./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/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_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX --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-cf1a783 [2023-11-12 00:55:19,779 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:55:19,898 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:55:19,903 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:55:19,904 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:55:19,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:55:19,933 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:55:19,934 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:55:19,935 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:55:19,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:55:19,941 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:55:19,942 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:55:19,943 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:55:19,945 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:55:19,945 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:55:19,946 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:55:19,946 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:55:19,947 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:55:19,947 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:55:19,948 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:55:19,948 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:55:19,949 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:55:19,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:55:19,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:55:19,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:55:19,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:55:19,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:55:19,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:55:19,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:55:19,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:55:19,954 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:55:19,955 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:55:19,955 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:55:19,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:19,956 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:55:19,956 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:55:19,956 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:55:19,957 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:55:19,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:55:19,957 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:55:19,958 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:55:19,958 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:55:19,958 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_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 410663f06ff647e412b04b4e33dc5a0aa773139e9be33f59003b35b6e81927a8 [2023-11-12 00:55:20,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:55:20,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:55:20,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:55:20,351 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:55:20,352 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:55:20,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2023-11-12 00:55:23,555 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:55:24,046 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:55:24,048 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2023-11-12 00:55:24,090 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/data/b6afd1733/3c9f658a32f14fc2b00134ca4f8074c3/FLAG096649ec4 [2023-11-12 00:55:24,108 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/data/b6afd1733/3c9f658a32f14fc2b00134ca4f8074c3 [2023-11-12 00:55:24,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:55:24,118 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:55:24,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:24,124 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:55:24,129 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:55:24,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:24" (1/1) ... [2023-11-12 00:55:24,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12fda93d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:24, skipping insertion in model container [2023-11-12 00:55:24,131 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:24" (1/1) ... [2023-11-12 00:55:24,253 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:55:25,214 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_c0eae6a4-bc24-456a-aa7a-9a0021737a06/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i[108133,108146] [2023-11-12 00:55:25,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:25,314 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:55:25,398 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] [2023-11-12 00:55:25,401 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] [2023-11-12 00:55:25,478 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_c0eae6a4-bc24-456a-aa7a-9a0021737a06/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i[108133,108146] [2023-11-12 00:55:25,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:25,540 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:55:25,548 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:55:25,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:25 WrapperNode [2023-11-12 00:55:25,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:25,550 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:25,550 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:55:25,550 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:55:25,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:25" (1/1) ... [2023-11-12 00:55:25,629 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:25" (1/1) ... [2023-11-12 00:55:25,693 INFO L138 Inliner]: procedures = 131, calls = 541, calls flagged for inlining = 49, calls inlined = 41, statements flattened = 1270 [2023-11-12 00:55:25,694 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:25,694 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:55:25,695 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:55:25,695 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:55:25,704 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:25" (1/1) ... [2023-11-12 00:55:25,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:25" (1/1) ... [2023-11-12 00:55:25,716 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:25" (1/1) ... [2023-11-12 00:55:25,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:25" (1/1) ... [2023-11-12 00:55:25,765 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:25" (1/1) ... [2023-11-12 00:55:25,775 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:25" (1/1) ... [2023-11-12 00:55:25,784 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:25" (1/1) ... [2023-11-12 00:55:25,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:25" (1/1) ... [2023-11-12 00:55:25,808 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:55:25,815 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:55:25,815 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:55:25,815 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:55:25,816 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:25" (1/1) ... [2023-11-12 00:55:25,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:25,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:25,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:55:25,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:55:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2023-11-12 00:55:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2023-11-12 00:55:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2023-11-12 00:55:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2023-11-12 00:55:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2023-11-12 00:55:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2023-11-12 00:55:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2023-11-12 00:55:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2023-11-12 00:55:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:55:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2023-11-12 00:55:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2023-11-12 00:55:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:55:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:55:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure pg_sleep [2023-11-12 00:55:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_sleep [2023-11-12 00:55:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure pg_completion [2023-11-12 00:55:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_completion [2023-11-12 00:55:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:55:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 00:55:25,902 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 00:55:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-12 00:55:25,902 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-12 00:55:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure pg_wait [2023-11-12 00:55:25,902 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_wait [2023-11-12 00:55:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 00:55:25,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 00:55:25,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:55:25,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:55:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-12 00:55:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-12 00:55:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:55:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-12 00:55:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-12 00:55:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-12 00:55:25,906 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-12 00:55:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:55:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_11 [2023-11-12 00:55:25,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_11 [2023-11-12 00:55:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:55:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:55:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2023-11-12 00:55:25,907 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2023-11-12 00:55:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure pg_write [2023-11-12 00:55:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_write [2023-11-12 00:55:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 00:55:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:55:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure pg_reset [2023-11-12 00:55:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_reset [2023-11-12 00:55:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure pg_identify [2023-11-12 00:55:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_identify [2023-11-12 00:55:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2023-11-12 00:55:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2023-11-12 00:55:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:55:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:55:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2023-11-12 00:55:25,910 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2023-11-12 00:55:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2023-11-12 00:55:25,910 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2023-11-12 00:55:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-12 00:55:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-12 00:55:25,911 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:55:25,912 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:55:25,912 INFO L130 BoogieDeclarations]: Found specification of procedure pg_probe [2023-11-12 00:55:25,913 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_probe [2023-11-12 00:55:25,913 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2023-11-12 00:55:25,913 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2023-11-12 00:55:25,913 INFO L130 BoogieDeclarations]: Found specification of procedure pg_command [2023-11-12 00:55:25,913 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_command [2023-11-12 00:55:25,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:55:25,914 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-12 00:55:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-12 00:55:25,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:55:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:55:25,915 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2023-11-12 00:55:25,915 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2023-11-12 00:55:26,372 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:55:26,375 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:55:28,445 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:55:29,028 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:55:29,028 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:55:29,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:29 BoogieIcfgContainer [2023-11-12 00:55:29,033 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:55:29,036 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:55:29,036 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:55:29,040 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:55:29,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:55:24" (1/3) ... [2023-11-12 00:55:29,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3392f9db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:29, skipping insertion in model container [2023-11-12 00:55:29,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:25" (2/3) ... [2023-11-12 00:55:29,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3392f9db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:29, skipping insertion in model container [2023-11-12 00:55:29,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:29" (3/3) ... [2023-11-12 00:55:29,043 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2023-11-12 