./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745067c7-2b36-4cec-a214-3124410a7962/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745067c7-2b36-4cec-a214-3124410a7962/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745067c7-2b36-4cec-a214-3124410a7962/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745067c7-2b36-4cec-a214-3124410a7962/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745067c7-2b36-4cec-a214-3124410a7962/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745067c7-2b36-4cec-a214-3124410a7962/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash defe568d3ecd4be058b114d2d7ea2aab8a7b360536dba6f49b11be810e3fc79e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:07:22,447 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:07:22,509 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745067c7-2b36-4cec-a214-3124410a7962/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 19:07:22,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:07:22,514 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:07:22,538 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:07:22,538 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:07:22,539 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:07:22,539 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:07:22,540 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:07:22,540 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:07:22,541 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:07:22,541 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:07:22,542 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:07:22,542 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:07:22,543 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:07:22,543 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:07:22,544 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:07:22,544 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:07:22,545 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:07:22,546 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:07:22,546 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:07:22,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:07:22,548 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:07:22,548 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:07:22,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:07:22,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:07:22,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:07:22,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:07:22,551 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:07:22,551 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:07:22,551 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:07:22,552 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:07:22,552 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:07:22,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:07:22,552 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:07:22,553 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:07:22,553 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:07:22,553 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:07:22,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:07:22,553 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:07:22,554 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:07:22,554 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:07:22,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:07:22,554 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_745067c7-2b36-4cec-a214-3124410a7962/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745067c7-2b36-4cec-a214-3124410a7962/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> defe568d3ecd4be058b114d2d7ea2aab8a7b360536dba6f49b11be810e3fc79e [2023-12-02 19:07:22,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:07:22,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:07:22,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:07:22,778 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:07:22,778 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:07:22,780 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745067c7-2b36-4cec-a214-3124410a7962/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i [2023-12-02 19:07:25,494 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:07:26,029 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:07:26,029 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745067c7-2b36-4cec-a214-3124410a7962/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i [2023-12-02 19:07:26,080 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745067c7-2b36-4cec-a214-3124410a7962/bin/utaipan-verify-nQ1chXbOIh/data/02de431a6/991fe5fd7a7b4122aa9931cdcb50b81c/FLAG07be3cf0d [2023-12-02 19:07:26,092 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745067c7-2b36-4cec-a214-3124410a7962/bin/utaipan-verify-nQ1chXbOIh/data/02de431a6/991fe5fd7a7b4122aa9931cdcb50b81c [2023-12-02 19:07:26,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:07:26,096 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:07:26,097 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:07:26,097 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:07:26,102 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:07:26,103 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:07:26" (1/1) ... [2023-12-02 19:07:26,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20034b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:26, skipping insertion in model container [2023-12-02 19:07:26,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:07:26" (1/1) ... [2023-12-02 19:07:26,317 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:07:29,285 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_745067c7-2b36-4cec-a214-3124410a7962/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i[443384,443397] [2023-12-02 19:07:29,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:07:29,682 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:07:29,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [6001-6002] [2023-12-02 19:07:29,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [6013-6014] [2023-12-02 19:07:29,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [6017-6018] [2023-12-02 19:07:29,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [6021-6022] [2023-12-02 19:07:29,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [6025-6026] [2023-12-02 19:07:30,083 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [11783] [2023-12-02 19:07:30,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [11790] [2023-12-02 19:07:30,217 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_745067c7-2b36-4cec-a214-3124410a7962/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i[443384,443397] [2023-12-02 19:07:30,232 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:07:30,447 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:07:30,447 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:07:30,447 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:07:30,448 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:07:30,448 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:07:30,453 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:07:30,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30 WrapperNode [2023-12-02 19:07:30,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:07:30,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:07:30,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:07:30,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:07:30,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2023-12-02 19:07:30,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2023-12-02 19:07:30,937 INFO L138 Inliner]: procedures = 471, calls = 5995, calls flagged for inlining = 202, calls inlined = 181, statements flattened = 11682 [2023-12-02 19:07:30,938 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:07:30,938 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:07:30,938 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:07:30,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:07:30,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2023-12-02 19:07:30,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2023-12-02 19:07:31,063 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2023-12-02 19:07:31,063 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2023-12-02 19:07:31,306 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2023-12-02 19:07:31,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2023-12-02 19:07:31,375 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2023-12-02 19:07:31,397 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2023-12-02 19:07:31,436 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:07:31,437 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:07:31,437 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:07:31,438 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:07:31,438 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2023-12-02 19:07:31,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:07:31,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745067c7-2b36-4cec-a214-3124410a7962/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:07:31,461 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745067c7-2b36-4cec-a214-3124410a7962/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:07:31,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_745067c7-2b36-4cec-a214-3124410a7962/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:07:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-12-02 19:07:31,544 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-12-02 19:07:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-12-02 19:07:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_do_loop_tuple [2023-12-02 19:07:31,545 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_do_loop_tuple [2023-12-02 19:07:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure prod_id2_show [2023-12-02 19:07:31,546 INFO L138 BoogieDeclarations]: Found implementation of procedure prod_id2_show [2023-12-02 19:07:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-12-02 19:07:31,546 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-12-02 19:07:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_cis_cache [2023-12-02 19:07:31,547 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_cis_cache [2023-12-02 19:07:31,547 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_device_probe [2023-12-02 19:07:31,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_device_probe [2023-12-02 19:07:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 19:07:31,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 