2023-11-23 20:34:16,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:34:16,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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 34 [2023-11-23 20:34:16,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:16,992 INFO L225 Difference]: With dead ends: 803 [2023-11-23 20:34:16,992 INFO L226 Difference]: Without dead ends: 800 [2023-11-23 20:34:16,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:34:16,995 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 503 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:16,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 454 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 20:34:16,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2023-11-23 20:34:17,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 800. [2023-11-23 20:34:17,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 508 states have (on average 1.3385826771653544) internal successors, (680), 519 states have internal predecessors, (680), 220 states have call successors, (220), 72 states have call predecessors, (220), 71 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2023-11-23 20:34:17,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1115 transitions. [2023-11-23 20:34:17,107 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1115 transitions. Word has length 34 [2023-11-23 20:34:17,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:17,108 INFO L495 AbstractCegarLoop]: Abstraction has 800 states and 1115 transitions. [2023-11-23 20:34:17,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2023-11-23 20:34:17,108 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1115 transitions. [2023-11-23 20:34:17,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 20:34:17,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:17,110 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] [2023-11-23 20:34:17,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:34:17,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-23 20:34:17,330 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:17,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:17,331 INFO L85 PathProgramCache]: Analyzing trace with hash 558358942, now seen corresponding path program 1 times [2023-11-23 20:34:17,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:17,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870222351] [2023-11-23 20:34:17,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:17,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:17,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:34:17,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:17,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870222351] [2023-11-23 20:34:17,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870222351] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:34:17,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755739406] [2023-11-23 20:34:17,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:17,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:34:17,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:17,562 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:34:17,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 20:34:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:17,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:34:18,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 20:34:18,112 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:34:18,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755739406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:18,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 20:34:18,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-23 20:34:18,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775134527] [2023-11-23 20:34:18,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:18,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:34:18,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:18,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:34:18,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:34:18,115 INFO L87 Difference]: Start difference. First operand 800 states and 1115 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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) [2023-11-23 20:34:18,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:18,458 INFO L93 Difference]: Finished difference Result 802 states and 1116 transitions. [2023-11-23 20:34:18,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:34:18,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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 35 [2023-11-23 20:34:18,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:18,467 INFO L225 Difference]: With dead ends: 802 [2023-11-23 20:34:18,467 INFO L226 Difference]: Without dead ends: 799 [2023-11-23 20:34:18,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:34:18,469 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 500 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:18,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 452 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 20:34:18,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2023-11-23 20:34:18,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 799. [2023-11-23 20:34:18,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 508 states have (on average 1.3366141732283465) internal successors, (679), 518 states have internal predecessors, (679), 219 states have call successors, (219), 72 states have call predecessors, (219), 71 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2023-11-23 20:34:18,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1113 transitions. [2023-11-23 20:34:18,616 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1113 transitions. Word has length 35 [2023-11-23 20:34:18,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:18,618 INFO L495 AbstractCegarLoop]: Abstraction has 799 states and 1113 transitions. [2023-11-23 20:34:18,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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) [2023-11-23 20:34:18,619 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1113 transitions. [2023-11-23 20:34:18,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 20:34:18,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:18,620 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] [2023-11-23 20:34:18,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 20:34:18,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:34:18,837 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:18,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:18,838 INFO L85 PathProgramCache]: Analyzing trace with hash 128986541, now seen corresponding path program 1 times [2023-11-23 20:34:18,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:18,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480443523] [2023-11-23 20:34:18,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:18,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:19,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:34:19,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:19,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480443523] [2023-11-23 20:34:19,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480443523] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:34:19,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902760760] [2023-11-23 20:34:19,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:19,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:34:19,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:19,086 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:34:19,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 20:34:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:19,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:34:19,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:19,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 20:34:19,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:34:19,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902760760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:19,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 20:34:19,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-23 20:34:19,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761891900] [2023-11-23 20:34:19,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:19,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:34:19,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:19,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:34:19,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:34:19,637 INFO L87 Difference]: Start difference. First operand 799 states and 1113 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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) [2023-11-23 20:34:19,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:19,950 INFO L93 Difference]: Finished difference Result 801 states and 1114 transitions. [2023-11-23 20:34:19,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:34:19,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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 36 [2023-11-23 20:34:19,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:19,957 INFO L225 Difference]: With dead ends: 801 [2023-11-23 20:34:19,957 INFO L226 Difference]: Without dead ends: 798 [2023-11-23 20:34:19,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:34:19,959 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 497 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:19,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 450 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 20:34:19,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2023-11-23 20:34:20,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2023-11-23 20:34:20,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 508 states have (on average 1.3346456692913387) internal successors, (678), 517 states have internal predecessors, (678), 218 states have call successors, (218), 72 states have call predecessors, (218), 71 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2023-11-23 20:34:20,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1111 transitions. [2023-11-23 20:34:20,070 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1111 transitions. Word has length 36 [2023-11-23 20:34:20,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:20,071 INFO L495 