./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-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje --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 157989b4f90cc2fce5145f0d7f18656f73b74aa3ad56df1e0323ab8aecdaa0a4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:53:00,596 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:53:00,723 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 05:53:00,739 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:53:00,739 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:53:00,786 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:53:00,786 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:53:00,787 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:53:00,789 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:53:00,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:53:00,791 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:53:00,791 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:53:00,792 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:53:00,792 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:53:00,793 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:53:00,795 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:53:00,796 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:53:00,796 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:53:00,797 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:53:00,797 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:53:00,797 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:53:00,802 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:53:00,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:53:00,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:53:00,804 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:53:00,804 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:53:00,804 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:53:00,805 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:53:00,805 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:53:00,805 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:53:00,806 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:53:00,809 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:53:00,826 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:53:00,826 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:53:00,827 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:53:00,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:53:00,828 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:53:00,828 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:53:00,828 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:53:00,829 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:53:00,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:53:00,830 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:53:00,830 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:53:00,830 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:53:00,830 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_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 157989b4f90cc2fce5145f0d7f18656f73b74aa3ad56df1e0323ab8aecdaa0a4 [2024-11-09 05:53:01,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:53:01,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:53:01,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:53:01,252 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:53:01,253 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:53:01,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-09 05:53:03,764 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:53:04,435 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:53:04,435 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i [2024-11-09 05:53:04,515 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/data/2746c755b/d66b76fd25a84120beed622f5ef199eb/FLAG8cbd1f3d6 [2024-11-09 05:53:04,832 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/data/2746c755b/d66b76fd25a84120beed622f5ef199eb [2024-11-09 05:53:04,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:53:04,837 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:53:04,839 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:53:04,839 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:53:04,847 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:53:04,851 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:53:04" (1/1) ... [2024-11-09 05:53:04,852 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e687955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:04, skipping insertion in model container [2024-11-09 05:53:04,852 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:53:04" (1/1) ... [2024-11-09 05:53:05,048 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:53:07,934 WARN L250 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_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2024-11-09 05:53:08,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:53:08,084 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:53:08,298 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [6039] [2024-11-09 05:53:08,300 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [6046] [2024-11-09 05:53:08,307 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [6183] [2024-11-09 05:53:08,311 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [6194] [2024-11-09 05:53:08,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6197] [2024-11-09 05:53:08,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6200] [2024-11-09 05:53:08,313 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6203] [2024-11-09 05:53:08,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [6268] [2024-11-09 05:53:08,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [6276] [2024-11-09 05:53:08,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [6283] [2024-11-09 05:53:08,327 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [6291] [2024-11-09 05:53:08,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [6472-6473] [2024-11-09 05:53:08,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [6501-6502] [2024-11-09 05:53:08,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (108), "i" (12UL)); [6531-6532] [2024-11-09 05:53:08,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (120), "i" (12UL)); [6561-6562] [2024-11-09 05:53:08,369 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6925] [2024-11-09 05:53:08,495 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7948] [2024-11-09 05:53:08,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7950] [2024-11-09 05:53:08,506 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8140] [2024-11-09 05:53:08,507 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8142] [2024-11-09 05:53:08,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8497] [2024-11-09 05:53:08,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8509] [2024-11-09 05:53:08,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8560] [2024-11-09 05:53:08,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8699] [2024-11-09 05:53:08,583 WARN L250 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_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2024-11-09 05:53:08,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:53:08,763 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:53:08,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:08 WrapperNode [2024-11-09 05:53:08,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:53:08,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:53:08,767 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:53:08,767 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:53:08,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:08" (1/1) ... [2024-11-09 05:53:08,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:08" (1/1) ... [2024-11-09 05:53:09,179 INFO L138 Inliner]: procedures = 275, calls = 2334, calls flagged for inlining = 132, calls inlined = 125, statements flattened = 5590 [2024-11-09 05:53:09,181 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:53:09,183 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:53:09,183 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:53:09,183 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:53:09,196 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:08" (1/1) ... [2024-11-09 05:53:09,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:08" (1/1) ... [2024-11-09 05:53:09,248 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:08" (1/1) ... [2024-11-09 05:53:09,248 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:08" (1/1) ... [2024-11-09 05:53:09,417 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:08" (1/1) ... [2024-11-09 05:53:09,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:08" (1/1) ... [2024-11-09 05:53:09,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:08" (1/1) ... [2024-11-09 05:53:09,588 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:08" (1/1) ... [2024-11-09 05:53:09,644 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:53:09,645 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:53:09,646 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:53:09,647 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:53:09,648 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:08" (1/1) ... [2024-11-09 05:53:09,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:53:09,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:53:09,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:53:09,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:53:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-09 05:53:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-09 