19:07:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure device_unlock [2023-12-02 19:07:31,548 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unlock [2023-12-02 19:07:31,549 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-12-02 19:07:31,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-12-02 19:07:31,549 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_load_firmware [2023-12-02 19:07:31,550 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_load_firmware [2023-12-02 19:07:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_get_next_tuple [2023-12-02 19:07:31,550 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_get_next_tuple [2023-12-02 19:07:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure read_cis_cache [2023-12-02 19:07:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure read_cis_cache [2023-12-02 19:07:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-12-02 19:07:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-12-02 19:07:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure add_uevent_var [2023-12-02 19:07:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure add_uevent_var [2023-12-02 19:07:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure remove_cis_cache [2023-12-02 19:07:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_cis_cache [2023-12-02 19:07:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-12-02 19:07:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 19:07:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-12-02 19:07:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 19:07:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-12-02 19:07:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-12-02 19:07:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_requery_callback [2023-12-02 19:07:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_requery_callback [2023-12-02 19:07:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-12-02 19:07:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-12-02 19:07:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-12-02 19:07:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-12-02 19:07:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_validate_mem [2023-12-02 19:07:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_validate_mem [2023-12-02 19:07:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure release_io_space [2023-12-02 19:07:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure release_io_space [2023-12-02 19:07:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_early_resume [2023-12-02 19:07:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_early_resume [2023-12-02 19:07:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure follow_link [2023-12-02 19:07:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure follow_link [2023-12-02 19:07:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 19:07:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-12-02 19:07:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-12-02 19:07:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 19:07:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure prod_id1_show [2023-12-02 19:07:31,558 INFO L138 BoogieDeclarations]: Found implementation of procedure prod_id1_show [2023-12-02 19:07:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-12-02 19:07:31,558 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-12-02 19:07:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 19:07:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_read_cis_mem [2023-12-02 19:07:31,559 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_read_cis_mem [2023-12-02 19:07:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_card_add [2023-12-02 19:07:31,559 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_card_add [2023-12-02 19:07:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure prod_id3_show [2023-12-02 19:07:31,560 INFO L138 BoogieDeclarations]: Found implementation of procedure prod_id3_show [2023-12-02 19:07:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_device_query [2023-12-02 19:07:31,560 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_device_query [2023-12-02 19:07:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure parse_strings [2023-12-02 19:07:31,560 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_strings [2023-12-02 19:07:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 19:07:31,561 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 19:07:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_resume_callback [2023-12-02 19:07:31,561 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_resume_callback [2023-12-02 19:07:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_skt_mutex_of_pcmcia_socket [2023-12-02 19:07:31,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_skt_mutex_of_pcmcia_socket [2023-12-02 19:07:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_put_socket [2023-12-02 19:07:31,562 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_put_socket [2023-12-02 19:07:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-12-02 19:07:31,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-12-02 19:07:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_enable_device [2023-12-02 19:07:31,563 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_enable_device [2023-12-02 19:07:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_setup_isa_irq [2023-12-02 19:07:31,563 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_setup_isa_irq [2023-12-02 19:07:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-12-02 19:07:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-12-02 19:07:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure function_show [2023-12-02 19:07:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure function_show [2023-12-02 19:07:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-12-02 19:07:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-12-02 19:07:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_get_first_tuple [2023-12-02 19:07:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_get_first_tuple [2023-12-02 19:07:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure device_lock [2023-12-02 19:07:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure device_lock [2023-12-02 19:07:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 19:07:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-12-02 19:07:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-12-02 19:07:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_release_dev [2023-12-02 19:07:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_release_dev [2023-12-02 19:07:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_do_loop_config [2023-12-02 19:07:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_do_loop_config [2023-12-02 19:07:31,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:07:31,567 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_card_remove [2023-12-02 19:07:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_card_remove [2023-12-02 19:07:31,567 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_add_socket [2023-12-02 19:07:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_add_socket [2023-12-02 19:07:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-12-02 19:07:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-12-02 19:07:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 19:07:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 19:07:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 19:07:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure release_resource [2023-12-02 19:07:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resource [2023-12-02 19:07:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-12-02 19:07:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-12-02 19:07:31,570 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-12-02 19:07:31,570 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-12-02 19:07:31,570 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_fixup_iowidth [2023-12-02 19:07:31,571 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_fixup_iowidth [2023-12-02 19:07:31,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_221 [2023-12-02 19:07:31,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_221 [2023-12-02 19:07:31,571 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-12-02 19:07:31,571 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-12-02 19:07:31,572 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-12-02 19:07:31,572 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-12-02 19:07:31,572 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-12-02 19:07:31,572 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-12-02 19:07:31,573 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2023-12-02 19:07:31,573 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2023-12-02 19:07:31,573 INFO L130 BoogieDeclarations]: Found specification of procedure set_cis_map [2023-12-02 19:07:31,573 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cis_map [2023-12-02 19:07:31,573 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_device_remove [2023-12-02 19:07:31,573 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_device_remove [2023-12-02 19:07:31,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:07:31,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:07:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ops_mutex_of_pcmcia_socket [2023-12-02 19:07:31,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ops_mutex_of_pcmcia_socket [2023-12-02 19:07:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ops_mutex_of_pcmcia_socket [2023-12-02 19:07:31,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ops_mutex_of_pcmcia_socket [2023-12-02 19:07:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-12-02 19:07:31,580 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-12-02 19:07:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure modalias_show [2023-12-02 19:07:31,581 INFO L138 BoogieDeclarations]: Found implementation of procedure modalias_show [2023-12-02 19:07:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_put_dev [2023-12-02 19:07:31,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_put_dev [2023-12-02 19:07:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 19:07:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 19:07:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 19:07:31,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 19:07:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2023-12-02 19:07:31,588 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2023-12-02 19:07:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_parse_uevents [2023-12-02 19:07:31,588 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_parse_uevents [2023-12-02 19:07:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure pm_state_show [2023-12-02 19:07:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_state_show [2023-12-02 19:07:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_devmatch [2023-12-02 19:07:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_devmatch [2023-12-02 19:07:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-12-02 19:07:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-12-02 19:07:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_get_mac_from_cis [2023-12-02 19:07:31,590 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_get_mac_from_cis [2023-12-02 19:07:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-12-02 19:07:31,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-12-02 19:07:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 19:07:31,590 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 19:07:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 19:07:31,590 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 19:07:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_add [2023-12-02 19:07:31,591 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_add [2023-12-02 19:07:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-12-02 19:07:31,591 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-12-02 19:07:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2023-12-02 19:07:31,591 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2023-12-02 19:07:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_io_space [2023-12-02 19:07:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_io_space [2023-12-02 19:07:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_get_tuple_data [2023-12-02 19:07:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_get_tuple_data [2023-12-02 19:07:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 19:07:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_request_irq [2023-12-02 19:07:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_request_irq [2023-12-02 19:07:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_parse_tuple [2023-12-02 19:07:31,593 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_parse_tuple [2023-12-02 19:07:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-12-02 19:07:31,593 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-12-02 19:07:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-12-02 19:07:31,593 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-12-02 19:07:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 19:07:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2023-12-02 19:07:31,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2023-12-02 19:07:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2023-12-02 19:07:31,594 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2023-12-02 19:07:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_disable_device [2023-12-02 19:07:31,594 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_disable_device [2023-12-02 19:07:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2023-12-02 19:07:31,595 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2023-12-02 19:07:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_skt_mutex_of_pcmcia_socket [2023-12-02 19:07:31,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_skt_mutex_of_pcmcia_socket [2023-12-02 19:07:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2023-12-02 19:07:31,595 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2023-12-02 19:07:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure bus_for_each_dev [2023-12-02 19:07:31,595 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_for_each_dev [2023-12-02 19:07:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 19:07:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure request_resource [2023-12-02 19:07:31,596 INFO L138 BoogieDeclarations]: Found implementation of procedure request_resource [2023-12-02 19:07:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 19:07:31,596 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 19:07:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2023-12-02 19:07:31,596 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2023-12-02 19:07:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_release_configuration [2023-12-02 19:07:31,597 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_release_configuration [2023-12-02 19:07:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-12-02 19:07:31,597 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-12-02 19:07:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-12-02 19:07:31,597 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-12-02 19:07:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_suspend [2023-12-02 19:07:31,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_suspend [2023-12-02 19:07:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_release_window [2023-12-02 19:07:31,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_release_window [2023-12-02 19:07:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_find_mem_region [2023-12-02 19:07:31,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_find_mem_region [2023-12-02 19:07:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_device_add [2023-12-02 19:07:31,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_device_add [2023-12-02 19:07:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2023-12-02 19:07:31,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2023-12-02 19:07:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_pcmcia_dynids [2023-12-02 19:07:31,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_pcmcia_dynids [2023-12-02 19:07:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure runtime_resume [2023-12-02 19:07:31,599 INFO L138 BoogieDeclarations]: Found implementation of procedure runtime_resume [2023-12-02 19:07:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2023-12-02 19:07:31,600 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2023-12-02 19:07:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure verify_cis_cache [2023-12-02 19:07:31,600 INFO L138 BoogieDeclarations]: Found implementation of procedure verify_cis_cache [2023-12-02 19:07:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2023-12-02 19:07:31,600 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2023-12-02 19:07:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_resume [2023-12-02 19:07:31,600 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_resume [2023-12-02 19:07:31,601 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_validate_cis [2023-12-02 19:07:31,601 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_validate_cis [2023-12-02 19:07:31,601 INFO L130 BoogieDeclarations]: Found specification of procedure func_id_show [2023-12-02 19:07:31,601 INFO L138 BoogieDeclarations]: Found implementation of procedure func_id_show [2023-12-02 19:07:31,601 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 19:07:31,601 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 19:07:31,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 19:07:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-12-02 19:07:31,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-12-02 19:07:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_loop_tuple [2023-12-02 19:07:31,602 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_loop_tuple [2023-12-02 19:07:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_loop_tuple [2023-12-02 19:07:31,602 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_loop_tuple [2023-12-02 19:07:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 19:07:31,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 19:07:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_requery [2023-12-02 19:07:31,603 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_requery [2023-12-02 19:07:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_suspend_callback [2023-12-02 19:07:31,603 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_suspend_callback [2023-12-02 19:07:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_match [2023-12-02 19:07:31,604 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_match [2023-12-02 19:07:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-12-02 19:07:31,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-12-02 19:07:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_dev_suspend [2023-12-02 19:07:31,604 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_dev_suspend [2023-12-02 19:07:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_uevent [2023-12-02 19:07:31,605 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_uevent [2023-12-02 19:07:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_register_pcmcia [2023-12-02 19:07:31,609 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_register_pcmcia [2023-12-02 19:07:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_replace_cis [2023-12-02 19:07:31,609 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_replace_cis [2023-12-02 19:07:31,610 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_bus_remove [2023-12-02 19:07:31,610 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_bus_remove [2023-12-02 19:07:31,610 INFO L130 BoogieDeclarations]: Found specification of procedure manf_id_show [2023-12-02 19:07:31,610 INFO L138 BoogieDeclarations]: Found implementation of procedure manf_id_show [2023-12-02 19:07:31,610 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_loop_config [2023-12-02 19:07:31,611 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_loop_config [2023-12-02 19:07:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure parse_power [2023-12-02 19:07:31,612 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_power [2023-12-02 19:07:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure card_id_show [2023-12-02 19:07:31,612 INFO L138 BoogieDeclarations]: Found implementation of procedure card_id_show [2023-12-02 19:07:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_get_socket [2023-12-02 19:07:31,613 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_get_socket [2023-12-02 19:07:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_write_cis_mem [2023-12-02 19:07:31,613 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_write_cis_mem [2023-12-02 19:07:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure runtime_suspend [2023-12-02 19:07:31,613 INFO L138 BoogieDeclarations]: Found implementation of procedure runtime_suspend [2023-12-02 19:07:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure prod_id4_show [2023-12-02 19:07:31,613 INFO L138 