AbstractCegarLoop]: Abstraction has 798 states and 1111 transitions. [2023-11-23 20:34:20,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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) [2023-11-23 20:34:20,071 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1111 transitions. [2023-11-23 20:34:20,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-23 20:34:20,072 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:20,072 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] [2023-11-23 20:34:20,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 20:34:20,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:34:20,294 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:20,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:20,295 INFO L85 PathProgramCache]: Analyzing trace with hash -296651135, now seen corresponding path program 1 times [2023-11-23 20:34:20,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:20,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589044937] [2023-11-23 20:34:20,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:20,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:20,476 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:34:20,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:20,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589044937] [2023-11-23 20:34:20,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589044937] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:34:20,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348476495] [2023-11-23 20:34:20,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:20,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:34:20,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:20,479 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:34:20,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 20:34:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:20,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:34:20,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:20,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 20:34:20,987 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:34:20,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348476495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:20,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 20:34:20,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-23 20:34:20,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740176476] [2023-11-23 20:34:20,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:20,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:34:20,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:20,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:34:20,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:34:20,991 INFO L87 Difference]: Start difference. First operand 798 states and 1111 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) [2023-11-23 20:34:21,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:21,433 INFO L93 Difference]: Finished difference Result 940 states and 1300 transitions. [2023-11-23 20:34:21,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:34:21,434 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 [2023-11-23 20:34:21,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:21,442 INFO L225 Difference]: With dead ends: 940 [2023-11-23 20:34:21,442 INFO L226 Difference]: Without dead ends: 919 [2023-11-23 20:34:21,444 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 [2023-11-23 20:34:21,444 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 459 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:21,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 699 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 20:34:21,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-11-23 20:34:21,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2023-11-23 20:34:21,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 575 states have (on average 1.3130434782608695) internal successors, (755), 584 states have internal predecessors, (755), 259 states have call successors, (259), 85 states have call predecessors, (259), 84 states have return successors, (258), 258 states have call predecessors, (258), 258 states have call successors, (258) [2023-11-23 20:34:21,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1272 transitions. [2023-11-23 20:34:21,580 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1272 transitions. Word has length 37 [2023-11-23 20:34:21,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:21,580 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1272 transitions. [2023-11-23 20:34:21,581 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) [2023-11-23 20:34:21,581 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1272 transitions. [2023-11-23 20:34:21,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 20:34:21,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:21,584 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:21,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 20:34:21,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-23 20:34:21,808 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:21,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:21,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1479208697, now seen corresponding path program 1 times [2023-11-23 20:34:21,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:21,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035675600] [2023-11-23 20:34:21,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:21,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:22,096 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:34:22,096 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:22,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035675600] [2023-11-23 20:34:22,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035675600] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:34:22,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250012640] [2023-11-23 20:34:22,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:22,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:34:22,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:22,099 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:34:22,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 20:34:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:22,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:34:22,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:22,577 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 20:34:22,577 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:34:22,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250012640] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:22,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 20:34:22,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-23 20:34:22,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825693636] [2023-11-23 20:34:22,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:22,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:34:22,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:22,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:34:22,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:34:22,585 INFO L87 Difference]: Start difference. First operand 919 states and 1272 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 20:34:23,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:23,022 INFO L93 Difference]: Finished difference Result 1838 states and 2546 transitions. [2023-11-23 20:34:23,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:34:23,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2023-11-23 20:34:23,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:23,032 INFO L225 Difference]: With dead ends: 1838 [2023-11-23 20:34:23,032 INFO L226 Difference]: Without dead ends: 929 [2023-11-23 20:34:23,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:34:23,039 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 8 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:23,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 856 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 20:34:23,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2023-11-23 20:34:23,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 921. [2023-11-23 20:34:23,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 577 states have (on average 1.3119584055459272) internal successors, (757), 586 states have internal predecessors, (757), 259 states have call successors, (259), 85 states have call predecessors, (259), 84 states have return successors, (258), 258 states have call predecessors, (258), 258 states have call successors, (258) [2023-11-23 20:34:23,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1274 transitions. [2023-11-23 20:34:23,175 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1274 transitions. Word has length 56 [2023-11-23 20:34:23,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:23,176 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1274 transitions. [2023-11-23 20:34:23,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 20:34:23,177 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1274 transitions. [2023-11-23 20:34:23,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-23 20:34:23,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:23,179 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:23,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 20:34:23,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:34:23,395 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:23,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:23,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1190271269, now seen corresponding path program 1 times [2023-11-23 20:34:23,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:23,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040210185] [2023-11-23 20:34:23,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:23,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:23,632 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 20:34:23,633 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:23,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040210185] [2023-11-23 20:34:23,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040210185] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:34:23,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744770920] [2023-11-23 