05:53:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_2 [2024-11-09 05:53:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_2 [2024-11-09 05:53:09,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 05:53:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 05:53:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-11-09 05:53:09,740 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-11-09 05:53:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 05:53:09,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 05:53:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 05:53:09,741 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 05:53:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-09 05:53:09,741 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-09 05:53:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-11-09 05:53:09,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-11-09 05:53:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_count [2024-11-09 05:53:09,741 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_count [2024-11-09 05:53:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 05:53:09,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 05:53:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2024-11-09 05:53:09,742 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2024-11-09 05:53:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_status [2024-11-09 05:53:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_status [2024-11-09 05:53:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-11-09 05:53:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-11-09 05:53:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_status [2024-11-09 05:53:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_status [2024-11-09 05:53:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2024-11-09 05:53:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2024-11-09 05:53:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-09 05:53:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-09 05:53:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 05:53:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 05:53:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ring_debug [2024-11-09 05:53:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ring_debug [2024-11-09 05:53:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-11-09 05:53:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-11-09 05:53:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2024-11-09 05:53:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2024-11-09 05:53:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 05:53:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 05:53:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:53:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:53:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-09 05:53:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-09 05:53:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2024-11-09 05:53:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2024-11-09 05:53:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2024-11-09 05:53:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2024-11-09 05:53:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure ring_get [2024-11-09 05:53:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_get [2024-11-09 05:53:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2024-11-09 05:53:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2024-11-09 05:53:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:53:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_resume [2024-11-09 05:53:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_resume [2024-11-09 05:53:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-11-09 05:53:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-11-09 05:53:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:53:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2024-11-09 05:53:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2024-11-09 05:53:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2024-11-09 05:53:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2024-11-09 05:53:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-09 05:53:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-09 05:53:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_us_delta [2024-11-09 05:53:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_us_delta [2024-11-09 05:53:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-09 05:53:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-09 05:53:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_free_ring [2024-11-09 05:53:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_free_ring [2024-11-09 05:53:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure ring_last [2024-11-09 05:53:09,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_last [2024-11-09 05:53:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2024-11-09 05:53:09,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2024-11-09 05:53:09,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:53:09,757 INFO L130 BoogieDeclarations]: Found specification of procedure ring_put [2024-11-09 05:53:09,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_put [2024-11-09 05:53:09,757 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2024-11-09 05:53:09,757 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2024-11-09 05:53:09,757 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 05:53:09,758 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 05:53:09,758 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2024-11-09 05:53:09,758 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2024-11-09 05:53:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2024-11-09 05:53:09,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2024-11-09 05:53:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-09 05:53:09,759 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-09 05:53:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_tx_timeout [2024-11-09 05:53:09,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_tx_timeout [2024-11-09 05:53:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-09 05:53:09,760 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-09 05:53:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-09 05:53:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-09 05:53:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-09 05:53:09,762 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-09 05:53:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-09 05:53:09,762 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-09 05:53:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-09 05:53:09,762 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-09 05:53:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_addr_status [2024-11-09 05:53:09,763 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_addr_status [2024-11-09 05:53:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 05:53:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_destroy_hwif [2024-11-09 05:53:09,764 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_destroy_hwif [2024-11-09 05:53:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-11-09 05:53:09,764 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-11-09 05:53:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 05:53:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-09 05:53:09,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-09 05:53:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_stop_hw [2024-11-09 05:53:09,765 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_stop_hw [2024-11-09 05:53:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_addr [2024-11-09 05:53:09,765 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_addr [2024-11-09 05:53:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:53:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-09 05:53:09,766 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-09 05:53:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-11-09 05:53:09,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-11-09 05:53:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_remove [2024-11-09 05:53:09,767 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_remove [2024-11-09 05:53:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 05:53:09,767 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 05:53:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2024-11-09 05:53:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2024-11-09 05:53:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_clear_regs [2024-11-09 05:53:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_clear_regs [2024-11-09 05:53:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-09 05:53:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-09 05:53:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-11-09 05:53:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-11-09 05:53:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2024-11-09 05:53:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2024-11-09 05:53:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 05:53:09,769 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 05:53:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_start_hw [2024-11-09 05:53:09,769 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_start_hw [2024-11-09 05:53:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2024-11-09 05:53:09,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2024-11-09 