BoogieDeclarations]: Found implementation of procedure prod_id4_show [2023-12-02 19:07:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure resources_show [2023-12-02 19:07:31,614 INFO L138 BoogieDeclarations]: Found implementation of procedure resources_show [2023-12-02 19:07:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-12-02 19:07:31,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-12-02 19:07:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2023-12-02 19:07:31,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2023-12-02 19:07:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_pcmcia_dynids [2023-12-02 19:07:31,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_pcmcia_dynids [2023-12-02 19:07:31,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:07:31,615 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2023-12-02 19:07:31,615 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2023-12-02 19:07:31,615 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-12-02 19:07:31,615 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2023-12-02 19:07:31,615 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2023-12-02 19:07:31,616 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_dev_resume [2023-12-02 19:07:31,616 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_dev_resume [2023-12-02 19:07:31,616 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_read_tuple [2023-12-02 19:07:31,616 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_read_tuple [2023-12-02 19:07:32,673 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:07:32,678 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:07:32,870 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 19:07:48,157 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:07:51,223 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:07:51,223 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 19:07:51,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:07:51 BoogieIcfgContainer [2023-12-02 19:07:51,226 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:07:51,229 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:07:51,229 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:07:51,232 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:07:51,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:07:26" (1/3) ... [2023-12-02 19:07:51,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f6550a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:07:51, skipping insertion in model container [2023-12-02 19:07:51,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (2/3) ... [2023-12-02 19:07:51,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f6550a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:07:51, skipping insertion in model container [2023-12-02 19:07:51,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:07:51" (3/3) ... [2023-12-02 19:07:51,234 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia.ko-entry_point.cil.out.i [2023-12-02 19:07:51,254 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:07:51,254 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:07:51,361 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:07:51,368 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;@7a7042ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:07:51,368 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:07:51,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 2818 states, 1835 states have (on average 1.4) internal successors, (2569), 1890 states have internal predecessors, (2569), 841 states have call successors, (841), 141 states have call predecessors, (841), 140 states have return successors, (822), 820 states have call predecessors, (822), 822 states have call successors, (822) [2023-12-02 19:07:51,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2023-12-02 19:07:51,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:07:51,420 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:07:51,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:07:51,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:07:51,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1365254, now seen corresponding path program 1 times [2023-12-02 19:07:51,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:07:51,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717247640] [2023-12-02 19:07:51,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:07:51,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:07:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:07:52,996 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2023-12-02 19:07:52,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:07:52,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717247640] [2023-12-02 19:07:52,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717247640] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:07:52,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:07:52,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:07:52,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185183598] [2023-12-02 19:07:53,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:07:53,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:07:53,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:07:53,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:07:53,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:07:53,034 INFO L87 Difference]: Start difference. First operand has 2818 states, 1835 states have (on average 1.4) internal successors, (2569), 1890 states have internal predecessors, (2569), 841 states have call successors, (841), 141 states have call predecessors, (841), 140 states have return successors, (822), 820 states have call predecessors, (822), 822 states have call successors, (822) Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-02 19:07:55,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:07:58,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:04,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:06,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:07,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:07,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:08:07,688 INFO L93 Difference]: Finished difference Result 8226 states and 12842 transitions. [2023-12-02 19:08:07,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:08:07,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 534 [2023-12-02 19:08:07,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:08:07,756 INFO L225 Difference]: With dead ends: 8226 [2023-12-02 19:08:07,757 INFO L226 Difference]: Without dead ends: 5454 [2023-12-02 19:08:07,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:08:07,798 INFO L413 NwaCegarLoop]: 3887 mSDtfsCounter, 4128 mSDsluCounter, 3725 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4128 SdHoareTripleChecker+Valid, 7612 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:08:07,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4128 Valid, 7612 Invalid, 691 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 685 Invalid, 4 Unknown, 0 Unchecked, 14.2s Time] [2023-12-02 19:08:07,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5454 states. [2023-12-02 19:08:08,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5454 to 5429. [2023-12-02 19:08:08,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5429 states, 3578 states have (on average 1.3921185019564002) internal successors, (4981), 3635 states have internal predecessors, (4981), 1572 states have call successors, (1572), 279 states have call predecessors, (1572), 278 states have return successors, (1558), 1552 states have call predecessors, (1558), 1558 states have call successors, (1558) [2023-12-02 19:08:08,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5429 states to 5429 states and 8111 transitions. [2023-12-02 19:08:08,264 INFO L78 Accepts]: Start accepts. Automaton has 5429 states and 8111 transitions. Word has length 534 [2023-12-02 19:08:08,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:08:08,267 INFO L495 AbstractCegarLoop]: Abstraction has 5429 states and 8111 transitions. [2023-12-02 19:08:08,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-02 19:08:08,268 INFO L276 IsEmpty]: Start isEmpty. Operand 5429 states and 8111 transitions. [2023-12-02 19:08:08,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2023-12-02 19:08:08,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:08:08,280 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:08:08,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:08:08,281 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:08:08,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:08:08,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1258726044, now seen corresponding path program 1 times [2023-12-02 19:08:08,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:08:08,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755813629] [2023-12-02 19:08:08,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:08:08,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:08:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:08:09,076 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2023-12-02 19:08:09,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:08:09,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755813629] [2023-12-02 19:08:09,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755813629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:08:09,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:08:09,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:08:09,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819894193] [2023-12-02 19:08:09,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:08:09,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:08:09,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:08:09,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:08:09,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:08:09,081 INFO L87 Difference]: Start difference. First operand 5429 states and 8111 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-02 19:08:11,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:15,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:21,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:23,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:24,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:08:24,586 INFO L93 Difference]: Finished difference Result 16065 states and 23997 transitions. [2023-12-02 19:08:24,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:08:24,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 535 [2023-12-02 19:08:24,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:08:24,646 INFO L225 Difference]: With dead ends: 16065 [2023-12-02 