20:34:23,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:23,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:34:23,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:23,635 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:34:23,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 20:34:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:24,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 987 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:34:24,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:24,138 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-23 20:34:24,139 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:34:24,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744770920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:24,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 20:34:24,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-23 20:34:24,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202327466] [2023-11-23 20:34:24,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:24,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:34:24,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:24,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:34:24,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:34:24,143 INFO L87 Difference]: Start difference. First operand 921 states and 1274 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 20:34:24,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:24,666 INFO L93 Difference]: Finished difference Result 921 states and 1274 transitions. [2023-11-23 20:34:24,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:34:24,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2023-11-23 20:34:24,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:24,669 INFO L225 Difference]: With dead ends: 921 [2023-11-23 20:34:24,669 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 20:34:24,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:34:24,674 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 237 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:24,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 972 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 20:34:24,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 20:34:24,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 20:34:24,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:34:24,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 20:34:24,677 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2023-11-23 20:34:24,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:24,677 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 20:34:24,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 20:34:24,678 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 20:34:24,678 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:34:24,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:34:24,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 20:34:24,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:34:24,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 20:34:27,164 INFO L899 garLoopResultBuilder]: For program point L2977(line 2977) no Hoare annotation was computed. [2023-11-23 20:34:27,164 INFO L899 garLoopResultBuilder]: For program point L2971-1(line 2971) no Hoare annotation was computed. [2023-11-23 20:34:27,165 INFO L902 garLoopResultBuilder]: At program point L2971(line 2971) the Hoare annotation is: true [2023-11-23 20:34:27,165 INFO L899 garLoopResultBuilder]: For program point L2967(lines 2967 2978) no Hoare annotation was computed. [2023-11-23 20:34:27,165 INFO L899 garLoopResultBuilder]: For program point L2967-2(lines 2963 2979) no Hoare annotation was computed. [2023-11-23 20:34:27,165 INFO L899 garLoopResultBuilder]: For program point L2963(lines 2963 2979) no Hoare annotation was computed. [2023-11-23 20:34:27,165 INFO L902 garLoopResultBuilder]: At program point L2961-1(line 2961) the Hoare annotation is: true [2023-11-23 20:34:27,165 INFO L902 garLoopResultBuilder]: At program point L2961(line 2961) the Hoare annotation is: true [2023-11-23 20:34:27,166 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2951 2982) the Hoare annotation is: true [2023-11-23 20:34:27,166 INFO L899 garLoopResultBuilder]: For program point copy_from_userEXIT(lines 2951 2982) no Hoare annotation was computed. [2023-11-23 20:34:27,166 INFO L902 garLoopResultBuilder]: At program point L2972-2(lines 2972 2976) the Hoare annotation is: true [2023-11-23 20:34:27,166 INFO L902 garLoopResultBuilder]: At program point L2968(line 2968) the Hoare annotation is: true [2023-11-23 20:34:27,166 INFO L902 garLoopResultBuilder]: At program point L2966(line 2966) the Hoare annotation is: true [2023-11-23 20:34:27,166 INFO L899 garLoopResultBuilder]: For program point L2968-1(line 2968) no Hoare annotation was computed. [2023-11-23 20:34:27,166 INFO L902 garLoopResultBuilder]: At program point L2964(line 2964) the Hoare annotation is: true [2023-11-23 20:34:27,167 INFO L899 garLoopResultBuilder]: For program point L2966-1(line 2966) no Hoare annotation was computed. [2023-11-23 20:34:27,167 INFO L899 garLoopResultBuilder]: For program point L2962(line 2962) no Hoare annotation was computed. [2023-11-23 20:34:27,167 INFO L899 garLoopResultBuilder]: For program point L2964-1(line 2964) no Hoare annotation was computed. [2023-11-23 20:34:27,167 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4566 4568) the Hoare annotation is: true [2023-11-23 20:34:27,167 INFO L899 garLoopResultBuilder]: For program point pi_releaseEXIT(lines 4566 4568) no Hoare annotation was computed. [2023-11-23 20:34:27,167 INFO L899 garLoopResultBuilder]: For program point pi_initEXIT(lines 4556 4558) no Hoare annotation was computed. [2023-11-23 20:34:27,168 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4556 4558) the Hoare annotation is: true [2023-11-23 20:34:27,168 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3063 3069) the Hoare annotation is: true [2023-11-23 20:34:27,168 INFO L899 garLoopResultBuilder]: For program point write_regEXIT(lines 3063 3069) no Hoare annotation was computed. [2023-11-23 20:34:27,168 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3076 3082) the Hoare annotation is: true [2023-11-23 20:34:27,168 INFO L899 garLoopResultBuilder]: For program point pg_sleepEXIT(lines 3076 3082) no Hoare annotation was computed. [2023-11-23 20:34:27,168 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4563 4565) the Hoare annotation is: true [2023-11-23 20:34:27,169 INFO L899 garLoopResultBuilder]: For program point pi_read_regrEXIT(lines 4563 4565) no Hoare annotation was computed. [2023-11-23 20:34:27,169 INFO L902 garLoopResultBuilder]: At program point might_faultFINAL(lines 4532 4534) the Hoare annotation is: true [2023-11-23 20:34:27,169 INFO L899 garLoopResultBuilder]: For program point might_faultEXIT(lines 4532 4534) no Hoare annotation was computed. [2023-11-23 20:34:27,169 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4576 4578) the Hoare annotation is: true [2023-11-23 20:34:27,169 INFO L899 garLoopResultBuilder]: For program point printkEXIT(lines 4576 4578) no Hoare annotation was computed. [2023-11-23 20:34:27,169 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4552 4554) the Hoare annotation is: true [2023-11-23 20:34:27,170 INFO L899 garLoopResultBuilder]: For program point pi_disconnectEXIT(lines 4552 4554) no Hoare annotation was computed. [2023-11-23 20:34:27,170 INFO L899 garLoopResultBuilder]: For program point L3425(lines 3425 3429) no Hoare annotation was computed. [2023-11-23 20:34:27,170 INFO L899 garLoopResultBuilder]: For program point pg_probeEXIT(lines 3407 3441) no Hoare annotation was computed. [2023-11-23 20:34:27,170 INFO L899 garLoopResultBuilder]: For program point L3419-1(line 3419) no Hoare annotation was computed. [2023-11-23 20:34:27,170 INFO L902 garLoopResultBuilder]: At program point L3419(line 3419) the Hoare annotation is: true [2023-11-23 20:34:27,170 INFO L899 garLoopResultBuilder]: For program point L3417(line 3417) no Hoare annotation was computed. [2023-11-23 20:34:27,170 INFO L899 garLoopResultBuilder]: For program point L3413-1(lines 3413 3438) no Hoare annotation was computed. [2023-11-23 20:34:27,171 INFO L899 garLoopResultBuilder]: For program point L3413(lines 3413 3438) no Hoare annotation was computed. [2023-11-23 20:34:27,171 INFO L902 garLoopResultBuilder]: At program point L3434(line 3434) the Hoare annotation is: true [2023-11-23 20:34:27,171 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3407 3441) the Hoare annotation is: true [2023-11-23 20:34:27,171 INFO L902 garLoopResultBuilder]: At program point L3432(line 3432) the Hoare annotation is: true [2023-11-23 20:34:27,171 INFO L902 garLoopResultBuilder]: At program point ldv_22850(lines 3413 3431) the Hoare annotation is: true [2023-11-23 20:34:27,171 INFO L899 garLoopResultBuilder]: For program point L3434-1(line 3434) no Hoare annotation was computed. [2023-11-23 20:34:27,172 INFO L899 garLoopResultBuilder]: For program point L3432-1(line 3432) no Hoare annotation was computed. [2023-11-23 20:34:27,172 INFO L899 garLoopResultBuilder]: For program point L3424(lines 3413 3431) no Hoare annotation was computed. [2023-11-23 20:34:27,172 INFO L899 garLoopResultBuilder]: For program point pg_probeFINAL(lines 3407 3441) no Hoare annotation was computed. [2023-11-23 20:34:27,172 INFO L899 garLoopResultBuilder]: For program point L3418(lines 3418 3422) no Hoare annotation was computed. [2023-11-23 20:34:27,172 INFO L899 garLoopResultBuilder]: For program point L3433(lines 3433 3437) no Hoare annotation was computed. [2023-11-23 20:34:27,172 INFO L902 garLoopResultBuilder]: At program point L3052(line 3052) the Hoare annotation is: true [2023-11-23 20:34:27,173 INFO L899 garLoopResultBuilder]: For program point L3052-1(line 3052) no Hoare annotation was computed. [2023-11-23 20:34:27,173 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3049 3055) the Hoare annotation is: true [2023-11-23 20:34:27,173 INFO L899 garLoopResultBuilder]: For program point status_regEXIT(lines 3049 3055) no Hoare annotation was computed. [2023-11-23 20:34:27,173 INFO L899 garLoopResultBuilder]: For program point L3202-1(line 3202) no Hoare annotation was computed. [2023-11-23 20:34:27,173 INFO L899 garLoopResultBuilder]: For program point L3231-1(line 3231) no Hoare annotation was computed. [2023-11-23 20:34:27,173 INFO L902 garLoopResultBuilder]: At program point L3231(line 3231) the Hoare