00:55:29,068 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:55:29,068 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:55:29,141 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:55:29,150 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;@d1402d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:55:29,150 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:55:29,158 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) [2023-11-12 00:55:29,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:55:29,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:29,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:55:29,171 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:29,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:29,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1399547742, now seen corresponding path program 1 times [2023-11-12 00:55:29,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:29,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421025852] [2023-11-12 00:55:29,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:29,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:29,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:55:29,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:29,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421025852] [2023-11-12 00:55:29,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421025852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:29,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:55:29,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:55:29,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730164845] [2023-11-12 00:55:29,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:29,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:55:29,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:29,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:55:29,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:55:29,743 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) [2023-11-12 00:55:30,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:30,405 INFO L93 Difference]: Finished difference Result 995 states and 1427 transitions. [2023-11-12 00:55:30,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:55:30,407 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 [2023-11-12 00:55:30,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:30,438 INFO L225 Difference]: With dead ends: 995 [2023-11-12 00:55:30,438 INFO L226 Difference]: Without dead ends: 613 [2023-11-12 00:55:30,450 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 [2023-11-12 00:55:30,454 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 [2023-11-12 00:55:30,456 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] [2023-11-12 00:55:30,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2023-11-12 00:55:30,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 599. [2023-11-12 00:55:30,571 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) [2023-11-12 00:55:30,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 848 transitions. [2023-11-12 00:55:30,580 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 848 transitions. Word has length 13 [2023-11-12 00:55:30,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:55:30,581 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 848 transitions. [2023-11-12 00:55:30,581 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) [2023-11-12 00:55:30,582 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 848 transitions. [2023-11-12 00:55:30,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 00:55:30,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:30,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:55:30,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:55:30,585 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:30,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:30,585 INFO L85 PathProgramCache]: Analyzing trace with hash 2091576352, now seen corresponding path program 1 times [2023-11-12 00:55:30,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:30,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972000399] [2023-11-12 00:55:30,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:30,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:30,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:55:30,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:30,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972000399] [2023-11-12 00:55:30,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972000399] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:30,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:55:30,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:55:30,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013338183] [2023-11-12 00:55:30,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:30,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:55:30,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:30,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:55:30,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:55:30,760 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) [2023-11-12 00:55:31,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:31,093 INFO L93 Difference]: Finished difference Result 1197 states and 1695 transitions. [2023-11-12 00:55:31,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:55:31,094 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 [2023-11-12 00:55:31,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:31,100 INFO L225 Difference]: With dead ends: 1197 [2023-11-12 00:55:31,100 INFO L226 Difference]: Without dead ends: 599 [2023-11-12 00:55:31,103 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 [2023-11-12 00:55:31,105 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 527 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2023-11-12 00:55:31,106 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] [2023-11-12 00:55:31,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2023-11-12 00:55:31,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2023-11-12 00:55:31,168 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) [2023-11-12 00:55:31,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 846 transitions. [2023-11-12 00:55:31,178 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 846 transitions. Word has length 15 [2023-11-12 00:55:31,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:55:31,179 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 846 transitions. [2023-11-12 00:55:31,179 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) [2023-11-12 00:55:31,179 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 846 transitions. [2023-11-12 00:55:31,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 00:55:31,181 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:31,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:55:31,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:55:31,182 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:31,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:31,183 INFO L85 PathProgramCache]: Analyzing trace with hash -176956785, now seen corresponding path program 1 times [2023-11-12 00:55:31,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:31,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325011587] [2023-11-12 00:55:31,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:31,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:31,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:55:31,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:31,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325011587] [2023-11-12 00:55:31,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325011587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:31,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:55:31,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:55:31,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857274033] [2023-11-12 00:55:31,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:31,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:55:31,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:31,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:55:31,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:55:31,327 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) [2023-11-12 00:55:31,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:31,855 INFO L93 Difference]: Finished difference Result 1373 states and 1925 transitions. [2023-11-12 00:55:31,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:55:31,856 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 [2023-11-12 00:55:31,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:31,863 INFO L225 Difference]: With dead ends: 1373 [2023-11-12 00:55:31,863 INFO L226 Difference]: Without dead ends: 775 [2023-11-12 00:55:31,866 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 [2023-11-12 00:55:31,870 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, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:55:31,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 896 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 00:55:31,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2023-11-12 00:55:31,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 775. [2023-11-12 00:55:31,941 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) [2023-11-12 00:55:31,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1077 transitions. [2023-11-12 00:55:31,948 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1077 transitions. Word has length 17 [2023-11-12 00:55:31,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:55:31,948 INFO L495 AbstractCegarLoop]: Abstraction has 775 states and 1077 transitions. [2023-11-12 00:55:31,949 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) [2023-11-12 00:55:31,949 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1077 transitions. [2023-11-12 00:55:31,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 00:55:31,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:31,951 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] [2023-11-12 00:55:31,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:55:31,951 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:31,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:31,952 INFO L85 PathProgramCache]: Analyzing trace with hash 2039914886, now seen corresponding path program 1 times [2023-11-12 00:55:31,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:31,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653644760] [2023-11-12 00:55:31,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:31,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:32,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:55:32,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:32,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653644760] [2023-11-12 00:55:32,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653644760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:32,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:55:32,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:55:32,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678223424] [2023-11-12 00:55:32,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:32,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:55:32,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:32,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:55:32,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:55:32,177 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) [2023-11-12 00:55:32,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:32,570 INFO L93 Difference]: Finished difference Result 1548 states and 2154 transitions. [2023-11-12 00:55:32,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:55:32,571 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 [2023-11-12 00:55:32,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:32,577 INFO L225 Difference]: With dead ends: 1548 [2023-11-12 00:55:32,577 INFO L226 Difference]: Without dead ends: 783 [2023-11-12 00:55:32,581 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 [2023-11-12 00:55:32,585 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 [2023-11-12 00:55:32,586 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] [2023-11-12 00:55:32,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2023-11-12 00:55:32,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 777. [2023-11-12 00:55:32,643 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) [2023-11-12 00:55:32,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1079 transitions. [2023-11-12 00:55:32,650 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1079 transitions. Word has length 24 [2023-11-12 00:55:32,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:55:32,651 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 1079 transitions. [2023-11-12 00:55:32,651 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) [2023-11-12 00:55:32,651 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1079 transitions. [2023-11-12 00:55:32,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-12 00:55:32,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:32,657 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] [2023-11-12 00:55:32,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:55:32,661 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:32,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:32,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1096934319, now seen corresponding path program 1 times [2023-11-12 00:55:32,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:32,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69003829] [2023-11-12 00:55:32,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:32,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:32,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:55:32,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:32,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69003829] [2023-11-12 00:55:32,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69003829] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:55:32,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001951393] [2023-11-12 