19:08:24,646 INFO L226 Difference]: Without dead ends: 10725 [2023-12-02 19:08:24,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:08:24,666 INFO L413 NwaCegarLoop]: 3914 mSDtfsCounter, 4131 mSDsluCounter, 3709 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4131 SdHoareTripleChecker+Valid, 7623 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:08:24,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4131 Valid, 7623 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 662 Invalid, 4 Unknown, 0 Unchecked, 15.0s Time] [2023-12-02 19:08:24,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10725 states. [2023-12-02 19:08:25,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10725 to 10700. [2023-12-02 19:08:25,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10700 states, 7065 states have (on average 1.3936305732484076) internal successors, (9846), 7168 states have internal predecessors, (9846), 3078 states have call successors, (3078), 557 states have call predecessors, (3078), 556 states have return successors, (3064), 3050 states have call predecessors, (3064), 3064 states have call successors, (3064) [2023-12-02 19:08:25,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10700 states to 10700 states and 15988 transitions. [2023-12-02 19:08:25,079 INFO L78 Accepts]: Start accepts. Automaton has 10700 states and 15988 transitions. Word has length 535 [2023-12-02 19:08:25,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:08:25,080 INFO L495 AbstractCegarLoop]: Abstraction has 10700 states and 15988 transitions. [2023-12-02 19:08:25,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-02 19:08:25,081 INFO L276 IsEmpty]: Start isEmpty. Operand 10700 states and 15988 transitions. [2023-12-02 19:08:25,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2023-12-02 19:08:25,094 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:08:25,094 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:08:25,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 19:08:25,094 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:08:25,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:08:25,095 INFO L85 PathProgramCache]: Analyzing trace with hash 251599650, now seen corresponding path program 1 times [2023-12-02 19:08:25,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:08:25,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689148771] [2023-12-02 19:08:25,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:08:25,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:08:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:08:26,119 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2023-12-02 19:08:26,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:08:26,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689148771] [2023-12-02 19:08:26,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689148771] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:08:26,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:08:26,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:08:26,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764820007] [2023-12-02 19:08:26,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:08:26,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:08:26,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:08:26,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:08:26,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:08:26,123 INFO L87 Difference]: Start difference. First operand 10700 states and 15988 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-02 19:08:28,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:30,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:34,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:35,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:39,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:42,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:44,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:45,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:08:45,496 INFO L93 Difference]: Finished difference Result 31808 states and 47520 transitions. [2023-12-02 19:08:45,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:08:45,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 535 [2023-12-02 19:08:45,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:08:45,643 INFO L225 Difference]: With dead ends: 31808 [2023-12-02 19:08:45,643 INFO L226 Difference]: Without dead ends: 21197 [2023-12-02 19:08:45,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:08:45,711 INFO L413 NwaCegarLoop]: 3958 mSDtfsCounter, 3981 mSDsluCounter, 3826 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3981 SdHoareTripleChecker+Valid, 7784 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:08:45,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3981 Valid, 7784 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 666 Invalid, 6 Unknown, 0 Unchecked, 18.8s Time] [2023-12-02 19:08:45,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21197 states. [2023-12-02 19:08:46,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21197 to 21178. [2023-12-02 19:08:46,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21178 states, 14017 states have (on average 1.3945209388599558) internal successors, (19547), 14201 states have internal predecessors, (19547), 6051 states have call successors, (6051), 1110 states have call predecessors, (6051), 1109 states have return successors, (6037), 6018 states have call predecessors, (6037), 6037 states have call successors, (6037) [2023-12-02 19:08:46,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21178 states to 21178 states and 31635 transitions. [2023-12-02 19:08:46,990 INFO L78 Accepts]: Start accepts. Automaton has 21178 states and 31635 transitions. Word has length 535 [2023-12-02 19:08:46,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:08:46,991 INFO L495 AbstractCegarLoop]: Abstraction has 21178 states and 31635 transitions. [2023-12-02 19:08:46,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-02 19:08:46,992 INFO L276 IsEmpty]: Start isEmpty. Operand 21178 states and 31635 transitions. [2023-12-02 19:08:47,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2023-12-02 19:08:47,006 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:08:47,006 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:08:47,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 19:08:47,007 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:08:47,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:08:47,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1248465972, now seen corresponding path program 1 times [2023-12-02 19:08:47,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:08:47,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179434562] [2023-12-02 19:08:47,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:08:47,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:08:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:08:48,233 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2023-12-02 19:08:48,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:08:48,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179434562] [2023-12-02 19:08:48,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179434562] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:08:48,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:08:48,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:08:48,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139514450] [2023-12-02 19:08:48,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:08:48,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:08:48,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:08:48,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:08:48,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:08:48,236 INFO L87 Difference]: Start difference. First operand 21178 states and 31635 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-02 19:08:49,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:56,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:58,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:01,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:09:01,751 INFO L93 Difference]: Finished difference Result 43681 states and 65430 transitions. [2023-12-02 19:09:01,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:09:01,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 537 [2023-12-02 19:09:01,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:09:01,828 INFO L225 Difference]: With dead ends: 43681 [2023-12-02 19:09:01,828 INFO L226 Difference]: Without dead ends: 22592 [2023-12-02 19:09:01,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:09:01,890 INFO L413 NwaCegarLoop]: 4341 mSDtfsCounter, 4652 mSDsluCounter, 3973 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 109 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4652 SdHoareTripleChecker+Valid, 8314 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2023-12-02 19:09:01,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4652 Valid, 8314 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 783 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2023-12-02 19:09:01,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22592 states. [2023-12-02 19:09:02,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22592 to 21186. [2023-12-02 19:09:02,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21186 states, 14025 states have (on average 1.3942245989304813) internal successors, (19554), 14209 states have internal predecessors, (19554), 6051 states have call successors, (6051), 1110 states have call predecessors, (6051), 1109 states have return successors, (6037), 6018 states have call predecessors, (6037), 6037 states have call successors, (6037) [2023-12-02 19:09:03,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21186 states to 21186 states and 31642 transitions. [2023-12-02 19:09:03,062 INFO L78 Accepts]: Start accepts. Automaton has 21186 states and 31642 transitions. Word has length 537 [2023-12-02 19:09:03,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:09:03,063 INFO L495 AbstractCegarLoop]: Abstraction has 21186 states and 31642 transitions. [2023-12-02 19:09:03,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-02 19:09:03,063 INFO L276 IsEmpty]: Start isEmpty. Operand 21186 states and 31642 transitions. [2023-12-02 19:09:03,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2023-12-02 19:09:03,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:09:03,068 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:09:03,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 19:09:03,069 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:09:03,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:09:03,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1019471317, now