annotation is: true [2023-11-23 20:34:27,173 INFO L902 garLoopResultBuilder]: At program point L3240(line 3240) the Hoare annotation is: true [2023-11-23 20:34:27,174 INFO L899 garLoopResultBuilder]: For program point L3207-1(line 3207) no Hoare annotation was computed. [2023-11-23 20:34:27,174 INFO L902 garLoopResultBuilder]: At program point L3207(line 3207) the Hoare annotation is: true [2023-11-23 20:34:27,174 INFO L899 garLoopResultBuilder]: For program point L3240-1(line 3240) no Hoare annotation was computed. [2023-11-23 20:34:27,174 INFO L902 garLoopResultBuilder]: At program point L3232(lines 3201 3242) the Hoare annotation is: true [2023-11-23 20:34:27,174 INFO L899 garLoopResultBuilder]: For program point L3220-1(lines 3220 3228) no Hoare annotation was computed. [2023-11-23 20:34:27,174 INFO L899 garLoopResultBuilder]: For program point L3216-1(lines 3201 3242) no Hoare annotation was computed. [2023-11-23 20:34:27,175 INFO L899 garLoopResultBuilder]: For program point L3212(lines 3212 3215) no Hoare annotation was computed. [2023-11-23 20:34:27,175 INFO L899 garLoopResultBuilder]: For program point L3212-2(lines 3201 3242) no Hoare annotation was computed. [2023-11-23 20:34:27,175 INFO L899 garLoopResultBuilder]: For program point L3233(line 3233) no Hoare annotation was computed. [2023-11-23 20:34:27,175 INFO L902 garLoopResultBuilder]: At program point L3221-2(lines 3221 3225) the Hoare annotation is: true [2023-11-23 20:34:27,175 INFO L899 garLoopResultBuilder]: For program point L3213-1(line 3213) no Hoare annotation was computed. [2023-11-23 20:34:27,175 INFO L902 garLoopResultBuilder]: At program point L3213(line 3213) the Hoare annotation is: true [2023-11-23 20:34:27,175 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3191 3243) the Hoare annotation is: true [2023-11-23 20:34:27,176 INFO L899 garLoopResultBuilder]: For program point L3234-4(lines 3234 3238) no Hoare annotation was computed. [2023-11-23 20:34:27,176 INFO L899 garLoopResultBuilder]: For program point L3226(line 3226) no Hoare annotation was computed. [2023-11-23 20:34:27,176 INFO L899 garLoopResultBuilder]: For program point pg_completionEXIT(lines 3191 3243) no Hoare annotation was computed. [2023-11-23 20:34:27,176 INFO L902 garLoopResultBuilder]: At program point ldv_22806(lines 3201 3242) the Hoare annotation is: true [2023-11-23 20:34:27,176 INFO L902 garLoopResultBuilder]: At program point L3210(line 3210) the Hoare annotation is: true [2023-11-23 20:34:27,176 INFO L899 garLoopResultBuilder]: For program point L3210-1(line 3210) no Hoare annotation was computed. [2023-11-23 20:34:27,177 INFO L899 garLoopResultBuilder]: For program point L3206(line 3206) no Hoare annotation was computed. [2023-11-23 20:34:27,177 INFO L902 garLoopResultBuilder]: At program point L3202(line 3202) the Hoare annotation is: true [2023-11-23 20:34:27,177 INFO L899 garLoopResultBuilder]: For program point ldv_unregister_chrdev_11EXIT(lines 4032 4039) no Hoare annotation was computed. [2023-11-23 20:34:27,177 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4032 4039) the Hoare annotation is: true [2023-11-23 20:34:27,177 INFO L899 garLoopResultBuilder]: For program point DRIVEEXIT(lines 3070 3075) no Hoare annotation was computed. [2023-11-23 20:34:27,177 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3070 3075) the Hoare annotation is: true [2023-11-23 20:34:27,178 INFO L899 garLoopResultBuilder]: For program point mutex_unlockEXIT(lines 4542 4544) no Hoare annotation was computed. [2023-11-23 20:34:27,178 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4542 4544) the Hoare annotation is: true [2023-11-23 20:34:27,178 INFO L899 garLoopResultBuilder]: For program point copy_to_userEXIT(lines 2983 2990) no Hoare annotation was computed. [2023-11-23 20:34:27,178 INFO L902 garLoopResultBuilder]: At program point L2986(line 2986) the Hoare annotation is: true [2023-11-23 20:34:27,178 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2983 2990) the Hoare annotation is: true [2023-11-23 20:34:27,178 INFO L899 garLoopResultBuilder]: For program point L2986-1(line 2986) no Hoare annotation was computed. [2023-11-23 20:34:27,179 INFO L899 garLoopResultBuilder]: For program point pg_waitFINAL(lines 3083 3137) no Hoare annotation was computed. [2023-11-23 20:34:27,179 INFO L899 garLoopResultBuilder]: For program point L3099(lines 3099 3103) no Hoare annotation was computed. [2023-11-23 20:34:27,179 INFO L902 garLoopResultBuilder]: At program point L3116(line 3116) the Hoare annotation is: true [2023-11-23 20:34:27,179 INFO L899 garLoopResultBuilder]: For program point L3116-1(line 3116) no Hoare annotation was computed. [2023-11-23 20:34:27,179 INFO L899 garLoopResultBuilder]: For program point L3117(lines 3117 3126) no Hoare annotation was computed. [2023-11-23 20:34:27,179 INFO L899 garLoopResultBuilder]: For program point L3117-2(lines 3113 3133) no Hoare annotation was computed. [2023-11-23 20:34:27,180 INFO L902 garLoopResultBuilder]: At program point L3118-2(lines 3118 3122) the Hoare annotation is: true [2023-11-23 20:34:27,180 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3083 3137) the Hoare annotation is: true [2023-11-23 20:34:27,180 INFO L902 garLoopResultBuilder]: At program point L3102(line 3102) the Hoare annotation is: true [2023-11-23 20:34:27,180 INFO L902 garLoopResultBuilder]: At program point L3102-1(lines 3092 3136) the Hoare annotation is: true [2023-11-23 20:34:27,180 INFO L899 garLoopResultBuilder]: For program point L3113-4(lines 3113 3134) no Hoare annotation was computed. [2023-11-23 20:34:27,180 INFO L899 garLoopResultBuilder]: For program point L3105(line 3105) no Hoare annotation was computed. [2023-11-23 20:34:27,181 INFO L902 garLoopResultBuilder]: At program point L3114(line 3114) the Hoare annotation is: true [2023-11-23 20:34:27,181 INFO L899 garLoopResultBuilder]: For program point L3114-1(line 3114) no Hoare annotation was computed. [2023-11-23 20:34:27,181 INFO L899 garLoopResultBuilder]: For program point pg_waitEXIT(lines 3083 3137) no Hoare annotation was computed. [2023-11-23 20:34:27,181 INFO L899 garLoopResultBuilder]: For program point L3106-15(lines 3106 3110) no Hoare annotation was computed. [2023-11-23 20:34:27,181 INFO L899 garLoopResultBuilder]: For program point L3123(lines 3123 3124) no Hoare annotation was computed. [2023-11-23 20:34:27,181 INFO L899 garLoopResultBuilder]: For program point L3115-1(line 3115) no Hoare annotation was computed. [2023-11-23 20:34:27,182 INFO L902 garLoopResultBuilder]: At program point L3115(line 3115) the Hoare annotation is: true [2023-11-23 20:34:27,182 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 4041 4046) the Hoare annotation is: true [2023-11-23 20:34:27,182 INFO L899 garLoopResultBuilder]: For program point ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4044) no Hoare annotation was computed. [2023-11-23 20:34:27,182 INFO L899 garLoopResultBuilder]: For program point ldv_errorEXIT(lines 4041 4046) no Hoare annotation was computed. [2023-11-23 20:34:27,182 INFO L902 garLoopResultBuilder]: At program point L3582(line 3582) the Hoare annotation is: true [2023-11-23 20:34:27,182 INFO L899 garLoopResultBuilder]: For program point L3582-1(line 3582) no Hoare annotation was computed. [2023-11-23 20:34:27,183 INFO L899 garLoopResultBuilder]: For program point L3578(lines 3578 3581) no Hoare annotation was computed. [2023-11-23 20:34:27,183 INFO L899 garLoopResultBuilder]: For program point L3574(lines 3574 3577) no Hoare annotation was computed. [2023-11-23 20:34:27,183 INFO L899 garLoopResultBuilder]: For program point pg_writeEXIT(lines 3563 3636) no Hoare annotation was computed. [2023-11-23 20:34:27,183 INFO L899 garLoopResultBuilder]: For program point L3599(lines 3599 3611) no Hoare annotation was computed. [2023-11-23 20:34:27,183 INFO L902 garLoopResultBuilder]: At program point L3628(lines 3628 3629) the Hoare annotation is: true [2023-11-23 20:34:27,183 INFO L899 garLoopResultBuilder]: For program point L3595(lines 3595 3598) no Hoare annotation was computed. [2023-11-23 20:34:27,183 INFO L899 garLoopResultBuilder]: For program point L3628-1(lines 3628 3629) no Hoare annotation was computed. [2023-11-23 20:34:27,184 INFO L899 garLoopResultBuilder]: For program point L3591(lines 3591 3594) no Hoare annotation was computed. [2023-11-23 20:34:27,184 INFO L899 garLoopResultBuilder]: For program point L3587(lines 3587 3590) no Hoare annotation was computed. [2023-11-23 20:34:27,184 INFO L899 garLoopResultBuilder]: For program point pg_writeFINAL(lines 3563 3636) no Hoare annotation was computed. [2023-11-23 20:34:27,184 INFO L899 garLoopResultBuilder]: For program point L3583(lines 3583 3586) no Hoare annotation was computed. [2023-11-23 20:34:27,184 INFO L899 garLoopResultBuilder]: For program point L3612(lines 3612 3615) no Hoare annotation was computed. [2023-11-23 20:34:27,184 INFO L902 garLoopResultBuilder]: At program point L3604(line 3604) the Hoare annotation is: true [2023-11-23 20:34:27,185 INFO L899 garLoopResultBuilder]: For program point L3604-1(line 3604) no Hoare annotation was computed. [2023-11-23 20:34:27,185 INFO L899 garLoopResultBuilder]: For program point L3600(lines 3600 3603) no Hoare annotation was computed. [2023-11-23 20:34:27,185 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3563 3636) the Hoare annotation is: true [2023-11-23 20:34:27,185 INFO L902 garLoopResultBuilder]: At program point L3618(line 3618) the Hoare annotation is: true [2023-11-23 20:34:27,185 INFO L899 garLoopResultBuilder]: For program point L3618-1(line 3618) no Hoare annotation was computed. [2023-11-23 20:34:27,185 INFO L899 garLoopResultBuilder]: For program point L3619(lines 3619 3626) no Hoare annotation was computed. [2023-11-23 20:34:27,186 INFO L899 garLoopResultBuilder]: For program point pi_connectEXIT(lines 4549 4551) no Hoare annotation was computed. [2023-11-23 20:34:27,186 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4549 4551) the Hoare annotation is: true [2023-11-23 20:34:27,186 INFO L899 garLoopResultBuilder]: For program point L3169-1(line 3169) no Hoare annotation was computed. [2023-11-23 20:34:27,186 INFO L902 garLoopResultBuilder]: At program point L3169(line 3169) the Hoare annotation is: true [2023-11-23 20:34:27,186 INFO L899 garLoopResultBuilder]: For program point L3161-1(line 3161) no Hoare annotation was computed. [2023-11-23 20:34:27,186 INFO L902 garLoopResultBuilder]: At program point L3161(line 3161) the Hoare annotation