00:55:32,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:32,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:55:32,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:32,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:55:32,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:55:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:33,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:55:33,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:55:33,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 00:55:33,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:55:33,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001951393] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:33,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:55:33,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-12 00:55:33,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766717074] [2023-11-12 00:55:33,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:33,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:55:33,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:33,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:55:33,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:55:33,386 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) [2023-11-12 00:55:33,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:33,813 INFO L93 Difference]: Finished difference Result 1570 states and 2186 transitions. [2023-11-12 00:55:33,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:55:33,814 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 [2023-11-12 00:55:33,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:33,821 INFO L225 Difference]: With dead ends: 1570 [2023-11-12 00:55:33,821 INFO L226 Difference]: Without dead ends: 803 [2023-11-12 00:55:33,827 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 [2023-11-12 00:55:33,828 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 [2023-11-12 00:55:33,828 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] [2023-11-12 00:55:33,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2023-11-12 00:55:33,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 801. [2023-11-12 00:55:33,895 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) [2023-11-12 00:55:33,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1117 transitions. [2023-11-12 00:55:33,919 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1117 transitions. Word has length 30 [2023-11-12 00:55:33,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:55:33,919 INFO L495 AbstractCegarLoop]: Abstraction has 801 states and 1117 transitions. [2023-11-12 00:55:33,920 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) [2023-11-12 00:55:33,920 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1117 transitions. [2023-11-12 00:55:33,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-12 00:55:33,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:33,922 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] [2023-11-12 00:55:33,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:55:34,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:55:34,130 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:34,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:34,131 INFO L85 PathProgramCache]: Analyzing trace with hash 480653105, now seen corresponding path program 1 times [2023-11-12 00:55:34,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:34,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450874333] [2023-11-12 00:55:34,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:34,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:34,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:55:34,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:34,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450874333] [2023-11-12 00:55:34,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450874333] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:55:34,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297555564] [2023-11-12 00:55:34,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:34,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:55:34,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:34,313 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:55:34,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:55:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:34,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:55:34,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:55:34,771 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 00:55:34,771 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:55:34,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297555564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:34,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:55:34,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-12 00:55:34,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644864607] [2023-11-12 00:55:34,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:34,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:55:34,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:34,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:55:34,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:55:34,775 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) [2023-11-12 00:55:35,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:35,033 INFO L93 Difference]: Finished difference Result 803 states and 1118 transitions. [2023-11-12 00:55:35,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:55:35,034 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 [2023-11-12 00:55:35,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:35,040 INFO L225 Difference]: With dead ends: 803 [2023-11-12 00:55:35,040 INFO L226 Difference]: Without dead ends: 800 [2023-11-12 00:55:35,041 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 [2023-11-12 00:55:35,042 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, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:55:35,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 454 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:55:35,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2023-11-12 00:55:35,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 800. [2023-11-12 00:55:35,139 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) [2023-11-12 00:55:35,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1115 transitions. [2023-11-12 00:55:35,147 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1115 transitions. Word has length 34 [2023-11-12 00:55:35,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:55:35,149 INFO L495 AbstractCegarLoop]: Abstraction has 800 states and 1115 transitions. [2023-11-12 00:55:35,149 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) [2023-11-12 00:55:35,149 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1115 transitions. [2023-11-12 00:55:35,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-12 00:55:35,153 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:35,153 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] [2023-11-12 00:55:35,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:55:35,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:55:35,361 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:35,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:35,361 INFO L85 PathProgramCache]: Analyzing trace with hash 2015068023, now seen corresponding path program 1 times [2023-11-12 00:55:35,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:35,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843282923] [2023-11-12 00:55:35,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:35,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:35,599 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:55:35,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:35,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843282923] [2023-11-12 00:55:35,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843282923] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:55:35,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632590228] [2023-11-12 00:55:35,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:35,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:55:35,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:35,602 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:55:35,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 00:55:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:36,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:55:36,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:55:36,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 00:55:36,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:55:36,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632590228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:36,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:55:36,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-12 00:55:36,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116197010] [2023-11-12 00:55:36,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:36,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:55:36,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:36,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:55:36,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:55:36,085 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) [2023-11-12 00:55:36,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:36,347 INFO L93 Difference]: Finished difference Result 802 states and 1116 transitions. [2023-11-12 00:55:36,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:55:36,348 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 [2023-11-12 00:55:36,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:36,353 INFO L225 Difference]: With dead ends: 802 [2023-11-12 00:55:36,354 INFO L226 Difference]: Without dead ends: 799 [2023-11-12 00:55:36,355 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 [2023-11-12 00:55:36,355 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, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:55:36,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 452 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:55:36,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2023-11-12 00:55:36,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 799. [2023-11-12 00:55:36,415 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) [2023-11-12 00:55:36,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1113 transitions. [2023-11-12 00:55:36,422 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1113 transitions. Word has length 35 [2023-11-12 00:55:36,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:55:36,423 INFO L495 AbstractCegarLoop]: Abstraction has 799 states and 1113 transitions. [2023-11-12 00:55:36,423 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) [2023-11-12 00:55:36,423 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1113 transitions. [2023-11-12 00:55:36,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-12 00:55:36,424 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:36,424 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] [2023-11-12 00:55:36,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:55:36,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:55:36,632 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:36,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:36,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1957672204, now seen corresponding path program 1 times [2023-11-12 00:55:36,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:36,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243570607] [2023-11-12 00:55:36,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:36,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:36,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:55:36,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:36,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243570607] [2023-11-12 00:55:36,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243570607] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:55:36,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512421111] [2023-11-12 00:55:36,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:36,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:55:36,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:36,857 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:55:36,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 00:55:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:37,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:55:37,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:55:37,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 00:55:37,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:55:37,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512421111] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:37,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:55:37,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-12 00:55:37,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555575973] [2023-11-12 00:55:37,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:37,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:55:37,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:37,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:55:37,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:55:37,300 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) [2023-11-12 00:55:37,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:37,546 INFO L93 Difference]: Finished difference Result 801 states and 1114 transitions. [2023-11-12 00:55:37,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:55:37,547 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 [2023-11-12 00:55:37,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:37,554 INFO L225 Difference]: With dead ends: 801 [2023-11-12 00:55:37,554 INFO L226 Difference]: Without dead ends: 798 [2023-11-12 00:55:37,555 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 [2023-11-12 