seen corresponding path program 1 times [2023-12-02 19:09:03,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:09:03,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506309934] [2023-12-02 19:09:03,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:09:03,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:09:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:09:03,978 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2023-12-02 19:09:03,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:09:03,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506309934] [2023-12-02 19:09:03,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506309934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:09:03,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:09:03,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:09:03,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670341122] [2023-12-02 19:09:03,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:09:03,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:09:03,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:09:03,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:09:03,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:09:03,981 INFO L87 Difference]: Start difference. First operand 21186 states and 31642 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-02 19:09:05,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:07,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:11,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:12,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:09:12,934 INFO L93 Difference]: Finished difference Result 21188 states and 31643 transitions. [2023-12-02 19:09:12,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:09:12,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 540 [2023-12-02 19:09:12,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:09:13,019 INFO L225 Difference]: With dead ends: 21188 [2023-12-02 19:09:13,019 INFO L226 Difference]: Without dead ends: 21185 [2023-12-02 19:09:13,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:09:13,031 INFO L413 NwaCegarLoop]: 3845 mSDtfsCounter, 4067 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4067 SdHoareTripleChecker+Valid, 3845 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:09:13,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4067 Valid, 3845 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2023-12-02 19:09:13,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21185 states. [2023-12-02 19:09:13,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21185 to 21185. [2023-12-02 19:09:13,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21185 states, 14025 states have (on average 1.3941532976827093) internal successors, (19553), 14208 states have internal predecessors, (19553), 6050 states have call successors, (6050), 1110 states have call predecessors, (6050), 1109 states have return successors, (6037), 6018 states have call predecessors, (6037), 6037 states have call successors, (6037) [2023-12-02 19:09:14,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21185 states to 21185 states and 31640 transitions. [2023-12-02 19:09:14,051 INFO L78 Accepts]: Start accepts. Automaton has 21185 states and 31640 transitions. Word has length 540 [2023-12-02 19:09:14,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:09:14,052 INFO L495 AbstractCegarLoop]: Abstraction has 21185 states and 31640 transitions. [2023-12-02 19:09:14,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-02 19:09:14,052 INFO L276 IsEmpty]: Start isEmpty. Operand 21185 states and 31640 transitions. [2023-12-02 19:09:14,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2023-12-02 19:09:14,057 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:09:14,057 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:09:14,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 19:09:14,057 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:09:14,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:09:14,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1537251640, now seen corresponding path program 1 times [2023-12-02 19:09:14,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:09:14,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553957443] [2023-12-02 19:09:14,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:09:14,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:09:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:09:14,919 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2023-12-02 19:09:14,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:09:14,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553957443] [2023-12-02 19:09:14,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553957443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:09:14,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:09:14,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:09:14,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011336721] [2023-12-02 19:09:14,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:09:14,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:09:14,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:09:14,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:09:14,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:09:14,922 INFO L87 Difference]: Start difference. First operand 21185 states and 31640 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-02 19:09:19,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:21,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:09:21,207 INFO L93 Difference]: Finished difference Result 21187 states and 31641 transitions. [2023-12-02 19:09:21,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:09:21,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 541 [2023-12-02 19:09:21,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:09:21,317 INFO L225 Difference]: With dead ends: 21187 [2023-12-02 19:09:21,317 INFO L226 Difference]: Without dead ends: 21184 [2023-12-02 19:09:21,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:09:21,331 INFO L413 NwaCegarLoop]: 3843 mSDtfsCounter, 4064 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4064 SdHoareTripleChecker+Valid, 3843 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:09:21,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4064 Valid, 3843 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2023-12-02 19:09:21,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21184 states. [2023-12-02 19:09:22,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21184 to 21184. [2023-12-02 19:09:22,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21184 states, 14025 states have (on average 1.3940819964349376) internal successors, (19552), 14207 states have internal predecessors, (19552), 6049 states have call successors, (6049), 1110 states have call predecessors, (6049), 1109 states have return successors, (6037), 6018 states have call predecessors, (6037), 6037 states have call successors, (6037) [2023-12-02 19:09:22,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21184 states to 21184 states and 31638 transitions. [2023-12-02 19:09:22,515 INFO L78 Accepts]: Start accepts. Automaton has 21184 states and 31638 transitions. Word has length 541 [2023-12-02 19:09:22,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:09:22,516 INFO L495 AbstractCegarLoop]: Abstraction has 21184 states and 31638 transitions. [2023-12-02 19:09:22,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-02 19:09:22,517 INFO L276 IsEmpty]: Start isEmpty. Operand 21184 states and 31638 transitions. [2023-12-02 19:09:22,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2023-12-02 19:09:22,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:09:22,522 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:09:22,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 19:09:22,522 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:09:22,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:09:22,523 INFO L85 PathProgramCache]: Analyzing trace with hash 408577336, now seen corresponding path program 1 times [2023-12-02 19:09:22,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:09:22,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179235353] [2023-12-02 19:09:22,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:09:22,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:09:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:09:23,451 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2023-12-02 19:09:23,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:09:23,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179235353] [2023-12-02 19:09:23,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179235353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:09:23,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:09:23,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:09:23,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024587382] [2023-12-02 19:09:23,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:09:23,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:09:23,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:09:23,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:09:23,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:09:23,454 INFO L87 Difference]: Start difference. First operand 21184 states and 31638 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-02 19:09:25,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:30,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:34,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:36,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:39,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:09:39,642 INFO L93 Difference]: Finished difference Result 60133 states and 92420 transitions. [2023-12-02 19:09:39,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:09:39,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 542 [2023-12-02 19:09:39,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:09:39,816 INFO L225 Difference]: With dead ends: 60133 [2023-12-02 19:09:39,817 INFO L226 Difference]: Without dead ends: 39038 [2023-12-02 19:09:39,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:09:39,984 INFO L413 NwaCegarLoop]: 4013 mSDtfsCounter, 4143 mSDsluCounter, 3036 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4143 SdHoareTripleChecker+Valid, 7049 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:09:39,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4143 Valid, 7049 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 642 Invalid, 4 Unknown, 0 Unchecked, 14.6s Time] [2023-12-02 