is: true [2023-11-23 20:34:27,187 INFO L899 garLoopResultBuilder]: For program point pg_commandEXIT(lines 3138 3190) no Hoare annotation was computed. [2023-11-23 20:34:27,187 INFO L899 garLoopResultBuilder]: For program point L3157(lines 3157 3160) no Hoare annotation was computed. [2023-11-23 20:34:27,187 INFO L902 garLoopResultBuilder]: At program point L3153-1(line 3153) the Hoare annotation is: true [2023-11-23 20:34:27,187 INFO L902 garLoopResultBuilder]: At program point L3153(line 3153) the Hoare annotation is: true [2023-11-23 20:34:27,187 INFO L899 garLoopResultBuilder]: For program point fail(lines 3144 3189) no Hoare annotation was computed. [2023-11-23 20:34:27,187 INFO L899 garLoopResultBuilder]: For program point L3182(line 3182) no Hoare annotation was computed. [2023-11-23 20:34:27,188 INFO L899 garLoopResultBuilder]: For program point L3149(lines 3149 3152) no Hoare annotation was computed. [2023-11-23 20:34:27,188 INFO L899 garLoopResultBuilder]: For program point L3145-1(line 3145) no Hoare annotation was computed. [2023-11-23 20:34:27,188 INFO L902 garLoopResultBuilder]: At program point L3145(line 3145) the Hoare annotation is: true [2023-11-23 20:34:27,188 INFO L902 garLoopResultBuilder]: At program point ldv_22796(lines 3168 3183) the Hoare annotation is: true [2023-11-23 20:34:27,188 INFO L899 garLoopResultBuilder]: For program point L3162(lines 3162 3166) no Hoare annotation was computed. [2023-11-23 20:34:27,188 INFO L902 garLoopResultBuilder]: At program point L3154(line 3154) the Hoare annotation is: true [2023-11-23 20:34:27,189 INFO L899 garLoopResultBuilder]: For program point L3187-1(line 3187) no Hoare annotation was computed. [2023-11-23 20:34:27,189 INFO L902 garLoopResultBuilder]: At program point L3187(line 3187) the Hoare annotation is: true [2023-11-23 20:34:27,189 INFO L902 garLoopResultBuilder]: At program point L3146(line 3146) the Hoare annotation is: true [2023-11-23 20:34:27,189 INFO L899 garLoopResultBuilder]: For program point L3146-1(line 3146) no Hoare annotation was computed. [2023-11-23 20:34:27,189 INFO L899 garLoopResultBuilder]: For program point L3167-1(line 3167) no Hoare annotation was computed. [2023-11-23 20:34:27,189 INFO L902 garLoopResultBuilder]: At program point L3167(line 3167) the Hoare annotation is: true [2023-11-23 20:34:27,189 INFO L899 garLoopResultBuilder]: For program point L3163-1(line 3163) no Hoare annotation was computed. [2023-11-23 20:34:27,190 INFO L902 garLoopResultBuilder]: At program point L3163(line 3163) the Hoare annotation is: true [2023-11-23 20:34:27,190 INFO L902 garLoopResultBuilder]: At program point L3155(line 3155) the Hoare annotation is: true [2023-11-23 20:34:27,190 INFO L902 garLoopResultBuilder]: At program point L3147-1(line 3147) the Hoare annotation is: true [2023-11-23 20:34:27,190 INFO L902 garLoopResultBuilder]: At program point L3147(line 3147) the Hoare annotation is: true [2023-11-23 20:34:27,190 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3138 3190) the Hoare annotation is: true [2023-11-23 20:34:27,190 INFO L899 garLoopResultBuilder]: For program point $Ultimate##10(lines 3176 3180) no Hoare annotation was computed. [2023-11-23 20:34:27,191 INFO L899 garLoopResultBuilder]: For program point L3168(lines 3168 3184) no Hoare annotation was computed. [2023-11-23 20:34:27,191 INFO L899 garLoopResultBuilder]: For program point L3168-2(lines 3168 3184) no Hoare annotation was computed. [2023-11-23 20:34:27,191 INFO L899 garLoopResultBuilder]: For program point pg_commandFINAL(lines 3138 3190) no Hoare annotation was computed. [2023-11-23 20:34:27,191 INFO L899 garLoopResultBuilder]: For program point L3156(line 3156) no Hoare annotation was computed. [2023-11-23 20:34:27,191 INFO L899 garLoopResultBuilder]: For program point L3148(line 3148) no Hoare annotation was computed. [2023-11-23 20:34:27,191 INFO L899 garLoopResultBuilder]: For program point L3173-1(line 3173) no Hoare annotation was computed. [2023-11-23 20:34:27,192 INFO L902 garLoopResultBuilder]: At program point L3173(line 3173) the Hoare annotation is: true [2023-11-23 20:34:27,192 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4048 4053) the Hoare annotation is: true [2023-11-23 20:34:27,192 INFO L899 garLoopResultBuilder]: For program point ldv__builtin_expectEXIT(lines 4048 4053) no Hoare annotation was computed. [2023-11-23 20:34:27,192 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2805 2811) the Hoare annotation is: true [2023-11-23 20:34:27,192 INFO L899 garLoopResultBuilder]: For program point clear_bitEXIT(lines 2805 2811) no Hoare annotation was computed. [2023-11-23 20:34:27,192 INFO L899 garLoopResultBuilder]: For program point read_regEXIT(lines 3056 3062) no Hoare annotation was computed. [2023-11-23 20:34:27,193 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3056 3062) the Hoare annotation is: true [2023-11-23 20:34:27,193 INFO L899 garLoopResultBuilder]: For program point L3059-1(line 3059) no Hoare annotation was computed. [2023-11-23 20:34:27,193 INFO L902 garLoopResultBuilder]: At program point L3059(line 3059) the Hoare annotation is: true [2023-11-23 20:34:27,193 INFO L899 garLoopResultBuilder]: For program point L3264(line 3264) no Hoare annotation was computed. [2023-11-23 20:34:27,193 INFO L902 garLoopResultBuilder]: At program point L3260(line 3260) the Hoare annotation is: true [2023-11-23 20:34:27,193 INFO L902 garLoopResultBuilder]: At program point L3322(line 3322) the Hoare annotation is: true [2023-11-23 20:34:27,193 INFO L899 garLoopResultBuilder]: For program point L3260-1(line 3260) no Hoare annotation was computed. [2023-11-23 20:34:27,194 INFO L899 garLoopResultBuilder]: For program point L3322-1(line 3322) no Hoare annotation was computed. [2023-11-23 20:34:27,194 INFO L902 garLoopResultBuilder]: At program point L3306(line 3306) the Hoare annotation is: true [2023-11-23 20:34:27,194 INFO L899 garLoopResultBuilder]: For program point L3273-1(line 3273) no Hoare annotation was computed. [2023-11-23 20:34:27,194 INFO L902 garLoopResultBuilder]: At program point L3273(line 3273) the Hoare annotation is: true [2023-11-23 20:34:27,194 INFO L899 garLoopResultBuilder]: For program point L3306-1(line 3306) no Hoare annotation was computed. [2023-11-23 20:34:27,194 INFO L902 garLoopResultBuilder]: At program point L3302(line 3302) the Hoare annotation is: true [2023-11-23 20:34:27,195 INFO L899 garLoopResultBuilder]: For program point L3302-1(line 3302) no Hoare annotation was computed. [2023-11-23 20:34:27,195 INFO L899 garLoopResultBuilder]: For program point L3261-1(line 3261) no Hoare annotation was computed. [2023-11-23 20:34:27,195 INFO L902 garLoopResultBuilder]: At program point L3261(line 3261) the Hoare annotation is: true [2023-11-23 20:34:27,195 INFO L899 garLoopResultBuilder]: For program point L3286(line 3286) no Hoare annotation was computed. [2023-11-23 20:34:27,195 INFO L899 garLoopResultBuilder]: For program point L3319(line 3319) no Hoare annotation was computed. [2023-11-23 20:34:27,195 INFO L902 garLoopResultBuilder]: At program point L3315-1(lines 3315 3318) the Hoare annotation is: true [2023-11-23 20:34:27,196 INFO L899 garLoopResultBuilder]: For program point $Ultimate##21(lines 3315 3318) no Hoare annotation was computed. [2023-11-23 20:34:27,196 INFO L899 garLoopResultBuilder]: For program point L3274-4(lines 3274 3278) no Hoare annotation was computed. [2023-11-23 20:34:27,196 INFO L902 garLoopResultBuilder]: At program point ldv_22820(lines 3254 3324) the Hoare annotation is: true [2023-11-23 20:34:27,196 INFO L902 garLoopResultBuilder]: At program point L3262(line 3262) the Hoare annotation is: true [2023-11-23 20:34:27,196 INFO L902 garLoopResultBuilder]: At program point L3262-1(line 3262) the Hoare annotation is: true [2023-11-23 20:34:27,196 INFO L902 garLoopResultBuilder]: At program point L3316(line 3316) the Hoare annotation is: true [2023-11-23 20:34:27,196 INFO L899 garLoopResultBuilder]: For program point L3316-1(line 3316) no Hoare annotation was computed. [2023-11-23 20:34:27,197 INFO L902 garLoopResultBuilder]: At program point ldv_22817(lines 3254 3324) the Hoare annotation is: true [2023-11-23 20:34:27,197 INFO L899 garLoopResultBuilder]: For program point ldv_22819(lines 3254 3324) no Hoare annotation was computed. [2023-11-23 20:34:27,197 INFO L899 garLoopResultBuilder]: For program point $Ultimate##19(lines 3309 3313) no Hoare annotation was computed. [2023-11-23 20:34:27,197 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3244 3325) the Hoare annotation is: true [2023-11-23 20:34:27,197 INFO L899 garLoopResultBuilder]: For program point $Ultimate##12(lines 3289 3293) no Hoare annotation was computed. [2023-11-23 20:34:27,197 INFO L899 garLoopResultBuilder]: For program point pg_resetEXIT(lines 3244 3325) no Hoare annotation was computed. [2023-11-23 20:34:27,198 INFO L899 garLoopResultBuilder]: For program point L3296-2(lines 3254 3324) no Hoare annotation was computed. [2023-11-23 20:34:27,198 INFO L902 garLoopResultBuilder]: At program point L3263(line 3263) the Hoare annotation is: true [2023-11-23 20:34:27,198 INFO L899 garLoopResultBuilder]: For program point L3272(lines 3272 3281) no Hoare annotation was computed. [2023-11-23 20:34:27,198 INFO L899 garLoopResultBuilder]: For program point L3268(lines 3254 3324) no Hoare annotation was computed. [2023-11-23 20:34:27,198 INFO L899 garLoopResultBuilder]: For program point L3301-1(lines 3301 3321) no Hoare annotation was computed. [2023-11-23 20:34:27,198 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 2921 2930) no Hoare annotation was computed. [2023-11-23 20:34:27,199 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2921 2930) the Hoare annotation is: true [2023-11-23 20:34:27,199 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4535 4537) the Hoare annotation is: true [2023-11-23 20:34:27,199 INFO L899 garLoopResultBuilder]: For program point mutex_lockEXIT(lines 4535 4537) no Hoare annotation was computed. [2023-11-23 20:34:27,199 INFO L899 garLoopResultBuilder]: For program point _copy_from_userEXIT(lines 4516 4518) no Hoare annotation was computed. [2023-11-23 20:34:27,199 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4516 4518) the Hoare annotation is: true [2023-11-23 20:34:27,200 INFO L895 garLoopResultBuilder]: At program point L3504(line 3504) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= |ULTIMATE.start_pg_detect_~k~3#1| 0)) [2023-11-23 20:34:27,200 INFO L899 garLoopResultBuilder]: For program