00:55:37,556 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 [2023-11-12 00:55:37,557 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] [2023-11-12 00:55:37,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2023-11-12 00:55:37,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2023-11-12 00:55:37,621 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) [2023-11-12 00:55:37,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1111 transitions. [2023-11-12 00:55:37,628 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1111 transitions. Word has length 36 [2023-11-12 00:55:37,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:55:37,628 INFO L495 AbstractCegarLoop]: Abstraction has 798 states and 1111 transitions. [2023-11-12 00:55:37,629 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) [2023-11-12 00:55:37,629 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1111 transitions. [2023-11-12 00:55:37,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-12 00:55:37,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:37,631 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] [2023-11-12 00:55:37,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 00:55:37,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:55:37,839 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:37,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:37,840 INFO L85 PathProgramCache]: Analyzing trace with hash -558562790, now seen corresponding path program 1 times [2023-11-12 00:55:37,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:37,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79713747] [2023-11-12 00:55:37,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:37,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:38,000 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:55:38,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:38,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79713747] [2023-11-12 00:55:38,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79713747] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:55:38,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489226794] [2023-11-12 00:55:38,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:38,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:55:38,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:38,003 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:55:38,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 00:55:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:38,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:55:38,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:55:38,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 00:55:38,453 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:55:38,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489226794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:38,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:55:38,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-12 00:55:38,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315889775] [2023-11-12 00:55:38,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:38,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:55:38,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:38,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:55:38,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:55:38,456 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) [2023-11-12 00:55:38,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:38,855 INFO L93 Difference]: Finished difference Result 940 states and 1300 transitions. [2023-11-12 00:55:38,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:55:38,856 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 [2023-11-12 00:55:38,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:38,862 INFO L225 Difference]: With dead ends: 940 [2023-11-12 00:55:38,862 INFO L226 Difference]: Without dead ends: 919 [2023-11-12 00:55:38,863 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 [2023-11-12 00:55:38,865 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 459 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2023-11-12 00:55:38,866 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] [2023-11-12 00:55:38,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-11-12 00:55:38,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2023-11-12 00:55:38,950 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) [2023-11-12 00:55:38,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1272 transitions. [2023-11-12 00:55:38,958 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1272 transitions. Word has length 37 [2023-11-12 00:55:38,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:55:38,958 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1272 transitions. [2023-11-12 00:55:38,959 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) [2023-11-12 00:55:38,959 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1272 transitions. [2023-11-12 00:55:38,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-12 00:55:38,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:38,962 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] [2023-11-12 00:55:38,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 00:55:39,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:55:39,170 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:39,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:39,170 INFO L85 PathProgramCache]: Analyzing trace with hash -218552094, now seen corresponding path program 1 times [2023-11-12 00:55:39,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:39,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555140718] [2023-11-12 00:55:39,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:39,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:39,396 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 00:55:39,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:39,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555140718] [2023-11-12 00:55:39,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555140718] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:55:39,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913826961] [2023-11-12 00:55:39,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:39,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:55:39,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:39,398 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:55:39,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 00:55:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:39,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 00:55:39,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:55:39,841 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-12 00:55:39,841 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:55:39,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913826961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:39,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:55:39,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-12 00:55:39,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136642438] [2023-11-12 00:55:39,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:39,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:55:39,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:39,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:55:39,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:55:39,848 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) [2023-11-12 00:55:40,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:40,274 INFO L93 Difference]: Finished difference Result 1838 states and 2546 transitions. [2023-11-12 00:55:40,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:55:40,275 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 [2023-11-12 00:55:40,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:40,283 INFO L225 Difference]: With dead ends: 1838 [2023-11-12 00:55:40,284 INFO L226 Difference]: Without dead ends: 929 [2023-11-12 00:55:40,288 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 [2023-11-12 00:55:40,289 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 8 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2023-11-12 00:55:40,290 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] [2023-11-12 00:55:40,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2023-11-12 00:55:40,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 921. [2023-11-12 00:55:40,401 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) [2023-11-12 00:55:40,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1274 transitions. [2023-11-12 00:55:40,411 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1274 transitions. Word has length 56 [2023-11-12 00:55:40,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:55:40,412 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1274 transitions. [2023-11-12 00:55:40,412 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) [2023-11-12 00:55:40,412 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1274 transitions. [2023-11-12 00:55:40,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-12 00:55:40,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:40,415 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] [2023-11-12 00:55:40,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 00:55:40,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 00:55:40,623 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:40,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:40,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1132714853, now seen corresponding path program 1 times [2023-11-12 00:55:40,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:40,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722814662] [2023-11-12 00:55:40,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:40,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:40,832 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-12 00:55:40,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:40,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722814662] [2023-11-12 00:55:40,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722814662] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:55:40,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846850022] [2023-11-12 00:55:40,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:40,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:55:40,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:40,835 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:55:40,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 00:55:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:41,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:55:41,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:55:41,259 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-12 00:55:41,259 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:55:41,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846850022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:41,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:55:41,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-12 00:55:41,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488872860] [2023-11-12 00:55:41,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:41,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:55:41,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:41,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:55:41,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:55:41,263 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) [2023-11-12 00:55:41,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:41,691 INFO L93 Difference]: Finished difference Result 921 states and 1274 transitions. [2023-11-12 00:55:41,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:55:41,692 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 [2023-11-12 00:55:41,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:41,694 INFO L225 Difference]: With dead ends: 921 [2023-11-12 00:55:41,694 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:55:41,697 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 [2023-11-12 00:55:41,698 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 237 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:55:41,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 972 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 00:55:41,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:55:41,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:55:41,700 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) [2023-11-12 00:55:41,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:55:41,700 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2023-11-12 00:55:41,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:55:41,701 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:55:41,701 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) [2023-11-12 00:55:41,701 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:55:41,701 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:55:41,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:55:41,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 00:55:41,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:55:41,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:55:44,089 INFO L899 garLoopResultBuilder]: For program point L2977(line 2977) no Hoare annotation was computed. [2023-11-12 00:55:44,089 INFO L899 garLoopResultBuilder]: For program point L2971-1(line 2971) no Hoare annotation was computed. [2023-11-12 00:55:44,089 INFO L902 garLoopResultBuilder]: At program point L2971(line 2971) the Hoare annotation is: true [2023-11-12 00:55:44,089 INFO L899 garLoopResultBuilder]: For program point L2967(lines 2967 2978) no Hoare annotation was computed. [2023-11-12 00:55:44,089 INFO L899 garLoopResultBuilder]: For program point L2967-2(lines 2963 2979) no Hoare annotation was computed. [2023-11-12 00:55:44,089 INFO L899 garLoopResultBuilder]: For program point L2963(lines 2963 2979) no Hoare annotation was computed. [2023-11-12 00:55:44,090 INFO L902 garLoopResultBuilder]: At program