05:53:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:53:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-11-09 05:53:09,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-11-09 05:53:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2024-11-09 05:53:09,770 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2024-11-09 05:53:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2024-11-09 05:53:09,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2024-11-09 05:53:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure rd_activate [2024-11-09 05:53:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_activate [2024-11-09 05:53:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2024-11-09 05:53:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2024-11-09 05:53:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 05:53:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 05:53:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure rd_is_active [2024-11-09 05:53:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_is_active [2024-11-09 05:53:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure irlap_close [2024-11-09 05:53:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure irlap_close [2024-11-09 05:53:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-09 05:53:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-09 05:53:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:53:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_count [2024-11-09 05:53:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_count [2024-11-09 05:53:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-09 05:53:09,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-09 05:53:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2024-11-09 05:53:09,776 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2024-11-09 05:53:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:53:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2024-11-09 05:53:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2024-11-09 05:53:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-09 05:53:09,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-09 05:53:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 05:53:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_tx [2024-11-09 05:53:09,779 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_tx [2024-11-09 05:53:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2024-11-09 05:53:09,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2024-11-09 05:53:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ioctl [2024-11-09 05:53:09,780 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ioctl [2024-11-09 05:53:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_2 [2024-11-09 05:53:09,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_2 [2024-11-09 05:53:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2024-11-09 05:53:09,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2024-11-09 05:53:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_alloc_ring [2024-11-09 05:53:09,781 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_alloc_ring [2024-11-09 05:53:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_fill_rx [2024-11-09 05:53:09,781 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_fill_rx [2024-11-09 05:53:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2024-11-09 05:53:09,781 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2024-11-09 05:53:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_rx [2024-11-09 05:53:09,781 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_rx [2024-11-09 05:53:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-09 05:53:09,782 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-09 05:53:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_reg_debug [2024-11-09 05:53:09,782 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_reg_debug [2024-11-09 05:53:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:53:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_set_baud [2024-11-09 05:53:09,782 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_set_baud [2024-11-09 05:53:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2024-11-09 05:53:09,782 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2024-11-09 05:53:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure ring_first [2024-11-09 05:53:09,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_first [2024-11-09 05:53:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2024-11-09 05:53:09,783 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2024-11-09 05:53:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:53:09,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:53:10,722 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:53:10,726 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:53:11,398 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 05:53:22,514 INFO L? ?]: Removed 2005 outVars from TransFormulas that were not future-live. [2024-11-09 05:53:22,514 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:53:25,275 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:53:25,276 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:53:25,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:53:25 BoogieIcfgContainer [2024-11-09 05:53:25,277 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:53:25,280 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:53:25,281 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:53:25,286 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:53:25,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:53:04" (1/3) ... [2024-11-09 05:53:25,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2189f38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:53:25, skipping insertion in model container [2024-11-09 05:53:25,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:08" (2/3) ... [2024-11-09 05:53:25,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2189f38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:53:25, skipping insertion in model container [2024-11-09 05:53:25,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:53:25" (3/3) ... [2024-11-09 05:53:25,294 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i [2024-11-09 05:53:25,321 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:53:25,321 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:53:25,500 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:53:25,509 INFO L333 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, 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;@2ec96b79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:53:25,509 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:53:25,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 1416 states, 854 states have (on average 1.2985948477751756) internal successors, (1109), 877 states have internal predecessors, (1109), 466 states have call successors, (466), 95 states have call predecessors, (466), 94 states have return successors, (459), 459 states have call predecessors, (459), 459 states have call successors, (459) [2024-11-09 05:53:25,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-09 05:53:25,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:53:25,566 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:53:25,566 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:53:25,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:53:25,574 INFO L85 PathProgramCache]: Analyzing trace with hash -421217725, now seen corresponding path program 1 times [2024-11-09 05:53:25,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:53:25,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095118863] [2024-11-09 05:53:25,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:53:25,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:53:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:53:31,799 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-09 05:53:31,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:53:31,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095118863] [2024-11-09 05:53:31,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095118863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:53:31,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:53:31,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:53:31,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353836874] [2024-11-09 05:53:31,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:53:31,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:53:31,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:53:31,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:53:31,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:53:31,853 INFO L87 Difference]: Start difference. First operand has 1416 states, 854 states have (on average 1.2985948477751756) internal successors, (1109), 877 states have internal predecessors, (1109), 466 states have call successors, (466), 95 states have call predecessors, (466), 94 states have return successors, (459), 459 states have call predecessors, (459), 459 states have call successors, (459) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 05:53:33,961 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 [] [2024-11-09 05:53:38,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:53:42,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:53:44,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:53:44,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:53:44,870 INFO L93 Difference]: Finished difference Result 3748 states and 5399 transitions. [2024-11-09 05:53:44,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:53:44,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 131 [2024-11-09 05:53:44,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:53:44,932 INFO L225 Difference]: With dead ends: 3748 [2024-11-09 05:53:44,932 INFO L226 Difference]: Without dead ends: 2322 [2024-11-09 05:53:44,947 INFO L431 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 [2024-11-09 05:53:44,953 INFO L432 NwaCegarLoop]: 1859 mSDtfsCounter, 1382 mSDsluCounter, 1747 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 3606 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:53:44,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 3606 Invalid, 430 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 422 Invalid, 2 Unknown, 0 Unchecked, 12.6s Time] [2024-11-09 05:53:44,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2322 states. [2024-11-09 05:53:45,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2322 to 2318. [2024-11-09 05:53:45,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 1403 states have (on average 1.2815395580898075) internal successors, (1798), 1422 states have internal predecessors, (1798), 748 states have call successors, (748), 167 states have call predecessors, (748), 166 states have return successors, (751), 746 states have call predecessors, (751), 747 states have call successors, (751) [2024-11-09 05:53:45,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 3297 transitions. [2024-11-09 05:53:45,307 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 3297 transitions. Word has length 131 [2024-11-09 05:53:45,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:53:45,311 INFO L471 AbstractCegarLoop]: Abstraction has 2318 states and 3297 transitions. [2024-11-09 05:53:45,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 05:53:45,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 3297 transitions. [2024-11-09 05:53:45,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-09 05:53:45,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:53:45,335 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:53:45,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:53:45,336 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:53:45,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:53:45,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1160650737, now seen corresponding path program 1 times [2024-11-09 05:53:45,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:53:45,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043768050] [2024-11-09 05:53:45,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:53:45,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:53:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:53:50,336 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-09 05:53:50,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:53:50,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043768050] [2024-11-09 05:53:50,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043768050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:53:50,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:53:50,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:53:50,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901169251] [2024-11-09 05:53:50,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:53:50,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:53:50,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:53:50,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:53:50,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:53:50,348 INFO L87 Difference]: Start difference. First operand 2318 states and 3297 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 05:53:52,432 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 [] [2024-11-09 05:53:54,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:53:56,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:54:05,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:54:07,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:54:11,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:54:12,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:54:12,729 INFO L93 Difference]: Finished difference Result 6794 states and 9654 transitions. [2024-11-09 05:54:12,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:54:12,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 198 [2024-11-09 05:54:12,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:54:12,774 INFO L225 Difference]: With dead ends: 6794 [2024-11-09 05:54:12,774 INFO L226 Difference]: Without dead ends: 4504 [2024-11-09 05:54:12,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:54:12,798 INFO L432 NwaCegarLoop]: 1867 mSDtfsCounter, 1801 mSDsluCounter, 5490 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 7357 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:54:12,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1802 Valid, 7357 Invalid, 855 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 848 Invalid, 4 Unknown, 0 Unchecked, 21.8s Time] [2024-11-09 05:54:12,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4504 states. [2024-11-09 05:54:13,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4504 to 4488. [2024-11-09 05:54:13,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4488 states, 2717 states have (on average 1.2826647037173353) internal successors, (3485), 2761 states have internal predecessors, (3485), 1442 states have call successors, (1442), 329 states have call predecessors, (1442), 328 states have return successors, (1449), 1430 states have call predecessors, (1449), 1441 states have call successors, (1449) [2024-11-09 05:54:13,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4488 states to 4488 states and 6376 transitions. [2024-11-09 05:54:13,132 INFO L78 Accepts]: Start accepts. Automaton has 4488 states and 6376 transitions. Word has length 198 [2024-11-09 05:54:13,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:54:13,133 INFO L471 AbstractCegarLoop]: Abstraction has 4488 states and 6376 transitions. [2024-11-09 05:54:13,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 05:54:13,134 INFO L276 IsEmpty]: Start isEmpty. Operand 4488 states and 6376 transitions. [2024-11-09 05:54:13,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-09 05:54:13,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:13,149 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:54:13,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:54:13,150 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:54:13,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:13,151 INFO L85 PathProgramCache]: Analyzing trace with hash -716470189, now seen corresponding path program 1 times [2024-11-09 05:54:13,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:54:13,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513145703] [2024-11-09 05:54:13,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:13,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:54:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:17,837 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-09 05:54:17,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:54:17,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513145703] [2024-11-09 05:54:17,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513145703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:54:17,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:54:17,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:54:17,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420062575] [2024-11-09 05:54:17,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:54:17,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:54:17,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:54:17,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:54:17,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:54:17,844 INFO L87 Difference]: Start difference. First operand 4488 states and 6376 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 05:54:19,927 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 [] [2024-11-09 05:54:21,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:54:23,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:54:33,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:54:36,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:54:36,565 INFO L93 Difference]: Finished difference Result 9824 states and 13863 transitions. [2024-11-09 05:54:36,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:54:36,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 201 [2024-11-09 05:54:36,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:54:36,616 INFO L225 Difference]: With dead ends: 9824 [2024-11-09 05:54:36,616 INFO L226 Difference]: Without dead ends: 6686 [2024-11-09 05:54:36,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:54:36,635 INFO L432 NwaCegarLoop]: 1868 mSDtfsCounter, 1797 mSDsluCounter, 5491 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1798 SdHoareTripleChecker+Valid, 7359 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:54:36,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1798 Valid, 7359 Invalid, 849 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 843 Invalid, 3 Unknown, 0 Unchecked, 18.3s Time] [2024-11-09 05:54:36,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6686 states. [2024-11-09 05:54:36,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6686 to 6664. [2024-11-09 05:54:36,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6664 states, 4039 states have (on average 1.2824956672443675) internal successors, (5180), 4098 states have internal predecessors, (5180), 2134 states have call successors, (2134), 491 states have call predecessors, (2134), 490 states have return successors, (2145), 2122 states have call predecessors, (2145), 2133 states have call successors, (2145) [2024-11-09 05:54:37,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6664 states to 6664 states and 9459 transitions. [2024-11-09 05:54:37,024 INFO L78 Accepts]: Start accepts. Automaton has 6664 states and 9459 transitions. Word has length 201 [2024-11-09 05:54:37,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:54:37,025 INFO L471 AbstractCegarLoop]: Abstraction has 6664 states and 9459 transitions. [2024-11-09 05:54:37,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 05:54:37,026 INFO L276 IsEmpty]: Start isEmpty. Operand 6664 states and 9459 transitions. [2024-11-09 05:54:37,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-09 05:54:37,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:37,035 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:54:37,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:54:37,036 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:54:37,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:37,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1388690066, now seen corresponding path program 1 times [2024-11-09 05:54:37,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:54:37,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182486758] [2024-11-09 05:54:37,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:37,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:54:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:40,982 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-09 05:54:40,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:54:40,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182486758] [2024-11-09 05:54:40,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182486758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:54:40,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:54:40,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:54:40,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625887169] [2024-11-09 05:54:40,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:54:40,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:54:40,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:54:40,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:54:40,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:54:40,994 INFO L87 Difference]: Start difference. First operand 6664 states and 9459 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 05:54:43,076 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 [] [2024-11-09 05:54:45,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:54:47,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:54:53,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:54:58,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:54:59,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:54:59,266 INFO L93 Difference]: Finished difference Result 12010 states and 16954 transitions. [2024-11-09 05:54:59,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:54:59,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 200 [2024-11-09 05:54:59,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:54:59,322 INFO L225 Difference]: With dead ends: 12010 [2024-11-09 05:54:59,322 INFO L226 Difference]: Without dead ends: 6694 [2024-11-09 05:54:59,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:54:59,355 INFO L432 NwaCegarLoop]: 1868 mSDtfsCounter, 1798 mSDsluCounter, 5491 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1799 SdHoareTripleChecker+Valid, 7359 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:54:59,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1799 Valid, 7359 Invalid, 849 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 843 Invalid, 3 Unknown, 0 Unchecked, 17.7s Time] [2024-11-09 05:54:59,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6694 states. [2024-11-09 05:54:59,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6694 to 6672. [2024-11-09 05:54:59,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6672 states, 4047 states have (on average 1.2819372374598468) internal successors, (5188), 4104 states have internal predecessors, (5188), 2132 states have call successors, (2132), 493 states have call predecessors, (2132), 492 states have return successors, (2143), 2122 states have call predecessors, (2143), 2131 states have call successors, (2143) [2024-11-09 05:54:59,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6672 states to 6672 states and 9463 transitions. [2024-11-09 05:54:59,865 INFO L78 Accepts]: Start accepts. Automaton has 6672 states and 9463 transitions. Word has length 200 [2024-11-09 05:54:59,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:54:59,866 INFO L471 AbstractCegarLoop]: Abstraction has 6672 states and 9463 transitions. [2024-11-09 05:54:59,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 05:54:59,867 INFO L276 IsEmpty]: Start isEmpty. Operand 6672 states and 9463 transitions. [2024-11-09 05:54:59,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-09 05:54:59,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:59,877 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:54:59,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:54:59,878 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:54:59,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:59,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1440230282, now seen corresponding path program 1 times [2024-11-09 05:54:59,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:54:59,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137855104] [2024-11-09 05:54:59,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:59,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:55:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:55:04,156 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-09 05:55:04,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:55:04,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137855104] [2024-11-09 05:55:04,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137855104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:55:04,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:55:04,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:55:04,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964599382] [2024-11-09 05:55:04,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:55:04,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:55:04,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:55:04,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:55:04,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:55:04,161 INFO L87 Difference]: Start difference. First operand 6672 states and 9463 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 05:55:06,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:08,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:10,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:17,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:20,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:22,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:24,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:27,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:55:27,104 INFO L93 Difference]: Finished difference Result 11794 states and 16611 transitions. [2024-11-09 05:55:27,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:55:27,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 199 [2024-11-09 05:55:27,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:55:27,155 INFO L225 Difference]: With dead ends: 11794 [2024-11-09 05:55:27,155 INFO L226 Difference]: Without dead ends: 6468 [2024-11-09 05:55:27,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:55:27,182 INFO L432 NwaCegarLoop]: 1868 mSDtfsCounter, 1799 mSDsluCounter, 5491 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1800 SdHoareTripleChecker+Valid, 7359 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:55:27,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1800 Valid, 7359 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 842 Invalid, 5 Unknown, 0 Unchecked, 22.4s Time] [2024-11-09 05:55:27,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6468 states. [2024-11-09 05:55:27,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6468 to 6448. [2024-11-09 05:55:27,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6448 states, 3910 states have (on average 1.2800511508951407) internal successors, (5005), 3961 states have internal predecessors, (5005), 2049 states have call successors, (2049), 489 states have call predecessors, (2049), 488 states have return successors, (2060), 2041 states have call predecessors, (2060), 2048 states have call successors, (2060) [2024-11-09 05:55:27,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6448 states to 6448 states and 9114 transitions. [2024-11-09 05:55:27,631 INFO L78 Accepts]: Start accepts. Automaton has 6448 states and 9114 transitions. Word has length 199 [2024-11-09 05:55:27,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:55:27,632 INFO L471 AbstractCegarLoop]: Abstraction has 6448 states and 9114 transitions. [2024-11-09 05:55:27,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 05:55:27,633 INFO L276 IsEmpty]: Start isEmpty. Operand 6448 states and 9114 transitions. [2024-11-09 05:55:27,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-09 05:55:27,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:55:27,644 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:55:27,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:55:27,645 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:55:27,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:55:27,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1069042632, now seen corresponding path program 1 times [2024-11-09 05:55:27,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:55:27,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235431334] [2024-11-09 05:55:27,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:55:27,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:55:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:55:31,052 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-09 05:55:31,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:55:31,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235431334] [2024-11-09 05:55:31,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235431334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:55:31,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:55:31,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:55:31,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929332981] [2024-11-09 05:55:31,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:55:31,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:55:31,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:55:31,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:55:31,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:55:31,057 INFO L87 Difference]: Start difference. First operand 6448 states and 9114 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-09 05:55:33,146 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 [] [2024-11-09 05:55:38,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:40,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:55:40,649 INFO L93 Difference]: Finished difference Result 16941 states and 23840 transitions. [2024-11-09 05:55:40,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:55:40,650 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), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 204 [2024-11-09 05:55:40,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:55:40,715 INFO L225 Difference]: With dead ends: 16941 [2024-11-09 05:55:40,715 INFO L226 Difference]: Without dead ends: 10521 [2024-11-09 05:55:40,744 INFO L431 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 [2024-11-09 05:55:40,745 INFO L432 NwaCegarLoop]: 2548 mSDtfsCounter, 1588 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1588 SdHoareTripleChecker+Valid, 4278 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:55:40,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1588 Valid, 4278 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2024-11-09 05:55:40,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10521 states. [2024-11-09 05:55:41,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10521 to 10512. [2024-11-09 05:55:41,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10512 states, 6377 states have (on average 1.2778736082797553) internal successors, (8149), 6475 states have internal predecessors, (8149), 3295 states have call successors, (3295), 840 states have call predecessors, (3295), 839 states have return successors, (3306), 3277 states have call predecessors, (3306), 3294 states have call successors, (3306) [2024-11-09 05:55:41,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10512 states to 10512 states and 14750 transitions. [2024-11-09 05:55:41,518 INFO L78 Accepts]: Start accepts. Automaton has 10512 states and 14750 transitions. Word has length 204 [2024-11-09 05:55:41,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:55:41,518 INFO L471 AbstractCegarLoop]: Abstraction has 10512 states and 14750 transitions. [2024-11-09 05:55:41,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-09 05:55:41,519 INFO L276 IsEmpty]: Start isEmpty. Operand 10512 states and 14750 transitions. [2024-11-09 05:55:41,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-09 05:55:41,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:55:41,530 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:55:41,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 05:55:41,531 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:55:41,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:55:41,531 INFO L85 PathProgramCache]: Analyzing trace with hash 328513154, now seen corresponding path program 1 times [2024-11-09 05:55:41,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:55:41,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813898701] [2024-11-09 05:55:41,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:55:41,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:55:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:55:46,454 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-09 05:55:46,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:55:46,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813898701] [2024-11-09 05:55:46,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813898701] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:55:46,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652948934] [2024-11-09 05:55:46,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:55:46,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:55:46,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:55:46,458 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:55:46,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:55:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:55:51,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 4621 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:55:51,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:55:51,820 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-09 05:55:51,821 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:55:51,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652948934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:55:51,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:55:51,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-11-09 05:55:51,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118783741] [2024-11-09 05:55:51,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:55:51,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:55:51,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:55:51,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:55:51,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:55:51,825 INFO L87 Difference]: Start difference. First operand 10512 states and 14750 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-09 05:55:53,881 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 [] [2024-11-09 05:55:55,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:57,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:59,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:01,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:12,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:18,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:25,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:56:25,775 INFO L93 Difference]: Finished difference Result 24835 states and 34834 transitions. [2024-11-09 05:56:25,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:56:25,776 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 211 [2024-11-09 05:56:25,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:56:25,886 INFO L225 Difference]: With dead ends: 24835 [2024-11-09 05:56:25,886 INFO L226 Difference]: Without dead ends: 17234 [2024-11-09 05:56:25,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-11-09 05:56:25,926 INFO L432 NwaCegarLoop]: 2632 mSDtfsCounter, 1836 mSDsluCounter, 12294 mSDsCounter, 0 mSdLazyCounter, 1776 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 14926 SdHoareTripleChecker+Invalid, 1783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1776 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:56:25,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1840 Valid, 14926 Invalid, 1783 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1776 Invalid, 5 Unknown, 0 Unchecked, 32.7s Time] [2024-11-09 05:56:25,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17234 states. [2024-11-09 05:56:27,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17234 to 17113. [2024-11-09 05:56:27,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17113 states, 10392 states have (on average 1.2789645881447267) internal successors, (13291), 10567 states have internal predecessors, (13291), 5341 states have call successors, (5341), 1372 states have call predecessors, (5341), 1379 states have return successors, (5380), 5301 states have call predecessors, (5380), 5340 states have call successors, (5380) [2024-11-09 05:56:27,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17113 states to 17113 states and 24012 transitions. [2024-11-09 05:56:27,161 INFO L78 Accepts]: Start accepts. Automaton has 17113 states and 24012 transitions. Word has length 211 [2024-11-09 05:56:27,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:56:27,163 INFO L471 AbstractCegarLoop]: Abstraction has 17113 states and 24012 transitions. [2024-11-09 05:56:27,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-09 05:56:27,163 INFO L276 IsEmpty]: Start isEmpty. Operand 17113 states and 24012 transitions. [2024-11-09 05:56:27,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-09 05:56:27,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:56:27,174 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:56:27,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:56:27,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:56:27,376 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:56:27,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:56:27,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1811469320, now seen corresponding path program 1 times [2024-11-09 05:56:27,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:56:27,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347496099] [2024-11-09 05:56:27,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:56:27,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:56:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:56:31,906 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-09 05:56:31,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:56:31,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347496099] [2024-11-09 05:56:31,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347496099] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:56:31,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124380505] [2024-11-09 05:56:31,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:56:31,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:56:31,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:56:31,910 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:56:31,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:56:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:56:36,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 4623 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:56:36,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:56:37,419 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-09 05:56:37,419 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:56:37,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124380505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:56:37,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:56:37,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-09 05:56:37,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295179004] [2024-11-09 05:56:37,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:56:37,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:56:37,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:56:37,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:56:37,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:56:37,424 INFO L87 Difference]: Start difference. First operand 17113 states and 24012 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-09 05:56:39,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:41,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:43,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:45,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:47,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:59,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:01,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:03,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:08,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:10,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:11,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:14,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:16,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:57:16,197 INFO L93 Difference]: Finished difference Result 38081 states and 53398 transitions. [2024-11-09 05:57:16,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:57:16,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 212 [2024-11-09 05:57:16,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:57:16,357 INFO L225 Difference]: With dead ends: 38081 [2024-11-09 05:57:16,357 INFO L226 Difference]: Without dead ends: 23879 [2024-11-09 05:57:16,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-09 05:57:16,424 INFO L432 NwaCegarLoop]: 2697 mSDtfsCounter, 1836 mSDsluCounter, 12542 mSDsCounter, 0 mSdLazyCounter, 1788 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 15239 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1788 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:57:16,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1840 Valid, 15239 Invalid, 1795 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1788 Invalid, 5 Unknown, 0 Unchecked, 37.4s Time] [2024-11-09 05:57:16,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23879 states. [2024-11-09 05:57:18,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23879 to 23734. [2024-11-09 05:57:18,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23734 states, 14419 states have (on average 1.2792149247520632) internal successors, (18445), 14683 states have internal predecessors, (18445), 7387 states have call successors, (7387), 1904 states have call predecessors, (7387), 1927 states have return successors, (7466), 7321 states have call predecessors, (7466), 7386 states have call successors, (7466) [2024-11-09 05:57:18,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23734 states to 23734 states and 33298 transitions. [2024-11-09 05:57:18,293 INFO L78 Accepts]: Start accepts. Automaton has 23734 states and 33298 transitions. Word has length 212 [2024-11-09 05:57:18,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:57:18,294 INFO L471 AbstractCegarLoop]: Abstraction has 23734 states and 33298 transitions. [2024-11-09 05:57:18,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-09 05:57:18,294 INFO L276 IsEmpty]: Start isEmpty. Operand 23734 states and 33298 transitions. [2024-11-09 05:57:18,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-09 05:57:18,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:57:18,310 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:57:18,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:57:18,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:57:18,511 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:57:18,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:57:18,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1947465691, now seen corresponding path program 1 times [2024-11-09 05:57:18,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:57:18,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56242577] [2024-11-09 05:57:18,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:57:18,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:57:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:57:23,381 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-09 05:57:23,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:57:23,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56242577] [2024-11-09 05:57:23,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56242577] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:57:23,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686281622] [2024-11-09 05:57:23,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:57:23,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:57:23,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:57:23,385 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:57:23,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:57:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:57:27,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 4625 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:57:27,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:57:28,271 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-09 05:57:28,271 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:57:28,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686281622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:57:28,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:57:28,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-09 05:57:28,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489668880] [2024-11-09 05:57:28,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:57:28,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:57:28,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:57:28,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:57:28,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:57:28,275 INFO L87 Difference]: Start difference. First operand 23734 states and 33298 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-09 05:57:30,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:32,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:34,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:36,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:38,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:49,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:51,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:53,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:57,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:59,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:00,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:02,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:03,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:05,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:06,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:07,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:09,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:09,869 INFO L93 Difference]: Finished difference Result 51315 states and 71954 transitions. [2024-11-09 05:58:09,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:58:09,870 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 213 [2024-11-09 05:58:09,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:10,068 INFO L225 Difference]: With dead ends: 51315 [2024-11-09 05:58:10,068 INFO L226 Difference]: Without dead ends: 30492 [2024-11-09 05:58:10,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-09 05:58:10,156 INFO L432 NwaCegarLoop]: 2371 mSDtfsCounter, 1836 mSDsluCounter, 11238 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 13609 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:10,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1840 Valid, 13609 Invalid, 1679 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1671 Invalid, 6 Unknown, 0 Unchecked, 40.0s Time] [2024-11-09 05:58:10,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30492 states. [2024-11-09 05:58:11,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30492 to 23738. [2024-11-09 05:58:11,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23738 states, 14423 states have (on average 1.2791374887332732) internal successors, (18449), 14683 states have internal predecessors, (18449), 7387 states have call successors, (7387), 1904 states have call predecessors, (7387), 1927 states have return successors, (7466), 7325 states have call predecessors, (7466), 7386 states have call successors, (7466) [2024-11-09 05:58:11,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23738 states to 23738 states and 33302 transitions. [2024-11-09 05:58:11,753 INFO L78 Accepts]: Start accepts. Automaton has 23738 states and 33302 transitions. Word has length 213 [2024-11-09 05:58:11,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:11,753 INFO L471 AbstractCegarLoop]: Abstraction has 23738 states and 33302 transitions. [2024-11-09 05:58:11,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-09 05:58:11,754 INFO L276 IsEmpty]: Start isEmpty. Operand 23738 states and 33302 transitions. [2024-11-09 05:58:11,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-09 05:58:11,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:11,766 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:11,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 05:58:11,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:11,968 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:58:11,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:11,969 INFO L85 PathProgramCache]: Analyzing trace with hash -405718287, now seen corresponding path program 1 times [2024-11-09 05:58:11,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:11,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070081668] [2024-11-09 05:58:11,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:11,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:17,062 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-09 05:58:17,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:17,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070081668] [2024-11-09 05:58:17,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070081668] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:58:17,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371844260] [2024-11-09 05:58:17,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:17,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:17,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:17,069 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:17,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:58:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:21,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 4627 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:58:21,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:22,303 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-09 05:58:22,303 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:58:22,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371844260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:22,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:58:22,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-09 05:58:22,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260105597] [2024-11-09 05:58:22,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:22,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:58:22,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:22,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:58:22,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:58:22,306 INFO L87 Difference]: Start difference. First operand 23738 states and 33302 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-09 05:58:24,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:26,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:28,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:30,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:32,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:45,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:49,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:51,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:54,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:57,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:58:58,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:59:00,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:59:01,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:59:02,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:59:02,803 INFO L93 Difference]: Finished difference Result 51327 states and 71966 transitions. [2024-11-09 05:59:02,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:59:02,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 214 [2024-11-09 05:59:02,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:59:02,985 INFO L225 Difference]: With dead ends: 51327 [2024-11-09 05:59:02,985 INFO L226 Difference]: Without dead ends: 30500 [2024-11-09 05:59:03,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-09 05:59:03,077 INFO L432 NwaCegarLoop]: 2697 mSDtfsCounter, 1836 mSDsluCounter, 12542 mSDsCounter, 0 mSdLazyCounter, 1788 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 15239 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1788 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:59:03,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1840 Valid, 15239 Invalid, 1796 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 38.8s Time] [2024-11-09 05:59:03,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30500 states. [2024-11-09 05:59:04,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30500 to 23742. [2024-11-09 05:59:04,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23742 states, 14427 states have (on average 1.2790600956539822) internal successors, (18453), 14683 states have internal predecessors, (18453), 7387 states have call successors, (7387), 1904 states have call predecessors, (7387), 1927 states have return successors, (7466), 7329 states have call predecessors, (7466), 7386 states have call successors, (7466) [2024-11-09 05:59:04,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23742 states to 23742 states and 33306 transitions. [2024-11-09 05:59:04,498 INFO L78 Accepts]: Start accepts. Automaton has 23742 states and 33306 transitions. Word has length 214 [2024-11-09 05:59:04,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:59:04,499 INFO L471 AbstractCegarLoop]: Abstraction has 23742 states and 33306 transitions. [2024-11-09 05:59:04,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-09 05:59:04,499 INFO L276 IsEmpty]: Start isEmpty. Operand 23742 states and 33306 transitions. [2024-11-09 05:59:04,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-09 05:59:04,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:59:04,512 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:59:04,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 05:59:04,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 05:59:04,713 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:59:04,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:59:04,714 INFO L85 PathProgramCache]: Analyzing trace with hash 786029739, now seen corresponding path program 1 times [2024-11-09 05:59:04,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:59:04,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58930077] [2024-11-09 05:59:04,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:04,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:59:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:09,068 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-11-09 05:59:09,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:59:09,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58930077] [2024-11-09 05:59:09,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58930077] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:59:09,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497538855] [2024-11-09 05:59:09,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:09,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:59:09,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:59:09,072 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:59:09,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31f2d0fc-5b66-4b5e-a0f2-7085847a2c58/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:59:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:13,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 4690 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:59:13,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:59:14,693 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-09 05:59:14,693 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:59:17,845 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-09 05:59:17,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497538855] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:59:17,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [491880836] [2024-11-09 05:59:17,884 INFO L159 IcfgInterpreter]: Started Sifa with 128 locations of interest [2024-11-09 05:59:17,885 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:59:17,889 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:59:17,894 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:59:17,894 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:01:00,613 WARN L286 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 4100 DAG size of output: 4090 (called from [L 210] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)