point L3537(line 3537) no Hoare annotation was computed. [2023-11-23 20:34:27,200 INFO L899 garLoopResultBuilder]: For program point L4462(lines 4462 4465) no Hoare annotation was computed. [2023-11-23 20:34:27,200 INFO L899 garLoopResultBuilder]: For program point L3471(lines 3471 3474) no Hoare annotation was computed. [2023-11-23 20:34:27,200 INFO L899 garLoopResultBuilder]: For program point L3504-1(line 3504) no Hoare annotation was computed. [2023-11-23 20:34:27,201 INFO L899 garLoopResultBuilder]: For program point L3901(line 3901) no Hoare annotation was computed. [2023-11-23 20:34:27,201 INFO L899 garLoopResultBuilder]: For program point L3902(lines 3902 3933) no Hoare annotation was computed. [2023-11-23 20:34:27,201 INFO L899 garLoopResultBuilder]: For program point L3869(line 3869) no Hoare annotation was computed. [2023-11-23 20:34:27,201 INFO L899 garLoopResultBuilder]: For program point pg_read_returnLabel#1(lines 3637 3696) no Hoare annotation was computed. [2023-11-23 20:34:27,201 INFO L899 garLoopResultBuilder]: For program point L3803(lines 3803 3806) no Hoare annotation was computed. [2023-11-23 20:34:27,201 INFO L899 garLoopResultBuilder]: For program point L3803-2(lines 3803 3806) no Hoare annotation was computed. [2023-11-23 20:34:27,202 INFO L899 garLoopResultBuilder]: For program point L4464-1(lines 4462 4465) no Hoare annotation was computed. [2023-11-23 20:34:27,202 INFO L895 garLoopResultBuilder]: At program point L4497(line 4497) the Hoare annotation is: false [2023-11-23 20:34:27,202 INFO L895 garLoopResultBuilder]: At program point L4464(line 4464) the Hoare annotation is: false [2023-11-23 20:34:27,202 INFO L899 garLoopResultBuilder]: For program point L4497-1(lines 4480 4501) no Hoare annotation was computed. [2023-11-23 20:34:27,202 INFO L899 garLoopResultBuilder]: For program point L3870(lines 3870 3874) no Hoare annotation was computed. [2023-11-23 20:34:27,203 INFO L895 garLoopResultBuilder]: At program point L3804(line 3804) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_state_variable_1~0 0) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,203 INFO L899 garLoopResultBuilder]: For program point L3804-1(line 3804) no Hoare annotation was computed. [2023-11-23 20:34:27,203 INFO L899 garLoopResultBuilder]: For program point L3771(lines 3707 3774) no Hoare annotation was computed. [2023-11-23 20:34:27,203 INFO L899 garLoopResultBuilder]: For program point L3540(lines 3540 3546) no Hoare annotation was computed. [2023-11-23 20:34:27,203 INFO L895 garLoopResultBuilder]: At program point L3541-1(line 3541) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= ~ldv_mutex_pg_mutex~0 2)) [2023-11-23 20:34:27,204 INFO L895 garLoopResultBuilder]: At program point L3541(line 3541) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= ~ldv_mutex_pg_mutex~0 2)) [2023-11-23 20:34:27,204 INFO L899 garLoopResultBuilder]: For program point L3475-1(lines 3475 3476) no Hoare annotation was computed. [2023-11-23 20:34:27,204 INFO L895 garLoopResultBuilder]: At program point L3475(lines 3475 3476) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,204 INFO L899 garLoopResultBuilder]: For program point L3905(line 3905) no Hoare annotation was computed. [2023-11-23 20:34:27,204 INFO L899 garLoopResultBuilder]: For program point L3542(line 3542) no Hoare annotation was computed. [2023-11-23 20:34:27,204 INFO L899 garLoopResultBuilder]: For program point L3906(lines 3906 3911) no Hoare annotation was computed. [2023-11-23 20:34:27,205 INFO L899 garLoopResultBuilder]: For program point L3708(lines 3708 3712) no Hoare annotation was computed. [2023-11-23 20:34:27,205 INFO L899 garLoopResultBuilder]: For program point L3477(lines 3477 3486) no Hoare annotation was computed. [2023-11-23 20:34:27,205 INFO L895 garLoopResultBuilder]: At program point L3478(line 3478) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,205 INFO L899 garLoopResultBuilder]: For program point L3478-1(line 3478) no Hoare annotation was computed. [2023-11-23 20:34:27,205 INFO L899 garLoopResultBuilder]: For program point L3842(lines 3837 3943) no Hoare annotation was computed. [2023-11-23 20:34:27,206 INFO L895 garLoopResultBuilder]: At program point L4503(line 4503) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,206 INFO L899 garLoopResultBuilder]: For program point L4503-1(line 4503) no Hoare annotation was computed. [2023-11-23 20:34:27,206 INFO L899 garLoopResultBuilder]: For program point L3479(lines 3479 3484) no Hoare annotation was computed. [2023-11-23 20:34:27,206 INFO L899 garLoopResultBuilder]: For program point L4404(lines 4404 4407) no Hoare annotation was computed. [2023-11-23 20:34:27,206 INFO L899 garLoopResultBuilder]: For program point L3876(line 3876) no Hoare annotation was computed. [2023-11-23 20:34:27,206 INFO L899 garLoopResultBuilder]: For program point L4009-1(lines 4005 4012) no Hoare annotation was computed. [2023-11-23 20:34:27,207 INFO L895 garLoopResultBuilder]: At program point L4009(line 4009) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= ~ldv_mutex_pg_mutex~0 2)) [2023-11-23 20:34:27,207 INFO L895 garLoopResultBuilder]: At program point L4406(line 4406) the Hoare annotation is: false [2023-11-23 20:34:27,207 INFO L899 garLoopResultBuilder]: For program point L4406-1(lines 4404 4407) no Hoare annotation was computed. [2023-11-23 20:34:27,207 INFO L899 garLoopResultBuilder]: For program point L3845(line 3845) no Hoare annotation was computed. [2023-11-23 20:34:27,207 INFO L899 garLoopResultBuilder]: For program point L3746(lines 3746 3751) no Hoare annotation was computed. [2023-11-23 20:34:27,208 INFO L895 garLoopResultBuilder]: At program point L3680(line 3680) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,208 INFO L899 garLoopResultBuilder]: For program point L3680-1(line 3680) no Hoare annotation was computed. [2023-11-23 20:34:27,208 INFO L899 garLoopResultBuilder]: For program point L3548(lines 3515 3551) no Hoare annotation was computed. [2023-11-23 20:34:27,208 INFO L899 garLoopResultBuilder]: For program point main_ldv_final#1(lines 3837 3943) no Hoare annotation was computed. [2023-11-23 20:34:27,208 INFO L899 garLoopResultBuilder]: For program point L3846(lines 3846 3899) no Hoare annotation was computed. [2023-11-23 20:34:27,208 INFO L899 garLoopResultBuilder]: For program point L3648(lines 3648 3651) no Hoare annotation was computed. [2023-11-23 20:34:27,209 INFO L899 garLoopResultBuilder]: For program point L3681(lines 3681 3684) no Hoare annotation was computed. [2023-11-23 20:34:27,209 INFO L899 garLoopResultBuilder]: For program point L3483-1(line 3483) no Hoare annotation was computed. [2023-11-23 20:34:27,209 INFO L895 garLoopResultBuilder]: At program point L3483(line 3483) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,209 INFO L899 garLoopResultBuilder]: For program point L3913(line 3913) no Hoare annotation was computed. [2023-11-23 20:34:27,209 INFO L899 garLoopResultBuilder]: For program point L3715(lines 3715 3719) no Hoare annotation was computed. [2023-11-23 20:34:27,209 INFO L899 garLoopResultBuilder]: For program point L3914(lines 3914 3926) no Hoare annotation was computed. [2023-11-23 20:34:27,210 INFO L899 garLoopResultBuilder]: For program point L3849(line 3849) no Hoare annotation was computed. [2023-11-23 20:34:27,210 INFO L899 garLoopResultBuilder]: For program point L3453-1(line 3453) no Hoare annotation was computed. [2023-11-23 20:34:27,210 INFO L895 garLoopResultBuilder]: At program point L3453(line 3453) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,210 INFO L899 garLoopResultBuilder]: For program point L3850(lines 3850 3854) no Hoare annotation was computed. [2023-11-23 20:34:27,210 INFO L899 garLoopResultBuilder]: For program point L3916-2(lines 3914 3925) no Hoare annotation was computed. [2023-11-23 20:34:27,210 INFO L899 garLoopResultBuilder]: For program point L3883(line 3883) no Hoare annotation was computed. [2023-11-23 20:34:27,211 INFO L899 garLoopResultBuilder]: For program point L3850-2(lines 3848 3896) no Hoare annotation was computed. [2023-11-23 20:34:27,211 INFO L899 garLoopResultBuilder]: For program point L3652(lines 3652 3655) no Hoare annotation was computed. [2023-11-23 20:34:27,211 INFO L899 garLoopResultBuilder]: For program point L3685(lines 3685 3693) no Hoare annotation was computed. [2023-11-23 20:34:27,211 INFO L899 garLoopResultBuilder]: For program point L3685-2(lines 3685 3693) no Hoare annotation was computed. [2023-11-23 20:34:27,211 INFO L899 garLoopResultBuilder]: For program point L3487(lines 3466 3497) no Hoare annotation was computed. [2023-11-23 20:34:27,211 INFO L899 garLoopResultBuilder]: For program point L3884(lines 3884 3892) no Hoare annotation was computed. [2023-11-23 20:34:27,212 INFO L899 garLoopResultBuilder]: For program point L3851-1(line 3851) no Hoare annotation was computed. [2023-11-23 20:34:27,212 INFO L895 garLoopResultBuilder]: At program point L3851(line 3851) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,212 INFO L895 garLoopResultBuilder]: At program point L3686(lines 3686 3687) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,212 INFO L899 garLoopResultBuilder]: For program point L3686-1(lines 3686 3687) no Hoare annotation was computed. [2023-11-23 20:34:27,212 INFO L899 garLoopResultBuilder]: For program point L3521-2(lines 3521 3525) no Hoare annotation was computed. [2023-11-23 20:34:27,212 INFO L899 garLoopResultBuilder]: For program point L3455(lines 3455 3499) no Hoare annotation was computed. [2023-11-23 20:34:27,213 INFO L899 garLoopResultBuilder]: For program point L4017-1(lines 4013 4020) no Hoare annotation was computed. [2023-11-23 20:34:27,213 INFO L895 garLoopResultBuilder]: At program point L4017(line 4017) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,213 INFO L895 garLoopResultBuilder]: At program point L3456(lines 3456 3457) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= |ULTIMATE.start_pg_detect_~k~3#1| 0)) [2023-11-23 20:34:27,213 INFO L899 garLoopResultBuilder]: For program point L3456-1(lines 3456 3457) no Hoare annotation was computed. [2023-11-23 20:34:27,213 INFO L899 garLoopResultBuilder]: For program point L3688(lines 3688 3691) no Hoare annotation was computed. [2023-11-23 20:34:27,214 INFO L899 garLoopResultBuilder]: For program point L3721(lines 3721 3741) no Hoare annotation was computed. [2023-11-23 20:34:27,214 INFO L895 garLoopResultBuilder]: At program point L3028(line 3028) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,214 