point L2961-1(line 2961) the Hoare annotation is: true [2023-11-12 00:55:44,090 INFO L902 garLoopResultBuilder]: At program point L2961(line 2961) the Hoare annotation is: true [2023-11-12 00:55:44,090 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2951 2982) the Hoare annotation is: true [2023-11-12 00:55:44,090 INFO L899 garLoopResultBuilder]: For program point copy_from_userEXIT(lines 2951 2982) no Hoare annotation was computed. [2023-11-12 00:55:44,090 INFO L902 garLoopResultBuilder]: At program point L2972-2(lines 2972 2976) the Hoare annotation is: true [2023-11-12 00:55:44,090 INFO L902 garLoopResultBuilder]: At program point L2968(line 2968) the Hoare annotation is: true [2023-11-12 00:55:44,090 INFO L902 garLoopResultBuilder]: At program point L2966(line 2966) the Hoare annotation is: true [2023-11-12 00:55:44,090 INFO L899 garLoopResultBuilder]: For program point L2968-1(line 2968) no Hoare annotation was computed. [2023-11-12 00:55:44,090 INFO L902 garLoopResultBuilder]: At program point L2964(line 2964) the Hoare annotation is: true [2023-11-12 00:55:44,091 INFO L899 garLoopResultBuilder]: For program point L2966-1(line 2966) no Hoare annotation was computed. [2023-11-12 00:55:44,091 INFO L899 garLoopResultBuilder]: For program point L2962(line 2962) no Hoare annotation was computed. [2023-11-12 00:55:44,091 INFO L899 garLoopResultBuilder]: For program point L2964-1(line 2964) no Hoare annotation was computed. [2023-11-12 00:55:44,091 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4566 4568) the Hoare annotation is: true [2023-11-12 00:55:44,091 INFO L899 garLoopResultBuilder]: For program point pi_releaseEXIT(lines 4566 4568) no Hoare annotation was computed. [2023-11-12 00:55:44,091 INFO L899 garLoopResultBuilder]: For program point pi_initEXIT(lines 4556 4558) no Hoare annotation was computed. [2023-11-12 00:55:44,091 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4556 4558) the Hoare annotation is: true [2023-11-12 00:55:44,091 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3063 3069) the Hoare annotation is: true [2023-11-12 00:55:44,091 INFO L899 garLoopResultBuilder]: For program point write_regEXIT(lines 3063 3069) no Hoare annotation was computed. [2023-11-12 00:55:44,091 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3076 3082) the Hoare annotation is: true [2023-11-12 00:55:44,091 INFO L899 garLoopResultBuilder]: For program point pg_sleepEXIT(lines 3076 3082) no Hoare annotation was computed. [2023-11-12 00:55:44,092 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4563 4565) the Hoare annotation is: true [2023-11-12 00:55:44,092 INFO L899 garLoopResultBuilder]: For program point pi_read_regrEXIT(lines 4563 4565) no Hoare annotation was computed. [2023-11-12 00:55:44,092 INFO L902 garLoopResultBuilder]: At program point might_faultFINAL(lines 4532 4534) the Hoare annotation is: true [2023-11-12 00:55:44,092 INFO L899 garLoopResultBuilder]: For program point might_faultEXIT(lines 4532 4534) no Hoare annotation was computed. [2023-11-12 00:55:44,092 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4576 4578) the Hoare annotation is: true [2023-11-12 00:55:44,092 INFO L899 garLoopResultBuilder]: For program point printkEXIT(lines 4576 4578) no Hoare annotation was computed. [2023-11-12 00:55:44,092 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4552 4554) the Hoare annotation is: true [2023-11-12 00:55:44,092 INFO L899 garLoopResultBuilder]: For program point pi_disconnectEXIT(lines 4552 4554) no Hoare annotation was computed. [2023-11-12 00:55:44,092 INFO L899 garLoopResultBuilder]: For program point L3425(lines 3425 3429) no Hoare annotation was computed. [2023-11-12 00:55:44,092 INFO L899 garLoopResultBuilder]: For program point pg_probeEXIT(lines 3407 3441) no Hoare annotation was computed. [2023-11-12 00:55:44,093 INFO L899 garLoopResultBuilder]: For program point L3419-1(line 3419) no Hoare annotation was computed. [2023-11-12 00:55:44,093 INFO L902 garLoopResultBuilder]: At program point L3419(line 3419) the Hoare annotation is: true [2023-11-12 00:55:44,093 INFO L899 garLoopResultBuilder]: For program point L3417(line 3417) no Hoare annotation was computed. [2023-11-12 00:55:44,093 INFO L899 garLoopResultBuilder]: For program point L3413-1(lines 3413 3438) no Hoare annotation was computed. [2023-11-12 00:55:44,093 INFO L899 garLoopResultBuilder]: For program point L3413(lines 3413 3438) no Hoare annotation was computed. [2023-11-12 00:55:44,093 INFO L902 garLoopResultBuilder]: At program point L3434(line 3434) the Hoare annotation is: true [2023-11-12 00:55:44,093 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3407 3441) the Hoare annotation is: true [2023-11-12 00:55:44,093 INFO L902 garLoopResultBuilder]: At program point L3432(line 3432) the Hoare annotation is: true [2023-11-12 00:55:44,093 INFO L902 garLoopResultBuilder]: At program point ldv_22850(lines 3413 3431) the Hoare annotation is: true [2023-11-12 00:55:44,093 INFO L899 garLoopResultBuilder]: For program point L3434-1(line 3434) no Hoare annotation was computed. [2023-11-12 00:55:44,094 INFO L899 garLoopResultBuilder]: For program point L3432-1(line 3432) no Hoare annotation was computed. [2023-11-12 00:55:44,094 INFO L899 garLoopResultBuilder]: For program point L3424(lines 3413 3431) no Hoare annotation was computed. [2023-11-12 00:55:44,094 INFO L899 garLoopResultBuilder]: For program point pg_probeFINAL(lines 3407 3441) no Hoare annotation was computed. [2023-11-12 00:55:44,094 INFO L899 garLoopResultBuilder]: For program point L3418(lines 3418 3422) no Hoare annotation was computed. [2023-11-12 00:55:44,094 INFO L899 garLoopResultBuilder]: For program point L3433(lines 3433 3437) no Hoare annotation was computed. [2023-11-12 00:55:44,094 INFO L902 garLoopResultBuilder]: At program point L3052(line 3052) the Hoare annotation is: true [2023-11-12 00:55:44,094 INFO L899 garLoopResultBuilder]: For program point L3052-1(line 3052) no Hoare annotation was computed. [2023-11-12 00:55:44,094 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3049 3055) the Hoare annotation is: true [2023-11-12 00:55:44,094 INFO L899 garLoopResultBuilder]: For program point status_regEXIT(lines 3049 3055) no Hoare annotation was computed. [2023-11-12 00:55:44,094 INFO L899 garLoopResultBuilder]: For program point L3202-1(line 3202) no Hoare annotation was computed. [2023-11-12 00:55:44,095 INFO L899 garLoopResultBuilder]: For program point L3231-1(line 3231) no Hoare annotation was computed. [2023-11-12 00:55:44,095 INFO L902 garLoopResultBuilder]: At program point L3231(line 3231) the Hoare annotation is: true [2023-11-12 00:55:44,095 INFO L902 garLoopResultBuilder]: At program point L3240(line 3240) the Hoare annotation is: true [2023-11-12 00:55:44,095 INFO L899 garLoopResultBuilder]: For program point L3207-1(line 3207) no Hoare annotation was computed. [2023-11-12 00:55:44,095 INFO L902 garLoopResultBuilder]: At program point L3207(line 3207) the Hoare annotation is: true [2023-11-12 00:55:44,095 INFO L899 garLoopResultBuilder]: For program point L3240-1(line 3240) no Hoare annotation was computed. [2023-11-12 00:55:44,095 INFO L902 garLoopResultBuilder]: At program point L3232(lines 3201 3242) the Hoare annotation is: true [2023-11-12 00:55:44,095 INFO L899 garLoopResultBuilder]: For program point L3220-1(lines 3220 3228) no Hoare annotation was computed. [2023-11-12 00:55:44,095 INFO L899 garLoopResultBuilder]: For program point L3216-1(lines 3201 3242) no Hoare annotation was computed. [2023-11-12 00:55:44,095 INFO L899 garLoopResultBuilder]: For program point L3212(lines 3212 3215) no Hoare annotation was computed. [2023-11-12 00:55:44,096 INFO L899 garLoopResultBuilder]: For program point L3212-2(lines 3201 3242) no Hoare annotation was computed. [2023-11-12 00:55:44,096 INFO L899 garLoopResultBuilder]: For program point L3233(line 3233) no Hoare annotation was computed. [2023-11-12 00:55:44,096 INFO L902 garLoopResultBuilder]: At program point L3221-2(lines 3221 3225) the Hoare annotation is: true [2023-11-12 00:55:44,096 INFO L899 garLoopResultBuilder]: For program point L3213-1(line 3213) no Hoare annotation was computed. [2023-11-12 00:55:44,096 INFO L902 garLoopResultBuilder]: At program point L3213(line 3213) the Hoare annotation is: true [2023-11-12 00:55:44,096 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3191 3243) the Hoare annotation is: true [2023-11-12 00:55:44,096 INFO L899 garLoopResultBuilder]: For program point L3234-4(lines 3234 3238) no Hoare annotation was computed. [2023-11-12 00:55:44,096 INFO L899 garLoopResultBuilder]: For program point L3226(line 3226) no Hoare annotation was computed. [2023-11-12 00:55:44,096 INFO L899 garLoopResultBuilder]: For program point pg_completionEXIT(lines 3191 3243) no Hoare annotation was computed. [2023-11-12 00:55:44,105 INFO L902 garLoopResultBuilder]: At program point ldv_22806(lines 3201 3242) the Hoare annotation is: true [2023-11-12 00:55:44,105 INFO L902 garLoopResultBuilder]: At program point L3210(line 3210) the Hoare annotation is: true [2023-11-12 00:55:44,106 INFO L899 garLoopResultBuilder]: For program point L3210-1(line 3210) no Hoare annotation was computed. [2023-11-12 00:55:44,106 INFO L899 garLoopResultBuilder]: For program point L3206(line 3206) no Hoare annotation was computed. [2023-11-12 00:55:44,106 INFO L902 garLoopResultBuilder]: At program point L3202(line 3202) the Hoare annotation is: true [2023-11-12 00:55:44,106 INFO L899 garLoopResultBuilder]: For program point ldv_unregister_chrdev_11EXIT(lines 4032 4039) no Hoare annotation was computed. [2023-11-12 00:55:44,106 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4032 4039) the Hoare annotation is: true [2023-11-12 00:55:44,107 INFO L899 garLoopResultBuilder]: For program point DRIVEEXIT(lines 3070 3075) no Hoare annotation was computed. [2023-11-12 00:55:44,107 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3070 3075) the Hoare annotation is: true [2023-11-12 00:55:44,107 INFO L899 garLoopResultBuilder]: For program point mutex_unlockEXIT(lines 4542 4544) no Hoare annotation was computed. [2023-11-12 00:55:44,107 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4542 4544) the Hoare annotation is: true [2023-11-12 00:55:44,107 INFO L899 garLoopResultBuilder]: For program point copy_to_userEXIT(lines 2983 2990) no Hoare annotation was computed. [2023-11-12 00:55:44,107 INFO L902 garLoopResultBuilder]: At program point L2986(line 2986) the Hoare annotation is: true [2023-11-12 00:55:44,108 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2983 2990) the Hoare annotation is: true [2023-11-12 00:55:44,108 INFO L899 garLoopResultBuilder]: For program point L2986-1(line 2986) no Hoare annotation was computed. [2023-11-12 00:55:44,108 INFO L899 garLoopResultBuilder]: For program point pg_waitFINAL(lines 3083 3137) no Hoare annotation was computed. [2023-11-12 00:55:44,108 INFO L899 garLoopResultBuilder]: For program point L3099(lines 3099 3103) no Hoare annotation was computed. [2023-11-12 00:55:44,108 INFO L902 garLoopResultBuilder]: At program point L3116(line 3116) the Hoare annotation is: true [2023-11-12 00:55:44,108 INFO L899 garLoopResultBuilder]: For program point L3116-1(line 3116) no Hoare annotation was computed. [2023-11-12 00:55:44,108 INFO L899 garLoopResultBuilder]: For program point L3117(lines 3117 3126) no Hoare annotation was computed. [2023-11-12 00:55:44,109 INFO L899 garLoopResultBuilder]: For program point L3117-2(lines 3113 3133) no Hoare annotation was computed. [2023-11-12 00:55:44,109 INFO L902 garLoopResultBuilder]: At program point L3118-2(lines 3118 3122) the Hoare annotation is: true [2023-11-12 00:55:44,109 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3083 3137) the Hoare annotation is: true [2023-11-12 00:55:44,109 INFO L902 garLoopResultBuilder]: At program point L3102(line 3102) the Hoare annotation is: true [2023-11-12 00:55:44,109 INFO L902 garLoopResultBuilder]: At program point L3102-1(lines 3092 3136) the Hoare annotation is: true [2023-11-12 00:55:44,109 INFO L899 garLoopResultBuilder]: For program point L3113-4(lines 3113 3134) no Hoare annotation was computed. [2023-11-12 00:55:44,110 INFO L899 garLoopResultBuilder]: For program point L3105(line 3105) no Hoare annotation was computed. [2023-11-12 00:55:44,110 INFO L902 garLoopResultBuilder]: At program point L3114(line 3114) the Hoare annotation is: true [2023-11-12 00:55:44,110 INFO L899 garLoopResultBuilder]: For program point L3114-1(line 3114) no Hoare annotation was computed. [2023-11-12 00:55:44,110 INFO L899 garLoopResultBuilder]: For program point pg_waitEXIT(lines 3083 3137) no Hoare annotation was computed. [2023-11-12 00:55:44,110 INFO L899 garLoopResultBuilder]: For program point L3106-15(lines 3106 3110) no Hoare annotation was computed. [2023-11-12 00:55:44,110 INFO L899 garLoopResultBuilder]: For program point L3123(lines 3123 3124) no Hoare annotation was computed. [2023-11-12 00:55:44,111 INFO L899 garLoopResultBuilder]: For program point L3115-1(line 3115) no Hoare annotation was computed. [2023-11-12 00:55:44,111 INFO L902 garLoopResultBuilder]: At program point L3115(line 3115) the Hoare annotation is: true [2023-11-12 00:55:44,111 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 4041 4046) the Hoare annotation is: true [2023-11-12 00:55:44,111 INFO L899 garLoopResultBuilder]: For program point ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4044) no Hoare annotation was computed. [2023-11-12 00:55:44,111 INFO L899 garLoopResultBuilder]: For program point ldv_errorEXIT(lines 4041 4046) no Hoare annotation was computed. [2023-11-12 00:55:44,111 INFO L902 garLoopResultBuilder]: At program point L3582(line 3582) the Hoare annotation is: true [2023-11-12 00:55:44,112 INFO L899 garLoopResultBuilder]: For program point L3582-1(line 3582) no Hoare annotation was computed. [2023-11-12 00:55:44,112 INFO L899 garLoopResultBuilder]: For program point L3578(lines 3578 3581) no Hoare annotation was computed. [2023-11-12 00:55:44,112 INFO L899 garLoopResultBuilder]: For program point L3574(lines 3574 3577) no Hoare annotation was computed. [2023-11-12 00:55:44,112 INFO L899 garLoopResultBuilder]: For program point pg_writeEXIT(lines 