19:09:40,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39038 states. [2023-12-02 19:09:41,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39038 to 38989. [2023-12-02 19:09:41,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38989 states, 25605 states have (on average 1.387658660417887) internal successors, (35531), 25954 states have internal predecessors, (35531), 11234 states have call successors, (11234), 2167 states have call predecessors, (11234), 2149 states have return successors, (12109), 11155 states have call predecessors, (12109), 11221 states have call successors, (12109) [2023-12-02 19:09:42,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38989 states to 38989 states and 58874 transitions. [2023-12-02 19:09:42,074 INFO L78 Accepts]: Start accepts. Automaton has 38989 states and 58874 transitions. Word has length 542 [2023-12-02 19:09:42,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:09:42,074 INFO L495 AbstractCegarLoop]: Abstraction has 38989 states and 58874 transitions. [2023-12-02 19:09:42,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-02 19:09:42,074 INFO L276 IsEmpty]: Start isEmpty. Operand 38989 states and 58874 transitions. [2023-12-02 19:09:42,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2023-12-02 19:09:42,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:09:42,079 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:09:42,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 19:09:42,079 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:09:42,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:09:42,080 INFO L85 PathProgramCache]: Analyzing trace with hash -220582853, now seen corresponding path program 1 times [2023-12-02 19:09:42,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:09:42,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499892822] [2023-12-02 19:09:42,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:09:42,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:09:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:09:42,686 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2023-12-02 19:09:42,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:09:42,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499892822] [2023-12-02 19:09:42,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499892822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:09:42,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:09:42,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:09:42,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067472023] [2023-12-02 19:09:42,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:09:42,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:09:42,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:09:42,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:09:42,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:09:42,689 INFO L87 Difference]: Start difference. First operand 38989 states and 58874 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-02 19:09:44,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:50,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:55,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:57,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:01,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:10:01,779 INFO L93 Difference]: Finished difference Result 113309 states and 179106 transitions. [2023-12-02 19:10:01,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:10:01,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 543 [2023-12-02 19:10:01,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:10:02,050 INFO L225 Difference]: With dead ends: 113309 [2023-12-02 19:10:02,051 INFO L226 Difference]: Without dead ends: 74409 [2023-12-02 19:10:02,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:10:02,237 INFO L413 NwaCegarLoop]: 4038 mSDtfsCounter, 4154 mSDsluCounter, 3057 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4154 SdHoareTripleChecker+Valid, 7095 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:10:02,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4154 Valid, 7095 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 623 Invalid, 4 Unknown, 0 Unchecked, 15.9s Time] [2023-12-02 19:10:02,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74409 states. [2023-12-02 19:10:05,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74409 to 74276. [2023-12-02 19:10:05,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74276 states, 48614 states have (on average 1.3846834245279138) internal successors, (67315), 49297 states have internal predecessors, (67315), 21504 states have call successors, (21504), 4245 states have call predecessors, (21504), 4157 states have return successors, (25865), 21293 states have call predecessors, (25865), 21489 states have call successors, (25865) [2023-12-02 19:10:06,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74276 states to 74276 states and 114684 transitions. [2023-12-02 19:10:06,463 INFO L78 Accepts]: Start accepts. Automaton has 74276 states and 114684 transitions. Word has length 543 [2023-12-02 19:10:06,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:10:06,463 INFO L495 AbstractCegarLoop]: Abstraction has 74276 states and 114684 transitions. [2023-12-02 19:10:06,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-02 19:10:06,464 INFO L276 IsEmpty]: Start isEmpty. Operand 74276 states and 114684 transitions. [2023-12-02 19:10:06,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2023-12-02 19:10:06,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:10:06,470 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:10:06,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 19:10:06,470 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:10:06,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:10:06,471 INFO L85 PathProgramCache]: Analyzing trace with hash 2011858751, now seen corresponding path program 1 times [2023-12-02 19:10:06,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:10:06,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141656941] [2023-12-02 19:10:06,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:10:06,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:10:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:10:07,182 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2023-12-02 19:10:07,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:10:07,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141656941] [2023-12-02 19:10:07,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141656941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:10:07,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:10:07,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:10:07,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219023078] [2023-12-02 19:10:07,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:10:07,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:10:07,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:10:07,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:10:07,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:10:07,186 INFO L87 Difference]: Start difference. First operand 74276 states and 114684 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-12-02 19:10:09,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:13,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:17,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:23,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:25,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:30,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:10:30,311 INFO L93 Difference]: Finished difference Result 222210 states and 343130 transitions. [2023-12-02 19:10:30,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:10:30,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 545 [2023-12-02 19:10:30,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:10:31,128 INFO L225 Difference]: With dead ends: 222210 [2023-12-02 19:10:31,128 INFO L226 Difference]: Without dead ends: 148023 [2023-12-02 19:10:31,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:10:31,381 INFO L413 NwaCegarLoop]: 3961 mSDtfsCounter, 4054 mSDsluCounter, 3701 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4054 SdHoareTripleChecker+Valid, 7662 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:10:31,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4054 Valid, 7662 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 662 Invalid, 5 Unknown, 0 Unchecked, 16.4s Time] [2023-12-02 19:10:31,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148023 states. [2023-12-02 19:10:39,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148023 to 147984. [2023-12-02 19:10:39,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147984 states, 96898 states have (on average 1.3851575883919174) internal successors, (134219), 98249 states have internal predecessors, (134219), 42788 states have call successors, (42788), 8469 states have call predecessors, (42788), 8297 states have return successors, (51525), 42377 states have call predecessors, (51525), 42773 states have call successors, (51525) [2023-12-02 19:10:40,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147984 states to 147984 states and 228532 transitions. [2023-12-02 19:10:40,051 INFO L78 Accepts]: Start accepts. Automaton has 147984 states and 228532 transitions. Word has length 545 [2023-12-02 19:10:40,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:10:40,051 INFO L495 AbstractCegarLoop]: Abstraction has 147984 states and 228532 transitions. [2023-12-02 19:10:40,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-12-02 19:10:40,052 INFO L276 IsEmpty]: Start isEmpty. Operand 147984 states and 228532 transitions. [2023-12-02 19:10:40,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2023-12-02 19:10:40,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:10:40,056 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:10:40,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 19:10:40,056 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:10:40,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:10:40,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1750292635, now seen corresponding path program 1 times [2023-12-02 19:10:40,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:10:40,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752642273] [2023-12-02 19:10:40,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:10:40,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:10:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:10:41,023 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2023-12-02 19:10:41,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:10:41,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752642273] [2023-12-02 