INFO L899 garLoopResultBuilder]: For program point L3028-1(line 3028) no Hoare annotation was computed. [2023-11-23 20:34:27,214 INFO L895 garLoopResultBuilder]: At program point L3722(line 3722) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,214 INFO L899 garLoopResultBuilder]: For program point L3722-1(line 3722) no Hoare annotation was computed. [2023-11-23 20:34:27,215 INFO L899 garLoopResultBuilder]: For program point L3458(lines 3458 3497) no Hoare annotation was computed. [2023-11-23 20:34:27,215 INFO L899 garLoopResultBuilder]: For program point L3756(lines 3756 3759) no Hoare annotation was computed. [2023-11-23 20:34:27,215 INFO L899 garLoopResultBuilder]: For program point L3756-2(lines 3756 3759) no Hoare annotation was computed. [2023-11-23 20:34:27,215 INFO L899 garLoopResultBuilder]: For program point L3657-1(line 3657) no Hoare annotation was computed. [2023-11-23 20:34:27,215 INFO L895 garLoopResultBuilder]: At program point L3657(line 3657) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,215 INFO L899 garLoopResultBuilder]: For program point L4483(lines 4483 4486) no Hoare annotation was computed. [2023-11-23 20:34:27,215 INFO L899 garLoopResultBuilder]: For program point L3459-1(line 3459) no Hoare annotation was computed. [2023-11-23 20:34:27,216 INFO L895 garLoopResultBuilder]: At program point L3459(line 3459) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= |ULTIMATE.start_pg_detect_~k~3#1| 0)) [2023-11-23 20:34:27,216 INFO L895 garLoopResultBuilder]: At program point L3856(line 3856) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,216 INFO L899 garLoopResultBuilder]: For program point L3856-1(line 3856) no Hoare annotation was computed. [2023-11-23 20:34:27,216 INFO L899 garLoopResultBuilder]: For program point L3658(lines 3658 3664) no Hoare annotation was computed. [2023-11-23 20:34:27,216 INFO L899 garLoopResultBuilder]: For program point L3658-2(lines 3658 3664) no Hoare annotation was computed. [2023-11-23 20:34:27,217 INFO L899 garLoopResultBuilder]: For program point L3559-1(line 3559) no Hoare annotation was computed. [2023-11-23 20:34:27,217 INFO L895 garLoopResultBuilder]: At program point L3559(line 3559) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,217 INFO L899 garLoopResultBuilder]: For program point L3460(lines 3460 3465) no Hoare annotation was computed. [2023-11-23 20:34:27,217 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 20:34:27,217 INFO L899 garLoopResultBuilder]: For program point L3659-4(lines 3659 3662) no Hoare annotation was computed. [2023-11-23 20:34:27,217 INFO L899 garLoopResultBuilder]: For program point L3527(lines 3527 3531) no Hoare annotation was computed. [2023-11-23 20:34:27,218 INFO L895 garLoopResultBuilder]: At program point L4485(line 4485) the Hoare annotation is: false [2023-11-23 20:34:27,218 INFO L899 garLoopResultBuilder]: For program point L4485-1(lines 4482 4500) no Hoare annotation was computed. [2023-11-23 20:34:27,218 INFO L899 garLoopResultBuilder]: For program point L2933-1(line 2933) no Hoare annotation was computed. [2023-11-23 20:34:27,218 INFO L895 garLoopResultBuilder]: At program point L2933(line 2933) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= ~ldv_mutex_pg_mutex~0 2)) [2023-11-23 20:34:27,218 INFO L895 garLoopResultBuilder]: At program point L3033-1(line 3033) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,219 INFO L899 garLoopResultBuilder]: For program point L2835-1(line 2835) no Hoare annotation was computed. [2023-11-23 20:34:27,219 INFO L895 garLoopResultBuilder]: At program point L2835(line 2835) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,219 INFO L899 garLoopResultBuilder]: For program point L3727(lines 3727 3730) no Hoare annotation was computed. [2023-11-23 20:34:27,219 INFO L899 garLoopResultBuilder]: For program point L3727-2(lines 3727 3730) no Hoare annotation was computed. [2023-11-23 20:34:27,219 INFO L895 garLoopResultBuilder]: At program point pg_init_out_chrdev#1(lines 3707 3774) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,219 INFO L895 garLoopResultBuilder]: At program point L3728(line 3728) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,220 INFO L899 garLoopResultBuilder]: For program point L3728-1(line 3728) no Hoare annotation was computed. [2023-11-23 20:34:27,220 INFO L895 garLoopResultBuilder]: At program point L3464(line 3464) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= |ULTIMATE.start_pg_detect_~k~3#1| 0)) [2023-11-23 20:34:27,220 INFO L899 garLoopResultBuilder]: For program point $Ultimate##142(lines 3491 3495) no Hoare annotation was computed. [2023-11-23 20:34:27,220 INFO L899 garLoopResultBuilder]: For program point L3464-1(line 3464) no Hoare annotation was computed. [2023-11-23 20:34:27,220 INFO L899 garLoopResultBuilder]: For program point $Ultimate##145(lines 3500 3503) no Hoare annotation was computed. [2023-11-23 20:34:27,220 INFO L899 garLoopResultBuilder]: For program point L3861(line 3861) no Hoare annotation was computed. [2023-11-23 20:34:27,221 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 20:34:27,221 INFO L899 garLoopResultBuilder]: For program point $Ultimate##154(lines 3733 3737) no Hoare annotation was computed. [2023-11-23 20:34:27,221 INFO L895 garLoopResultBuilder]: At program point L4489(line 4489) the Hoare annotation is: false [2023-11-23 20:34:27,221 INFO L899 garLoopResultBuilder]: For program point L4489-1(lines 4482 4500) no Hoare annotation was computed. [2023-11-23 20:34:27,221 INFO L899 garLoopResultBuilder]: For program point L3862(lines 3862 3867) no Hoare annotation was computed. [2023-11-23 20:34:27,221 INFO L899 garLoopResultBuilder]: For program point L3532(lines 3532 3536) no Hoare annotation was computed. [2023-11-23 20:34:27,222 INFO L895 garLoopResultBuilder]: At program point L3532-2(lines 3532 3536) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= ~ldv_mutex_pg_mutex~0 2)) [2023-11-23 20:34:27,222 INFO L899 garLoopResultBuilder]: For program point $Ultimate##167(lines 3762 3766) no Hoare annotation was computed. [2023-11-23 20:34:27,222 INFO L899 garLoopResultBuilder]: For program point L3533-1(line 3533) no Hoare annotation was computed. [2023-11-23 20:34:27,222 INFO L895 garLoopResultBuilder]: At program point L3533(line 3533) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= ~ldv_mutex_pg_mutex~0 2)) [2023-11-23 20:34:27,222 INFO L899 garLoopResultBuilder]: For program point pg_detect_returnLabel#1(lines 3442 3507) no Hoare annotation was computed. [2023-11-23 20:34:27,223 INFO L895 garLoopResultBuilder]: At program point L-1-2(line -1) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,223 INFO L895 garLoopResultBuilder]: At program point L3798(line 3798) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,223 INFO L899 garLoopResultBuilder]: For program point L3798-1(line 3798) no Hoare annotation was computed. [2023-11-23 20:34:27,223 INFO L899 garLoopResultBuilder]: For program point $Ultimate##106(lines 3791 3795) no Hoare annotation was computed. [2023-11-23 20:34:27,223 INFO L895 garLoopResultBuilder]: At program point L4493(line 4493) the Hoare annotation is: false [2023-11-23 20:34:27,223 INFO L899 garLoopResultBuilder]: For program point L4493-1(lines 4482 4500) no Hoare annotation was computed. [2023-11-23 20:34:27,224 INFO L899 garLoopResultBuilder]: For program point $Ultimate##111(lines 3809 3813) no Hoare annotation was computed. [2023-11-23 20:34:27,224 INFO L895 garLoopResultBuilder]: At program point L4527(line 4527) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2023-11-23 20:34:27,224 INFO L899 garLoopResultBuilder]: For program point L4527-1(line 4527) no Hoare annotation was computed. [2023-11-23 20:34:27,224 INFO L899 garLoopResultBuilder]: For program point $Ultimate##125(lines 3040 3044) no Hoare annotation was computed. [2023-11-23 20:34:27,224 INFO L899 garLoopResultBuilder]: For program point xsEXIT(lines 3326 3364) no Hoare annotation was computed. [2023-11-23 20:34:27,224 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3326 3364) the Hoare annotation is: true [2023-11-23 20:34:27,225 INFO L899 garLoopResultBuilder]: For program point $Ultimate##5(lines 3351 3355) no Hoare annotation was computed. [2023-11-23 20:34:27,225 INFO L902 garLoopResultBuilder]: At program point L3392(line 3392) the Hoare annotation is: true [2023-11-23 20:34:27,225 INFO L899 garLoopResultBuilder]: For program point L3393(lines 3393 3396) no Hoare annotation was computed. [2023-11-23 20:34:27,225 INFO L899 garLoopResultBuilder]: For program point L3392-1(line 3392) no Hoare annotation was computed. [2023-11-23 20:34:27,225 INFO L899 garLoopResultBuilder]: For program point L3388(lines 3388 3391) no Hoare annotation was computed. [2023-11-23 20:34:27,225 INFO L899 garLoopResultBuilder]: For program point L3387-1(line 3387) no Hoare annotation was computed. [2023-11-23 20:34:27,225 INFO L902 garLoopResultBuilder]: At program point L3387(line 3387) the Hoare annotation is: true [2023-11-23 20:34:27,226 INFO L899 garLoopResultBuilder]: For program point pg_identifyEXIT(lines 3365 3406) no Hoare annotation was computed. [2023-11-23 20:34:27,226 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3365 3406) the Hoare annotation is: true [2023-11-23 20:34:27,226 INFO L902 garLoopResultBuilder]: At program point L3400(lines 3400 3401) the Hoare annotation is: true [2023-11-23 20:34:27,226 INFO L902 garLoopResultBuilder]: At program point L3398(line 3398) the Hoare annotation is: true [2023-11-23 20:34:27,226 INFO L899 garLoopResultBuilder]: For program point L3399(line 3399) no Hoare annotation was computed. [2023-11-23 20:34:27,226 INFO L899 garLoopResultBuilder]: For program point L3400-1(lines 3400 3401) no Hoare annotation was computed. [2023-11-23 20:34:27,227 INFO L899 garLoopResultBuilder]: For program point pg_identifyFINAL(lines 3365 3406) no Hoare annotation was computed. [2023-11-23 20:34:27,227 INFO L899 garLoopResultBuilder]: For program point L3397(lines 3397 3403) no Hoare annotation was computed. [2023-11-23 20:34:27,227 INFO L902 garLoopResultBuilder]: At program point L3398-1(line 3398) the Hoare annotation is: true [2023-11-23 20:34:27,227 INFO L899 garLoopResultBuilder]: For program point L3397-2(lines 3397 3403) no Hoare annotation was computed. [2023-11-23 20:34:27,227 INFO L899 garLoopResultBuilder]: For program point pi_write_blockEXIT(lines 4569 4571) no Hoare annotation was computed. [2023-11-23 20:34:27,227 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4569 