3563 3636) no Hoare annotation was computed. [2023-11-12 00:55:44,112 INFO L899 garLoopResultBuilder]: For program point L3599(lines 3599 3611) no Hoare annotation was computed. [2023-11-12 00:55:44,112 INFO L902 garLoopResultBuilder]: At program point L3628(lines 3628 3629) the Hoare annotation is: true [2023-11-12 00:55:44,113 INFO L899 garLoopResultBuilder]: For program point L3595(lines 3595 3598) no Hoare annotation was computed. [2023-11-12 00:55:44,113 INFO L899 garLoopResultBuilder]: For program point L3628-1(lines 3628 3629) no Hoare annotation was computed. [2023-11-12 00:55:44,114 INFO L899 garLoopResultBuilder]: For program point L3591(lines 3591 3594) no Hoare annotation was computed. [2023-11-12 00:55:44,114 INFO L899 garLoopResultBuilder]: For program point L3587(lines 3587 3590) no Hoare annotation was computed. [2023-11-12 00:55:44,114 INFO L899 garLoopResultBuilder]: For program point pg_writeFINAL(lines 3563 3636) no Hoare annotation was computed. [2023-11-12 00:55:44,116 INFO L899 garLoopResultBuilder]: For program point L3583(lines 3583 3586) no Hoare annotation was computed. [2023-11-12 00:55:44,116 INFO L899 garLoopResultBuilder]: For program point L3612(lines 3612 3615) no Hoare annotation was computed. [2023-11-12 00:55:44,117 INFO L902 garLoopResultBuilder]: At program point L3604(line 3604) the Hoare annotation is: true [2023-11-12 00:55:44,117 INFO L899 garLoopResultBuilder]: For program point L3604-1(line 3604) no Hoare annotation was computed. [2023-11-12 00:55:44,117 INFO L899 garLoopResultBuilder]: For program point L3600(lines 3600 3603) no Hoare annotation was computed. [2023-11-12 00:55:44,117 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3563 3636) the Hoare annotation is: true [2023-11-12 00:55:44,117 INFO L902 garLoopResultBuilder]: At program point L3618(line 3618) the Hoare annotation is: true [2023-11-12 00:55:44,117 INFO L899 garLoopResultBuilder]: For program point L3618-1(line 3618) no Hoare annotation was computed. [2023-11-12 00:55:44,118 INFO L899 garLoopResultBuilder]: For program point L3619(lines 3619 3626) no Hoare annotation was computed. [2023-11-12 00:55:44,118 INFO L899 garLoopResultBuilder]: For program point pi_connectEXIT(lines 4549 4551) no Hoare annotation was computed. [2023-11-12 00:55:44,118 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4549 4551) the Hoare annotation is: true [2023-11-12 00:55:44,118 INFO L899 garLoopResultBuilder]: For program point L3169-1(line 3169) no Hoare annotation was computed. [2023-11-12 00:55:44,118 INFO L902 garLoopResultBuilder]: At program point L3169(line 3169) the Hoare annotation is: true [2023-11-12 00:55:44,118 INFO L899 garLoopResultBuilder]: For program point L3161-1(line 3161) no Hoare annotation was computed. [2023-11-12 00:55:44,119 INFO L902 garLoopResultBuilder]: At program point L3161(line 3161) the Hoare annotation is: true [2023-11-12 00:55:44,119 INFO L899 garLoopResultBuilder]: For program point pg_commandEXIT(lines 3138 3190) no Hoare annotation was computed. [2023-11-12 00:55:44,119 INFO L899 garLoopResultBuilder]: For program point L3157(lines 3157 3160) no Hoare annotation was computed. [2023-11-12 00:55:44,119 INFO L902 garLoopResultBuilder]: At program point L3153-1(line 3153) the Hoare annotation is: true [2023-11-12 00:55:44,119 INFO L902 garLoopResultBuilder]: At program point L3153(line 3153) the Hoare annotation is: true [2023-11-12 00:55:44,119 INFO L899 garLoopResultBuilder]: For program point fail(lines 3144 3189) no Hoare annotation was computed. [2023-11-12 00:55:44,120 INFO L899 garLoopResultBuilder]: For program point L3182(line 3182) no Hoare annotation was computed. [2023-11-12 00:55:44,120 INFO L899 garLoopResultBuilder]: For program point L3149(lines 3149 3152) no Hoare annotation was computed. [2023-11-12 00:55:44,120 INFO L899 garLoopResultBuilder]: For program point L3145-1(line 3145) no Hoare annotation was computed. [2023-11-12 00:55:44,120 INFO L902 garLoopResultBuilder]: At program point L3145(line 3145) the Hoare annotation is: true [2023-11-12 00:55:44,120 INFO L902 garLoopResultBuilder]: At program point ldv_22796(lines 3168 3183) the Hoare annotation is: true [2023-11-12 00:55:44,120 INFO L899 garLoopResultBuilder]: For program point L3162(lines 3162 3166) no Hoare annotation was computed. [2023-11-12 00:55:44,121 INFO L902 garLoopResultBuilder]: At program point L3154(line 3154) the Hoare annotation is: true [2023-11-12 00:55:44,121 INFO L899 garLoopResultBuilder]: For program point L3187-1(line 3187) no Hoare annotation was computed. [2023-11-12 00:55:44,121 INFO L902 garLoopResultBuilder]: At program point L3187(line 3187) the Hoare annotation is: true [2023-11-12 00:55:44,121 INFO L902 garLoopResultBuilder]: At program point L3146(line 3146) the Hoare annotation is: true [2023-11-12 00:55:44,121 INFO L899 garLoopResultBuilder]: For program point L3146-1(line 3146) no Hoare annotation was computed. [2023-11-12 00:55:44,121 INFO L899 garLoopResultBuilder]: For program point L3167-1(line 3167) no Hoare annotation was computed. [2023-11-12 00:55:44,121 INFO L902 garLoopResultBuilder]: At program point L3167(line 3167) the Hoare annotation is: true [2023-11-12 00:55:44,122 INFO L899 garLoopResultBuilder]: For program point L3163-1(line 3163) no Hoare annotation was computed. [2023-11-12 00:55:44,122 INFO L902 garLoopResultBuilder]: At program point L3163(line 3163) the Hoare annotation is: true [2023-11-12 00:55:44,122 INFO L902 garLoopResultBuilder]: At program point L3155(line 3155) the Hoare annotation is: true [2023-11-12 00:55:44,122 INFO L902 garLoopResultBuilder]: At program point L3147-1(line 3147) the Hoare annotation is: true [2023-11-12 00:55:44,122 INFO L902 garLoopResultBuilder]: At program point L3147(line 3147) the Hoare annotation is: true [2023-11-12 00:55:44,122 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3138 3190) the Hoare annotation is: true [2023-11-12 00:55:44,123 INFO L899 garLoopResultBuilder]: For program point $Ultimate##10(lines 3176 3180) no Hoare annotation was computed. [2023-11-12 00:55:44,123 INFO L899 garLoopResultBuilder]: For program point L3168(lines 3168 3184) no Hoare annotation was computed. [2023-11-12 00:55:44,123 INFO L899 garLoopResultBuilder]: For program point L3168-2(lines 3168 3184) no Hoare annotation was computed. [2023-11-12 00:55:44,123 INFO L899 garLoopResultBuilder]: For program point pg_commandFINAL(lines 3138 3190) no Hoare annotation was computed. [2023-11-12 00:55:44,123 INFO L899 garLoopResultBuilder]: For program point L3156(line 3156) no Hoare annotation was computed. [2023-11-12 00:55:44,123 INFO L899 garLoopResultBuilder]: For program point L3148(line 3148) no Hoare annotation was computed. [2023-11-12 00:55:44,124 INFO L899 garLoopResultBuilder]: For program point L3173-1(line 3173) no Hoare annotation was computed. [2023-11-12 00:55:44,124 INFO L902 garLoopResultBuilder]: At program point L3173(line 3173) the Hoare annotation is: true [2023-11-12 00:55:44,124 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4048 4053) the Hoare annotation is: true [2023-11-12 00:55:44,124 INFO L899 garLoopResultBuilder]: For program point ldv__builtin_expectEXIT(lines 4048 4053) no Hoare annotation was computed. [2023-11-12 00:55:44,124 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2805 2811) the Hoare annotation is: true [2023-11-12 00:55:44,124 INFO L899 garLoopResultBuilder]: For program point clear_bitEXIT(lines 2805 2811) no Hoare annotation was computed. [2023-11-12 00:55:44,124 INFO L899 garLoopResultBuilder]: For program point read_regEXIT(lines 3056 3062) no Hoare annotation was computed. [2023-11-12 00:55:44,125 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3056 3062) the Hoare annotation is: true [2023-11-12 00:55:44,125 INFO L899 garLoopResultBuilder]: For program point L3059-1(line 3059) no Hoare annotation was computed. [2023-11-12 00:55:44,125 INFO L902 garLoopResultBuilder]: At program point L3059(line 3059) the Hoare annotation is: true [2023-11-12 00:55:44,125 INFO L899 garLoopResultBuilder]: For program point L3264(line 3264) no Hoare annotation was computed. [2023-11-12 00:55:44,125 INFO L902 garLoopResultBuilder]: At program point L3260(line 3260) the Hoare annotation is: true [2023-11-12 00:55:44,125 INFO L902 garLoopResultBuilder]: At program point L3322(line 3322) the Hoare annotation is: true [2023-11-12 00:55:44,126 INFO L899 garLoopResultBuilder]: For program point L3260-1(line 3260) no Hoare annotation was computed. [2023-11-12 00:55:44,126 INFO L899 garLoopResultBuilder]: For program point L3322-1(line 3322) no Hoare annotation was computed. [2023-11-12 00:55:44,126 INFO L902 garLoopResultBuilder]: At program point L3306(line 3306) the Hoare annotation is: true [2023-11-12 00:55:44,126 INFO L899 garLoopResultBuilder]: For program point L3273-1(line 3273) no Hoare annotation was computed. [2023-11-12 00:55:44,126 INFO L902 garLoopResultBuilder]: At program point L3273(line 3273) the Hoare annotation is: true [2023-11-12 00:55:44,126 INFO L899 garLoopResultBuilder]: For program point L3306-1(line 3306) no Hoare annotation was computed. [2023-11-12 00:55:44,127 INFO L902 garLoopResultBuilder]: At program point L3302(line 3302) the Hoare annotation is: true [2023-11-12 00:55:44,127 INFO L899 garLoopResultBuilder]: For program point L3302-1(line 3302) no Hoare annotation was computed. [2023-11-12 00:55:44,127 INFO L899 garLoopResultBuilder]: For program point L3261-1(line 3261) no Hoare annotation was computed. [2023-11-12 00:55:44,127 INFO L902 garLoopResultBuilder]: At program point L3261(line 3261) the Hoare annotation is: true [2023-11-12 00:55:44,127 INFO L899 garLoopResultBuilder]: For program point L3286(line 3286) no Hoare annotation was computed. [2023-11-12 00:55:44,127 INFO L899 garLoopResultBuilder]: For program point L3319(line 3319) no Hoare annotation was computed. [2023-11-12 00:55:44,127 INFO L902 garLoopResultBuilder]: At program point L3315-1(lines 3315 3318) the Hoare annotation is: true [2023-11-12 00:55:44,128 INFO L899 garLoopResultBuilder]: For program point $Ultimate##21(lines 3315 3318) no Hoare annotation was computed. [2023-11-12 00:55:44,128 INFO L899 garLoopResultBuilder]: For program point L3274-4(lines 3274 3278) no Hoare annotation was computed. [2023-11-12 00:55:44,128 INFO L902 garLoopResultBuilder]: At program point ldv_22820(lines 3254 3324) the Hoare annotation is: true [2023-11-12 00:55:44,128 INFO L902 garLoopResultBuilder]: At program point L3262(line 3262) the Hoare annotation is: true [2023-11-12 00:55:44,128 INFO L902 garLoopResultBuilder]: At program point L3262-1(line 3262) the Hoare annotation is: true [2023-11-12 00:55:44,128 INFO L902 garLoopResultBuilder]: At program point L3316(line 3316) the Hoare annotation is: true [2023-11-12 00:55:44,129 INFO L899 garLoopResultBuilder]: For program point L3316-1(line 3316) no Hoare annotation was computed. [2023-11-12 00:55:44,129 INFO L902 garLoopResultBuilder]: At program point ldv_22817(lines 3254 3324) the Hoare annotation is: true [2023-11-12 00:55:44,129 INFO L899 garLoopResultBuilder]: For program point ldv_22819(lines 3254 3324) no Hoare annotation was computed. [2023-11-12 00:55:44,129 INFO L899 garLoopResultBuilder]: For program point $Ultimate##19(lines 3309 3313) no Hoare annotation was computed. [2023-11-12 00:55:44,130 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3244 3325) the Hoare annotation is: true [2023-11-12 00:55:44,130 INFO L899 garLoopResultBuilder]: For program point $Ultimate##12(lines 3289 3293) no Hoare annotation was computed. [2023-11-12 00:55:44,130 INFO L899 garLoopResultBuilder]: For program point pg_resetEXIT(lines 3244 3325) no Hoare annotation was computed. [2023-11-12 00:55:44,130 INFO L899 garLoopResultBuilder]: For program point L3296-2(lines 3254 3324) no Hoare annotation was computed. [2023-11-12 00:55:44,130 INFO L902 garLoopResultBuilder]: At program point L3263(line 3263) the Hoare annotation is: true [2023-11-12 00:55:44,130 INFO L899 garLoopResultBuilder]: For program point L3272(lines 3272 3281) no Hoare annotation was computed. [2023-11-12 00:55:44,130 INFO L899 garLoopResultBuilder]: For program point L3268(lines 3254 3324) no Hoare annotation was computed. [2023-11-12 00:55:44,131 INFO L899 garLoopResultBuilder]: For program point L3301-1(lines 3301 3321) no Hoare annotation was computed. [2023-11-12 00:55:44,131 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 2921 2930) no Hoare annotation was computed. [2023-11-12 00:55:44,131 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2921 2930) the Hoare annotation is: true [2023-11-12 00:55:44,131 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4535 4537) the Hoare annotation is: true [2023-11-12 00:55:44,131 INFO L899 garLoopResultBuilder]: For program point mutex_lockEXIT(lines 4535 4537) no Hoare annotation was computed. [2023-11-12 00:55:44,131 INFO L899 garLoopResultBuilder]: For program point _copy_from_userEXIT(lines 4516 4518) no Hoare annotation was computed. [2023-11-12 00:55:44,132 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4516 4518) the Hoare annotation is: true [2023-11-12 00:55:44,132 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)) [2023-11-12 00:55:44,132 INFO L899 garLoopResultBuilder]: For program point L3537(line 3537) no Hoare annotation was computed. [2023-11-12 00:55:44,132 INFO L899 garLoopResultBuilder]: For program point L4462(lines 4462 4465) no Hoare annotation was computed. [2023-11-12 00:55:44,133 INFO L899 garLoopResultBuilder]: For program point L3471(lines 3471 3474) no Hoare annotation was computed. [2023-11-12 00:55:44,134 INFO L899 garLoopResultBuilder]: For program point L3504-1(line 3504) no Hoare annotation was computed. [2023-11-12 00:55:44,135 INFO L899 garLoopResultBuilder]: For program point L3901(line 3901) no Hoare annotation was computed. [2023-11-12 00:55:44,135 INFO L899 garLoopResultBuilder]: For program point L3902(lines 3902 3933) no Hoare annotation was computed. [2023-11-12 00:55:44,135 INFO L899 garLoopResultBuilder]: For program point L3869(line 3869) no Hoare annotation was computed. [2023-11-12 00:55:44,135 INFO L899 garLoopResultBuilder]: For program point pg_read_returnLabel#1(lines 3637 3696) no Hoare annotation was computed. [2023-11-12 00:55:44,135 INFO L899 garLoopResultBuilder]: For program point L3803(lines 3803 3806) no Hoare annotation was computed. [2023-11-12 00:55:44,135 INFO L899 garLoopResultBuilder]: For program point L3803-2(lines 3803 3806) no Hoare annotation was computed. [2023-11-12 00:55:44,136 INFO L899 garLoopResultBuilder]: For program point L4464-1(lines 4462 4465) no Hoare annotation was computed. [2023-11-12 00:55:44,136 INFO L895 garLoopResultBuilder]: At program point L4497(line 4497) the Hoare annotation is: false [2023-11-12 00:55:44,136 INFO L895 garLoopResultBuilder]: At program point L4464(line 4464) the Hoare annotation is: false [2023-11-12 00:55:44,136 INFO L899 garLoopResultBuilder]: For program point L4497-1(lines 4480 4501) no Hoare annotation was computed. [2023-11-12 00:55:44,136 INFO L899 garLoopResultBuilder]: For program point L3870(lines 3870 3874) no Hoare annotation was computed. [2023-11-12 00:55:44,138 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)) [2023-11-12 00:55:44,138 INFO L899 garLoopResultBuilder]: For program point L3804-1(line 3804) no Hoare annotation was computed. [2023-11-12 00:55:44,138 INFO L899 garLoopResultBuilder]: For program point L3771(lines 3707 3774) no Hoare annotation was computed. [2023-11-12 00:55:44,139 INFO L899 garLoopResultBuilder]: For program point L3540(lines 3540 3546) no Hoare annotation was computed. [2023-11-12 00:55:44,139 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)) [2023-11-12 00:55:44,140 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)) [2023-11-12 00:55:44,140 INFO L899 garLoopResultBuilder]: For program point L3475-1(lines 3475 3476) no Hoare annotation was computed. [2023-11-12 00:55:44,140 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)) [2023-11-12 00:55:44,141 INFO L899 garLoopResultBuilder]: For program point L3905(line 3905) no Hoare annotation was computed. [2023-11-12 00:55:44,141 INFO L899 garLoopResultBuilder]: For program point L3542(line 3542) no Hoare annotation was computed. [2023-11-12 00:55:44,141 INFO L899 garLoopResultBuilder]: For program point L3906(lines 3906 3911) no Hoare annotation was computed. [2023-11-12 00:55:44,141 INFO L899 garLoopResultBuilder]: For program point L3708(lines 3708 3712) no Hoare annotation was computed. [2023-11-12 00:55:44,141 INFO L899 garLoopResultBuilder]: For program point L3477(lines 3477 3486) no Hoare annotation was computed. [2023-11-12 00:55:44,141 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)) [2023-11-12 00:55:44,142 INFO L899 garLoopResultBuilder]: For program point L3478-1(line 3478) no Hoare annotation was computed. [2023-11-12 00:55:44,143 INFO L899 garLoopResultBuilder]: For program point L3842(lines 3837 3943) no Hoare annotation was computed. [2023-11-12 00:55:44,145 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)) [2023-11-12 00:55:44,146 INFO L899 garLoopResultBuilder]: For program point L4503-1(line 4503) no Hoare annotation was computed. [2023-11-12 00:55:44,146 INFO L899 garLoopResultBuilder]: For program point L3479(lines 3479 3484) no Hoare annotation was computed. [2023-11-12 00:55:44,146 INFO L899 garLoopResultBuilder]: For program point L4404(lines 4404 4407) no Hoare annotation was computed. [2023-11-12 00:55:44,147 INFO L899 garLoopResultBuilder]: For program point L3876(line 3876) no Hoare annotation was computed. [2023-11-12 00:55:44,147 INFO L899 garLoopResultBuilder]: For program point L4009-1(lines 4005 4012) no Hoare annotation was computed. [2023-11-12 00:55:44,147 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)) [2023-11-12 00:55:44,148 INFO L895 garLoopResultBuilder]: At program point L4406(line 4406) the Hoare annotation is: false [2023-11-12 00:55:44,148 INFO L899 garLoopResultBuilder]: For program point L4406-1(lines 4404 4407) no Hoare annotation was computed. [2023-11-12 00:55:44,148 INFO L899 garLoopResultBuilder]: For program point L3845(line 3845) no Hoare annotation was computed. [2023-11-12 00:55:44,148 INFO L899 garLoopResultBuilder]: For program point L3746(lines 3746 3751) no Hoare annotation was computed. [2023-11-12 00:55:44,148 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)) [2023-11-12 00:55:44,148 INFO L899 garLoopResultBuilder]: For program point L3680-1(line 3680) no Hoare annotation was computed. [2023-11-12 00:55:44,149 INFO L899 garLoopResultBuilder]: For program point L3548(lines 3515 3551) no Hoare annotation was computed. [2023-11-12 00:55:44,149 INFO L899 garLoopResultBuilder]: For program point main_ldv_final#1(lines 3837 3943) no Hoare annotation was computed. [2023-11-12 00:55:44,149 INFO L899 garLoopResultBuilder]: For program point L3846(lines 3846 3899) no Hoare annotation was computed. [2023-11-12 00:55:44,149 INFO L899 garLoopResultBuilder]: For program point L3648(lines 3648 3651) no Hoare annotation was computed. [2023-11-12 00:55:44,149 INFO L899 garLoopResultBuilder]: For program point L3681(lines 3681 3684) no Hoare annotation was computed. [2023-11-12 00:55:44,149 INFO L899 garLoopResultBuilder]: For program point L3483-1(line 3483) no Hoare annotation was computed. [2023-11-12 00:55:44,150 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)) [2023-11-12 00:55:44,150 INFO L899 garLoopResultBuilder]: For program point L3913(line 3913) no Hoare annotation was computed. [2023-11-12 00:55:44,150 INFO L899 garLoopResultBuilder]: For program point L3715(lines 3715 3719) no Hoare annotation was computed. [2023-11-12 00:55:44,150 INFO L899 garLoopResultBuilder]: For program point L3914(lines 3914 3926) no Hoare annotation was computed. [2023-11-12 00:55:44,150 INFO L899 garLoopResultBuilder]: For program point L3849(line 3849) no Hoare annotation was computed. [2023-11-12 00:55:44,150 INFO L899 garLoopResultBuilder]: For program point L3453-1(line 3453) no Hoare annotation was computed. [2023-11-12 00:55:44,151 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)) [2023-11-12 00:55:44,151 INFO L899 garLoopResultBuilder]: For program point L3850(lines 3850 3854) no Hoare annotation was computed. [2023-11-12 00:55:44,151 INFO L899 garLoopResultBuilder]: For program point L3916-2(lines 3914 3925) no Hoare annotation was computed. [2023-11-12 00:55:44,151 INFO L899 garLoopResultBuilder]: For program point L3883(line 3883) no Hoare annotation was computed. [2023-11-12 00:55:44,151 INFO L899 garLoopResultBuilder]: For program point L3850-2(lines 3848 3896) no Hoare annotation was computed. [2023-11-12 00:55:44,151 INFO L899 garLoopResultBuilder]: For program point L3652(lines 3652 3655) no Hoare annotation was computed. [2023-11-12 00:55:44,151 INFO L899 garLoopResultBuilder]: For program point L3685(lines 3685 3693) no Hoare annotation was computed. [2023-11-12 00:55:44,152 INFO L899 garLoopResultBuilder]: For program point L3685-2(lines 3685 3693) no Hoare annotation was computed. [2023-11-12 00:55:44,152 INFO L899 garLoopResultBuilder]: For program point L3487(lines 3466 3497) no Hoare annotation was computed. [2023-11-12 00:55:44,152 INFO L899 garLoopResultBuilder]: For program point L3884(lines 3884 3892) no Hoare annotation was computed. [2023-11-12 00:55:44,152 INFO L899 garLoopResultBuilder]: For program point L3851-1(line 3851) no Hoare annotation was computed. [2023-11-12 00:55:44,152 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)) [2023-11-12 00:55:44,152 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)) [2023-11-12 00:55:44,153 INFO L899 garLoopResultBuilder]: For program point L3686-1(lines 3686 3687) no Hoare annotation was computed. [2023-11-12 00:55:44,153 INFO L899 garLoopResultBuilder]: For program point L3521-2(lines 3521 3525) no Hoare annotation was computed. [2023-11-12 00:55:44,153 INFO L899 garLoopResultBuilder]: For program point L3455(lines 3455 3499) no Hoare annotation was computed. [2023-11-12 00:55:44,153 INFO L899 garLoopResultBuilder]: For program point L4017-1(lines 4013 4020) no Hoare annotation was computed. [2023-11-12 00:55:44,153 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)) [2023-11-12 00:55:44,153 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)) [2023-11-12 00:55:44,154 INFO L899 garLoopResultBuilder]: For program point L3456-1(lines 3456 3457) no Hoare annotation was computed. [2023-11-12 00:55:44,154 INFO L899 garLoopResultBuilder]: For program point L3688(lines 3688 3691) no Hoare annotation was computed. [2023-11-12 00:55:44,154 INFO L899 garLoopResultBuilder]: For program point L3721(lines 3721 3741) no Hoare annotation was computed. [2023-11-12 00:55:44,154 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)) [2023-11-12 00:55:44,154 INFO L899 garLoopResultBuilder]: For program point L3028-1(line 3028) no Hoare annotation was computed. [2023-11-12 00:55:44,155 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)) [2023-11-12 00:55:44,155 INFO L899 garLoopResultBuilder]: For program point L3722-1(line 3722) no Hoare annotation was computed. [2023-11-12 00:55:44,155 INFO L899 garLoopResultBuilder]: For program point L3458(lines 3458 3497) no Hoare annotation was computed. [2023-11-12 00:55:44,155 INFO L899 garLoopResultBuilder]: For program point L3756(lines 3756 3759) no Hoare annotation was computed. [2023-11-12 00:55:44,155 INFO L899 garLoopResultBuilder]: For program point L3756-2(lines 3756 3759) no Hoare annotation was computed. [2023-11-12 00:55:44,155 INFO L899 garLoopResultBuilder]: For program point L3657-1(line 3657) no Hoare annotation was computed. [2023-11-12 00:55:44,156 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)) [2023-11-12 00:55:44,156 INFO L899 garLoopResultBuilder]: For program point L4483(lines 4483 4486) no Hoare annotation was computed. [2023-11-12 00:55:44,156 INFO L899 garLoopResultBuilder]: For program point L3459-1(line 3459) no Hoare annotation was computed. [2023-11-12 00:55:44,156 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)) [2023-11-12 00:55:44,156 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)) [2023-11-12 00:55:44,156 INFO L899 garLoopResultBuilder]: For program point L3856-1(line 3856) no Hoare annotation was computed. [2023-11-12 00:55:44,157 INFO L899 garLoopResultBuilder]: For program point L3658(lines 3658 3664) no Hoare annotation was computed. [2023-11-12 00:55:44,157 INFO L899 garLoopResultBuilder]: For program point L3658-2(lines 3658 3664) no Hoare annotation was computed. [2023-11-12 00:55:44,157 INFO L899 garLoopResultBuilder]: For program point L3559-1(line 3559) no Hoare annotation was computed. [2023-11-12 00:55:44,157 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)) [2023-11-12 00:55:44,157 INFO L899 garLoopResultBuilder]: For program point L3460(lines 3460 3465) no Hoare annotation was computed. [2023-11-12 00:55:44,157 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:55:44,157 INFO L899 garLoopResultBuilder]: For program point L3659-4(lines 3659 3662) no Hoare annotation was computed. [2023-11-12 00:55:44,158 INFO L899 garLoopResultBuilder]: For program point L3527(lines 3527 3531) no Hoare annotation was computed. [2023-11-12 00:55:44,158 INFO L895 garLoopResultBuilder]: At program point L4485(line 4485) the Hoare annotation is: false [2023-11-12 00:55:44,158 INFO L899 garLoopResultBuilder]: For program point L4485-1(lines 4482 4500) no Hoare annotation was computed. [2023-11-12 00:55:44,158 INFO L899 garLoopResultBuilder]: For program point L2933-1(line 2933) no Hoare annotation was computed. [2023-11-12 00:55:44,158 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)) [2023-11-12 00:55:44,158 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)) [2023-11-12 00:55:44,159 INFO L899 garLoopResultBuilder]: For program point L2835-1(line 2835) no Hoare annotation was computed. [2023-11-12 00:55:44,159 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)) [2023-11-12 00:55:44,159 INFO L899 garLoopResultBuilder]: For program point L3727(lines 3727 3730) no Hoare annotation was computed. [2023-11-12 00:55:44,159 INFO L899 garLoopResultBuilder]: For program point L3727-2(lines 3727 3730) no Hoare annotation was computed. [2023-11-12 00:55:44,159 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)) [2023-11-12 00:55:44,160 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)) [2023-11-12 00:55:44,160 INFO L899 garLoopResultBuilder]: For program point L3728-1(line 3728) no Hoare annotation was computed. [2023-11-12 00:55:44,160 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)) [2023-11-12 00:55:44,160 INFO L899 garLoopResultBuilder]: For program point $Ultimate##142(lines 3491 3495) no Hoare annotation was computed. [2023-11-12 00:55:44,160 INFO L899 garLoopResultBuilder]: For program point L3464-1(line 3464) no Hoare annotation was computed. [2023-11-12 00:55:44,160 INFO L899 garLoopResultBuilder]: For program point $Ultimate##145(lines 3500 3503) no Hoare annotation was computed. [2023-11-12 00:55:44,160 INFO L899 garLoopResultBuilder]: For program point L3861(line 3861) no Hoare annotation was computed. [2023-11-12 00:55:44,161 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:55:44,161 INFO L899 garLoopResultBuilder]: For program point $Ultimate##154(lines 3733 3737) no Hoare annotation was computed. [2023-11-12 00:55:44,161 INFO L895 garLoopResultBuilder]: At program point L4489(line 4489) the Hoare annotation is: false [2023-11-12 00:55:44,161 INFO L899 garLoopResultBuilder]: For program point L4489-1(lines 4482 4500) no Hoare annotation was computed. [2023-11-12 00:55:44,161 INFO L899 garLoopResultBuilder]: For program point L3862(lines 3862 3867) no Hoare annotation was computed. [2023-11-12 00:55:44,161 INFO L899 garLoopResultBuilder]: For program point L3532(lines 3532 3536) no Hoare annotation was computed. [2023-11-12 00:55:44,162 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)) [2023-11-12 00:55:44,162 INFO L899 garLoopResultBuilder]: For program point $Ultimate##167(lines 3762 3766) no Hoare annotation was computed. [2023-11-12 00:55:44,162 INFO L899 garLoopResultBuilder]: For program point L3533-1(line 3533) no Hoare annotation was computed. [2023-11-12 00:55:44,162 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)) [2023-11-12 00:55:44,162 INFO L899 garLoopResultBuilder]: For program point pg_detect_returnLabel#1(lines 3442 3507) no Hoare annotation was computed. [2023-11-12 00:55:44,162 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)) [2023-11-12 00:55:44,163 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)) [2023-11-12 00:55:44,163 INFO L899 garLoopResultBuilder]: For program point L3798-1(line 3798) no Hoare annotation was computed. [2023-11-12 00:55:44,163 INFO L899 garLoopResultBuilder]: For program point $Ultimate##106(lines 3791 3795) no Hoare annotation was computed. [2023-11-12 00:55:44,163 INFO L895 garLoopResultBuilder]: At program point L4493(line 4493) the Hoare annotation is: false [2023-11-12 00:55:44,163 INFO L899 garLoopResultBuilder]: For program point L4493-1(lines 4482 4500) no Hoare annotation was computed. [2023-11-12 00:55:44,163 INFO L899 garLoopResultBuilder]: For program point $Ultimate##111(lines 3809 3813) no Hoare annotation was computed. [2023-11-12 00:55:44,164 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)) [2023-11-12 00:55:44,164 INFO L899 garLoopResultBuilder]: For program point L4527-1(line 4527) no Hoare annotation was computed. [2023-11-12 00:55:44,164 INFO L899 garLoopResultBuilder]: For program point $Ultimate##125(lines 3040 3044) no Hoare annotation was computed. [2023-11-12 00:55:44,164 INFO L899 garLoopResultBuilder]: For program point xsEXIT(lines 3326 3364) no Hoare annotation was computed. [2023-11-12 00:55:44,165 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3326 3364) the Hoare annotation is: true [2023-11-12 00:55:44,165 INFO L899 garLoopResultBuilder]: For program point $Ultimate##5(lines 3351 3355) no Hoare annotation was computed. [2023-11-12 00:55:44,165 INFO L902 garLoopResultBuilder]: At program point L3392(line 3392) the Hoare annotation is: true [2023-11-12 00:55:44,165 INFO L899 garLoopResultBuilder]: For program point L3393(lines 3393 3396) no Hoare annotation was computed. [2023-11-12 00:55:44,165 INFO L899 garLoopResultBuilder]: For program point L3392-1(line 3392) no Hoare annotation was computed. [2023-11-12 00:55:44,165 INFO L899 garLoopResultBuilder]: For program point L3388(lines 3388 3391) no Hoare annotation was computed. [2023-11-12 00:55:44,166 INFO L899 garLoopResultBuilder]: For program point L3387-1(line 3387) no Hoare annotation was computed. [2023-11-12 00:55:44,166 INFO L902 garLoopResultBuilder]: At program point L3387(line 3387) the Hoare annotation is: true [2023-11-12 00:55:44,166 INFO L899 garLoopResultBuilder]: For program point pg_identifyEXIT(lines 3365 3406) no Hoare annotation was computed. [2023-11-12 00:55:44,166 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3365 3406) the Hoare annotation is: true [2023-11-12 00:55:44,166 INFO L902 garLoopResultBuilder]: At program point L3400(lines 3400 3401) the Hoare annotation is: true [2023-11-12 00:55:44,166 INFO L902 garLoopResultBuilder]: At program point L3398(line 3398) the Hoare annotation is: true [2023-11-12 00:55:44,166 INFO L899 garLoopResultBuilder]: For program point L3399(line 3399) no Hoare annotation was computed. [2023-11-12 00:55:44,167 INFO L899 garLoopResultBuilder]: For program point L3400-1(lines 3400 3401) no Hoare annotation was computed. [2023-11-12 00:55:44,167 INFO L899 garLoopResultBuilder]: For program point pg_identifyFINAL(lines 3365 3406) no Hoare annotation was computed. [2023-11-12 00:55:44,167 INFO L899 garLoopResultBuilder]: For program point L3397(lines 3397 3403) no Hoare annotation was computed. [2023-11-12 00:55:44,167 INFO L902 garLoopResultBuilder]: At program point L3398-1(line 3398) the Hoare annotation is: true [2023-11-12 00:55:44,167 INFO L899 garLoopResultBuilder]: For program point L3397-2(lines 3397 3403) no Hoare annotation was computed. [2023-11-12 00:55:44,167 INFO L899 garLoopResultBuilder]: For program point pi_write_blockEXIT(lines 4569 4571) no Hoare annotation was computed. [2023-11-12 00:55:44,168 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4569 4571) the Hoare annotation is: true [2023-11-12 00:55:44,172 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:55:44,175 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:55:44,191 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_mutex_of_device~0 [2023-11-12 00:55:44,192 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~disable~0 [2023-11-12 00:55:44,192 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_lock~0 [2023-11-12 00:55:44,192 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_pg_mutex~0 [2023-11-12 00:55:44,192 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 [2023-11-12 00:55:44,193 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_mutex_of_device~0 [2023-11-12 00:55:44,193 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~disable~0 [2023-11-12 00:55:44,193 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_lock~0 [2023-11-12 00:55:44,193 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_pg_mutex~0 [2023-11-12 00:55:44,194 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 [2023-11-12 00:55:44,194 ERROR L464 ceAbstractionStarter]: Failed to backtranslate (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)) [2023-11-12 00:55:44,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:55:44 BoogieIcfgContainer [2023-11-12 00:55:44,196 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:55:44,196 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:55:44,196 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:55:44,197 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:55:44,197 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:29" (3/4) ... [2023-11-12 00:55:44,199 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:55:44,202 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_from_user [2023-11-12 00:55:44,203 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_release [2023-11-12 00:55:44,203 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_init [2023-11-12 00:55:44,203 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure write_reg [2023-11-12 00:55:44,203 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_sleep [2023-11-12 00:55:44,203 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_read_regr [2023-11-12 00:55:44,203 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure might_fault [2023-11-12 00:55:44,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2023-11-12 00:55:44,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_disconnect [2023-11-12 00:55:44,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_probe [2023-11-12 00:55:44,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure status_reg [2023-11-12 00:55:44,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_completion [2023-11-12 00:55:44,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_unregister_chrdev_11 [2023-11-12 00:55:44,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure DRIVE [2023-11-12 00:55:44,205 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_unlock [2023-11-12 00:55:44,205 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_to_user [2023-11-12 00:55:44,205 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_wait [2023-11-12 00:55:44,205 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2023-11-12 00:55:44,205 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_write [2023-11-12 00:55:44,205 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_connect [2023-11-12 00:55:44,205 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_command [2023-11-12 00:55:44,206 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2023-11-12 00:55:44,206 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure clear_bit [2023-11-12 00:55:44,206 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_reg [2023-11-12 00:55:44,206 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_reset [2023-11-12 00:55:44,206 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2023-11-12 00:55:44,206 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock [2023-11-12 00:55:44,206 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2023-11-12 00:55:44,207 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure xs [2023-11-12 00:55:44,207 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_identify [2023-11-12 00:55:44,207 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_write_block [2023-11-12 00:55:44,259 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 316 nodes and edges [2023-11-12 00:55:44,263 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 117 nodes and edges [2023-11-12 00:55:44,267 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2023-11-12 00:55:44,271 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-12 00:55:44,275 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:55:44,279 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-12 00:55:44,283 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:55:44,554 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:55:44,555 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:55:44,555 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:55:44,556 INFO L158 Benchmark]: Toolchain (without parser) took 20437.62ms. Allocated memory was 127.9MB in the beginning and 400.6MB in the end (delta: 272.6MB). Free memory was 79.8MB in the beginning and 313.5MB in the end (delta: -233.7MB). Peak memory consumption was 250.2MB. Max. memory is 16.1GB. [2023-11-12 00:55:44,556 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:55:44,556 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1425.54ms. Allocated memory was 127.9MB in the beginning and 176.2MB in the end (delta: 48.2MB). Free memory was 79.8MB in the beginning and 95.2MB in the end (delta: -15.4MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2023-11-12 00:55:44,557 INFO L158 Benchmark]: Boogie Procedure Inliner took 144.06ms. Allocated memory is still 176.2MB. Free memory was 95.2MB in the beginning and 86.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 00:55:44,557 INFO L158 Benchmark]: Boogie Preprocessor took 119.88ms. Allocated memory is still 176.2MB. Free memory was 86.8MB in the beginning and 78.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 00:55:44,558 INFO L158 Benchmark]: RCFGBuilder took 3218.08ms. Allocated memory was 176.2MB in the beginning and 262.1MB in the end (delta: 86.0MB). Free memory was 78.4MB in the beginning and 174.0MB in the end (delta: -95.6MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2023-11-12 00:55:44,559 INFO L158 Benchmark]: TraceAbstraction took 15159.73ms. Allocated memory was 262.1MB in the beginning and 400.6MB in the end (delta: 138.4MB). Free memory was 173.0MB in the beginning and 107.0MB in the end (delta: 65.9MB). Peak memory consumption was 206.9MB. Max. memory is 16.1GB. [2023-11-12 00:55:44,559 INFO L158 Benchmark]: Witness Printer took 358.87ms. Allocated memory is still 400.6MB. Free memory was 107.0MB in the beginning and 313.5MB in the end (delta: -206.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:55:44,562 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1425.54ms. Allocated memory was 127.9MB in the beginning and 176.2MB in the end (delta: 48.2MB). Free memory was 79.8MB in the beginning and 95.2MB in the end (delta: -15.4MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 144.06ms. Allocated memory is still 176.2MB. Free memory was 95.2MB in the beginning and 86.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 119.88ms. Allocated memory is still 176.2MB. Free memory was 86.8MB in the beginning and 78.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 3218.08ms. Allocated memory was 176.2MB in the beginning and 262.1MB in the end (delta: 86.0MB). Free memory was 78.4MB in the beginning and 174.0MB in the end (delta: -95.6MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. * TraceAbstraction took 15159.73ms. Allocated memory was 262.1MB in the beginning and 400.6MB in the end (delta: 138.4MB). Free memory was 173.0MB in the beginning and 107.0MB in the end (delta: 65.9MB). Peak memory consumption was 206.9MB. Max. memory is 16.1GB. * Witness Printer took 358.87ms. Allocated memory is still 400.6MB. Free memory was 107.0MB in the beginning and 313.5MB in the end (delta: -206.5MB). Peak memory consumption was 2.1MB. 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 - 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: 15.1s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3437 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3427 mSDsluCounter, 8022 SdHoareTripleChecker+Invalid, 2.8s 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: 0.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 30 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 135 LocationsWithAnnotation, 3639 PreInvPairs, 3687 NumberOfFragments, 678 HoareAnnotationTreeSize, 3639 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 135 FomulaSimplificationsInter, 13183 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 643 NumberOfCodeBlocks, 643 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 625 ConstructedInterpolants, 0 QuantifiedInterpolants, 1011 SizeOfPredicates, 0 NumberOfNonLiveVariables, 6206 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 [2023-11-12 00:55:44,589 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_mutex_of_device~0 [2023-11-12 00:55:44,593 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~disable~0 [2023-11-12 00:55:44,594 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_lock~0 [2023-11-12 00:55:44,594 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_pg_mutex~0 [2023-11-12 00:55:44,594 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 [2023-11-12 00:55:44,594 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_mutex_of_device~0 [2023-11-12 00:55:44,595 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~disable~0 [2023-11-12 00:55:44,595 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_lock~0 [2023-11-12 00:55:44,595 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_pg_mutex~0 [2023-11-12 00:55:44,596 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 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! [2023-11-12 00:55:44,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0eae6a4-bc24-456a-aa7a-9a0021737a06/bin/utaipan-verify-NcY6lQBIFX/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