19:10:41,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752642273] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:10:41,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:10:41,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:10:41,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022134248] [2023-12-02 19:10:41,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:10:41,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:10:41,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:10:41,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:10:41,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:10:41,026 INFO L87 Difference]: Start difference. First operand 147984 states and 228532 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-02 19:10:43,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:49,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:51,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:56,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:07,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:11:07,827 INFO L93 Difference]: Finished difference Result 372252 states and 599143 transitions. [2023-12-02 19:11:07,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:11:07,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 544 [2023-12-02 19:11:07,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:11:09,085 INFO L225 Difference]: With dead ends: 372252 [2023-12-02 19:11:09,085 INFO L226 Difference]: Without dead ends: 224357 [2023-12-02 19:11:10,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:11:10,101 INFO L413 NwaCegarLoop]: 5185 mSDtfsCounter, 3521 mSDsluCounter, 2593 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3521 SdHoareTripleChecker+Valid, 7778 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:11:10,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3521 Valid, 7778 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 716 Invalid, 4 Unknown, 0 Unchecked, 15.0s Time] [2023-12-02 19:11:10,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224357 states. [2023-12-02 19:11:22,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224357 to 222506. [2023-12-02 19:11:22,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222506 states, 149575 states have (on average 1.4060036770850743) internal successors, (210303), 152819 states have internal predecessors, (210303), 58967 states have call successors, (58967), 14911 states have call predecessors, (58967), 13963 states have return successors, (72791), 56224 states have call predecessors, (72791), 58943 states have call successors, (72791) [2023-12-02 19:11:23,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222506 states to 222506 states and 342061 transitions. [2023-12-02 19:11:23,946 INFO L78 Accepts]: Start accepts. Automaton has 222506 states and 342061 transitions. Word has length 544 [2023-12-02 19:11:23,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:11:23,947 INFO L495 AbstractCegarLoop]: Abstraction has 222506 states and 342061 transitions. [2023-12-02 19:11:23,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-02 19:11:23,947 INFO L276 IsEmpty]: Start isEmpty. Operand 222506 states and 342061 transitions. [2023-12-02 19:11:23,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2023-12-02 19:11:23,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:11:23,955 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:11:23,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 19:11:23,956 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:11:23,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:11:23,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1577071810, now seen corresponding path program 1 times [2023-12-02 19:11:23,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:11:23,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035643386] [2023-12-02 19:11:23,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:11:23,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:11:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:11:24,650 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2023-12-02 19:11:24,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:11:24,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035643386] [2023-12-02 19:11:24,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035643386] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:11:24,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:11:24,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:11:24,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896355002] [2023-12-02 19:11:24,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:11:24,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:11:24,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:11:24,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:11:24,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:11:24,655 INFO L87 Difference]: Start difference. First operand 222506 states and 342061 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-02 19:11:26,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:30,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:35,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:38,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:41,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:53,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:11:53,919 INFO L93 Difference]: Finished difference Result 320578 states and 492867 transitions. [2023-12-02 19:11:53,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:11:53,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 545 [2023-12-02 19:11:53,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:11:55,519 INFO L225 Difference]: With dead ends: 320578 [2023-12-02 19:11:55,520 INFO L226 Difference]: Without dead ends: 320563 [2023-12-02 19:11:55,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:11:55,641 INFO L413 NwaCegarLoop]: 3833 mSDtfsCounter, 4008 mSDsluCounter, 3106 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4008 SdHoareTripleChecker+Valid, 6939 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:11:55,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4008 Valid, 6939 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 623 Invalid, 5 Unknown, 0 Unchecked, 16.5s Time] [2023-12-02 19:11:55,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320563 states. [2023-12-02 19:12:12,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320563 to 320453. [2023-12-02 19:12:12,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320453 states, 215814 states have (on average 1.407610256980548) internal successors, (303782), 220400 states have internal predecessors, (303782), 84236 states have call successors, (84236), 21766 states have call predecessors, (84236), 20402 states have return successors, (104702), 80327 states have call predecessors, (104702), 84214 states have call successors, (104702) [2023-12-02 19:12:15,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320453 states to 320453 states and 492720 transitions. [2023-12-02 19:12:15,070 INFO L78 Accepts]: Start accepts. Automaton has 320453 states and 492720 transitions. Word has length 545 [2023-12-02 19:12:15,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:12:15,071 INFO L495 AbstractCegarLoop]: Abstraction has 320453 states and 492720 transitions. [2023-12-02 19:12:15,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-02 19:12:15,071 INFO L276 IsEmpty]: Start isEmpty. Operand 320453 states and 492720 transitions. [2023-12-02 19:12:15,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2023-12-02 19:12:15,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:12:15,077 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:12:15,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 19:12:15,078 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:12:15,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:12:15,078 INFO L85 PathProgramCache]: Analyzing trace with hash -18267677, now seen corresponding path program 1 times [2023-12-02 19:12:15,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:12:15,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385784249] [2023-12-02 19:12:15,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:15,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:12:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:15,594 INFO L134 CoverageAnalysis]: Checked inductivity of 7842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7842 trivial. 0 not checked. [2023-12-02 19:12:15,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:12:15,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385784249] [2023-12-02 19:12:15,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385784249] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:12:15,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:12:15,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:12:15,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432760534] [2023-12-02 19:12:15,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:12:15,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:12:15,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:12:15,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:12:15,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:12:15,596 INFO L87 Difference]: Start difference. First operand 320453 states and 492720 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-12-02 19:12:17,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:12:22,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:12:31,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:12:33,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:13:04,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:13:04,051 INFO L93 Difference]: Finished difference Result 960899 states and 1477452 transitions. [2023-12-02 19:13:04,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:13:04,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 554 [2023-12-02 19:13:04,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:13:07,992 INFO L225 Difference]: With dead ends: 960899 [2023-12-02 19:13:07,992 INFO L226 Difference]: Without dead ends: 640535 [2023-12-02 19:13:09,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:13:09,673 INFO L413 NwaCegarLoop]: 3994 mSDtfsCounter, 4079 mSDsluCounter, 3687 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4079 SdHoareTripleChecker+Valid, 7681 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:13:09,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4079 Valid, 7681 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 663 Invalid, 4 Unknown, 0 Unchecked, 15.9s Time] [2023-12-02 19:13:10,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640535 states.