4571) the Hoare annotation is: true [2023-11-23 20:34:27,230 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:27,232 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:34:27,246 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_mutex_of_device~0 [2023-11-23 20:34:27,247 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~disable~0 [2023-11-23 20:34:27,247 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_lock~0 [2023-11-23 20:34:27,247 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_pg_mutex~0 [2023-11-23 20:34:27,247 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 [2023-11-23 20:34:27,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:34:27 BoogieIcfgContainer [2023-11-23 20:34:27,248 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:34:27,249 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:34:27,249 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:34:27,249 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:34:27,250 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:10" (3/4) ... [2023-11-23 20:34:27,252 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:34:27,256 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_from_user [2023-11-23 20:34:27,256 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_release [2023-11-23 20:34:27,256 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_init [2023-11-23 20:34:27,256 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure write_reg [2023-11-23 20:34:27,256 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_sleep [2023-11-23 20:34:27,256 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_read_regr [2023-11-23 20:34:27,257 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure might_fault [2023-11-23 20:34:27,257 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2023-11-23 20:34:27,257 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_disconnect [2023-11-23 20:34:27,257 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_probe [2023-11-23 20:34:27,257 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure status_reg [2023-11-23 20:34:27,257 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_completion [2023-11-23 20:34:27,257 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_unregister_chrdev_11 [2023-11-23 20:34:27,258 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure DRIVE [2023-11-23 20:34:27,258 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_unlock [2023-11-23 20:34:27,258 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_to_user [2023-11-23 20:34:27,258 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_wait [2023-11-23 20:34:27,258 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2023-11-23 20:34:27,258 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_write [2023-11-23 20:34:27,258 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_connect [2023-11-23 20:34:27,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_command [2023-11-23 20:34:27,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2023-11-23 20:34:27,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure clear_bit [2023-11-23 20:34:27,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_reg [2023-11-23 20:34:27,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_reset [2023-11-23 20:34:27,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2023-11-23 20:34:27,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock [2023-11-23 20:34:27,260 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2023-11-23 20:34:27,260 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure xs [2023-11-23 20:34:27,260 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_identify [2023-11-23 20:34:27,260 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_write_block [2023-11-23 20:34:27,295 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 318 nodes and edges [2023-11-23 20:34:27,299 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 114 nodes and edges [2023-11-23 20:34:27,304 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2023-11-23 20:34:27,308 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-23 20:34:27,312 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 20:34:27,316 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-23 20:34:27,320 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:34:27,664 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 20:34:27,665 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 20:34:27,665 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:34:27,665 INFO L158 Benchmark]: Toolchain (without parser) took 22689.55ms. Allocated memory was 151.0MB in the beginning and 358.6MB in the end (delta: 207.6MB). Free memory was 115.9MB in the beginning and 226.7MB in the end (delta: -110.9MB). Peak memory consumption was 95.2MB. Max. memory is 16.1GB. [2023-11-23 20:34:27,666 INFO L158 Benchmark]: CDTParser took 1.23ms. Allocated memory is still 123.7MB. Free memory was 95.9MB in the beginning and 95.8MB in the end (delta: 73.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:34:27,666 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1866.69ms. Allocated memory is still 151.0MB. Free memory was 115.9MB in the beginning and 90.1MB in the end (delta: 25.7MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. [2023-11-23 20:34:27,667 INFO L158 Benchmark]: Boogie Procedure Inliner took 178.51ms. Allocated memory is still 151.0MB. Free memory was 90.1MB in the beginning and 81.0MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 20:34:27,667 INFO L158 Benchmark]: Boogie Preprocessor took 136.27ms. Allocated memory is still 151.0MB. Free memory was 81.0MB in the beginning and 72.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 20:34:27,668 INFO L158 Benchmark]: RCFGBuilder took 3376.41ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 72.0MB in the beginning and 124.0MB in the end (delta: -52.0MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. [2023-11-23 20:34:27,669 INFO L158 Benchmark]: TraceAbstraction took 16704.82ms. Allocated memory was 205.5MB in the beginning and 358.6MB in the end (delta: 153.1MB). Free memory was 122.9MB in the beginning and 260.3MB in the end (delta: -137.3MB). Peak memory consumption was 192.4MB. Max. memory is 16.1GB. [2023-11-23 20:34:27,669 INFO L158 Benchmark]: Witness Printer took 416.25ms. Allocated memory is still 358.6MB. Free memory was 260.3MB in the beginning and 226.7MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-23 20:34:27,673 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23ms. Allocated memory is still 123.7MB. Free memory was 95.9MB in the beginning and 95.8MB in the end (delta: 73.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1866.69ms. Allocated memory is still 151.0MB. Free memory was 115.9MB in the beginning and 90.1MB in the end (delta: 25.7MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 178.51ms. Allocated memory is still 151.0MB. Free memory was 90.1MB in the beginning and 81.0MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 136.27ms. Allocated memory is still 151.0MB. Free memory was 81.0MB in the beginning and 72.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 3376.41ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 72.0MB in the beginning and 124.0MB in the end (delta: -52.0MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. * TraceAbstraction took 16704.82ms. Allocated memory was 205.5MB in the beginning and 358.6MB in the end (delta: 153.1MB). Free memory was 122.9MB in the beginning and 260.3MB in the end (delta: -137.3MB). Peak memory consumption was 192.4MB. Max. memory is 16.1GB. * Witness Printer took 416.25ms. Allocated memory is still 358.6MB. Free memory was 260.3MB in the beginning and 226.7MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 2808]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [2808] - GenericResultAtLocation [Line: 2815]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [2815-2816] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_mutex_of_device~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~disable~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_lock~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_pg_mutex~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 4044]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 379 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.6s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3437 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3427 mSDsluCounter, 8022 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2726 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1439 IncrementalHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 5296 mSDtfsCounter, 1439 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 318 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=921occurred in iteration=10, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 30 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 135 LocationsWithAnnotation, 3639 PreInvPairs, 3687 NumberOfFragments, 678 HoareAnnotationTreeSize, 3639 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 135 FomulaSimplificationsInter, 13183 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 643 NumberOfCodeBlocks, 643 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 625 ConstructedInterpolants, 0 QuantifiedInterpolants, 1011 SizeOfPredicates, 0 NumberOfNonLiveVariables, 6188 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 57/64 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 3707]: Loop Invariant Derived loop invariant: ((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 3092]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3033]: Loop Invariant Derived loop invariant: ((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 2921]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4032]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3254]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3201]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3063]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3201]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3076]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3413]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 3254]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3168]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-23 20:34:27,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3026ec9-11c1-450b-921b-6ace84a19c44/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE